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  • 1.
    Alsterlund, Rolf
    et al.
    Infektionskliniken, Centralsjukhuset, Kristianstad, Sweden.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Edén, Tony
    Kliniska bakteriologiska laboratoriet.
    De Jong, Birgitta
    Epidemiologiska enheten, Smittskyddsenheten.
    Lyxell, Gabriella
    Miljölaboratoriet i Umeå AB, Umeå, Sweden.
    Nilsson, Per Olof
    Länsveterinär, Kristianstad, Sweden.
    Ransjö, Ulrika
    Enheten för sjukhushygien, Karolinska universitetssjukhuset, Solna, Sweden.
    Yersinia enterocolitica på Bjärehalvön: Risker med kylda matvaror1995Inngår i: Svensk veterinärtidning, ISSN 0346-2250, Vol. 47, nr 6, s. 257-260Artikkel i tidsskrift (Fagfellevurdert)
  • 2.
    Alsterlund, Rolf
    et al.
    Landstinget, Kristianstads län, Sweden.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Karp, Gabriella
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Edén, Tony
    Klinisk bakteriologiska laboratoriet, Kristianstad, Sweden.
    De Jong, Birgitta
    Vattensektionen, Smittskyddsinstitutet, Sweden.
    Nilsson, Per Olof
    Länsstyrelsen, Kristianstad, Sweden.
    Ransjö, Ulrika
    Avdelningen för Klinisk mikrobiologi, Karolinska Institutet, Huddinge, Sweden.
    Yersinia enterocolitica-utbrott på Bjärehalvön visar på risker med kylda matvaror1995Inngår i: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 92, nr 12, s. 1213-1214Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [sv]

    På sensommaren 1988 hade man i Skåne ett stort lokalt utbrott med 61 fall av infektioner med Yersinia enterocolitica. DEn kliniska bilden var avsevärt mildare än som brukar rapporteras, med diarré, magsmärtor och feber som dominerande symtom, och endast två fall av svårare komplikationer. Den sannolika smittkällan var mjölk från ett litet mejeri där hygienen inte var den bästa, Utbrottet visar på en av många risker med distribution av industriellt framställda kylda livsmedel.

  • 3.
    Alsén-Eklöf, Eva
    et al.
    Livstecknet.
    Danielsson Tham (intervjuobjekt), Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Sveriges professor i livsmedelshygien: Välj risknivå med öka kunskap!1990Annet (Annet (populærvitenskap, debatt, mm))
  • 4.
    Beck-Friis, Johan
    et al.
    Svensk Veterinärtidning.
    Danielsson-Tham, Marie-Louise (intervjuobjekt)
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    ISOPOL XV – internationellt listeriasymposium i Uppsala2004Rapport (Annet (populærvitenskap, debatt, mm))
  • 5.
    Beck-Friis, Johan
    et al.
    Sveriges veterinärförbund.
    Danielsson-Tham, Marie-Louise (intervjuobjekt)
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Salmonella: en smitta att ta på allvar2004Inngår i: Svensk veterinärtidning, ISSN 0346-2250, Vol. 56, nr 10, s. 33-34Artikkel i tidsskrift (Fagfellevurdert)
  • 6.
    Bergqvist, Åsa
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Danielsson Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Smittspridning av campylobacter inom fjäderfäslakteri1986Inngår i: XV Nordiska veterinärkongressen – 15th Nordic Veterinary Congress, Stockholm 28/7–1/8 1986: Proceedings / [ed] Hans Kindahl, Ingemar Jämte, Stockholm: Sveriges Veterinärförbund , 1986, s. 355-358Konferansepaper (Fagfellevurdert)
  • 7.
    Berndtson, Eva
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Blomgren, Gunny
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Danielsson Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Incidence of campylobacter on a broiler farm1987Inngår i: The IVth International Workshop on Campylobacter Infections, Department of Clinical Bacteriology, University Göteborg, June 16–18, 1987, Göteborg, Sweden: Programme and Abstracts, 1987, s. Abstract no. 17-Konferansepaper (Fagfellevurdert)
  • 8.
    Berndtson, Eva
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Danielsson Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Engvall, Anders
    Department of Epizootology, National Veterinary Institute, Uppsala, Sweden.
    Campylobacter incidence on a chicken farm and the spread of Campylobacter during the slaughter process1996Inngår i: International Journal of Food Microbiology, ISSN 0168-1605, E-ISSN 1879-3460, Vol. 32, nr 1-2, s. 35-47Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    To get a better understanding of the epidemiology of Campylobacter, a chicken farm was studied for 16 weeks with samplings in each flock weekly from input until the flock became colonized with Campylobacter or slaughtered. Samples were taken from fresh droppings and from drinkers during the rearing period, as well as from the environment in empty houses. The spread of Campylobacter during the slaughter process was also surveyed. No Campylobacter was found in samples from newly-hatched ol one-week-old chickens or their drinkers. All Hocks but one were colonized at two to five weeks of age. All Campylobacter isolates belonged to the same sero- and biotype; C. jejuni Penner 2. The spread of Campylobacter in the flock was rapid and usually all samples were positive once colonization had been proven. C. jejuni was isolated from flies in ante-rooms as well as from air in chicken units ill houses with positive chicken flocks. Samples were taken at slaughter when some of the Campylobacter positive Hocks from the farm were slaughtered. Campylobacter were isolated from all sampled equipment along the processing line, from the chicken transport crates to the chillers, as well as from the air.

  • 9.
    Beuchat, L. R.
    et al.
    Center for Food Safety and Department of Food Science and Technology, University of Georgia, Griffin, GA, USA.
    Frändberg, E.
    Biology Division, National Food Administration, Uppsala, Sweden.
    Deak, T.
    Center for Food Safety and Department of Food Science and Technology, University of Georgia, Griffin, GA, USA; Department of Microbiology and Biotechnology, Szent Istvan University, Budapest, Hungary.
    Alzamora, S. M.
    Pabellon de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, Argentina.
    Chen, J.
    Center for Food Safety and Department of Food Science and Technology, University of Georgia, Griffin, GA, USA.
    Guerrero, S.
    Pabellon de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, Argentina.
    López-Malo, A.
    Departmento de Ingenieria Quimica y Alimentos, Universidad de la Americas-Puebla, Sta. Catarina Martir, Puebla, Mexico.
    Ohlsson, I.
    Department of Microbiology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Olsen, M.
    Biology Division, National Food Administration, Uppsala, Sweden.
    Peinado, J. M.
    Departmento de Microbiologia, Facultad de Biologia, Universidad Completense de Madrid, Madrid, Spain.
    Schnürer, Johan
    Department of Microbiology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    de Siloniz, M. I.
    Departmento de Microbiologia, Facultad de Biologia, Universidad Completense de Madrid, Madrid, Spain.
    Tornai-Lehoczki, J.
    National Collection of Agricultural and Industrial Microorganisms, Szent Istvan University, Budapest, Hungary.
    Performance of mycological media in enumerating desiccated food spoilage yeasts: an interlaboratory study2001Inngår i: International Journal of Food Microbiology, ISSN 0168-1605, E-ISSN 1879-3460, Vol. 70, nr 1-2, s. 89-96Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Dichloran 18% glycerol agar (DG18) was originally formulated to enumerate nonfastidious xerophilic moulds in foods containing rapidly growing Eurotium species. Some laboratories are now using DG18 as a general purpose medium for enumerating yeasts and moulds, although its performance in recovering yeasts from dry foods has not been evaluated. An interlaboratory study compared DG18 with dichloran rose bengal chloramphenicol agar (DRBC), plate count agar supplemented with chloramphenicol (PCAC), tryptone glucose yeast extract chloramphenicol agar (TGYC), acidified potato dextrose agar (APDA), and orange serum agar (OSA) for their suitability to enumerate 14 species of lyophilized yeasts. The coefficient of variation for among-laboratories repeatability within yeast was 1.39% and reproducibility of counts among laboratories was 7.1%. The order of performance of media for recovering yeasts was TGYC > PCAC = OSA > APDA > DRBC > DG18. A second study was done to determine the combined effects of storage time and temperature on viability of yeasts and suitability of media for recovery. Higher viability was retained at - 18 degreesC than at 5 degreesC or 25 degreesC for up to 42 weeks, although the difference in mean counts of yeasts stored at - 18 degreesC and 25 degreesC was only 0.78 log(10) cfu/ml of rehydrated suspension. TGYC was equal to PCAC and superior to the other four media in recovering yeasts stored at - 18 degreesC, 5 degreesC, or 25 degreesC for up to 42 weeks. Results from both the interlaboratory study and the storage study support the use of TGYC for enumerating desiccated yeasts. DG18 is not recommended as a general purpose medium for recovering yeasts from a desiccated condition.

  • 10.
    Boysen, Marianne E.
    et al.
    Department of Microbiology, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
    Björneholm, Stina
    Department of Microbiology, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
    Schnürer, Johan
    Department of Microbiology, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
    Effect of the biocontrol yeast Pichia anomala on interactions between Penicillium roqueforti, Penicillium carneum, and Penicillium paneum in moist grain under restricted air supply2000Inngår i: Postharvest biology and technology, ISSN 0925-5214, E-ISSN 1873-2356, Vol. 19, nr 2, s. 173-179Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Penicillium roqueforti was recently reclassified into the three species P. roqueforti, Penicillium carneum, and Penicillium paneum based on differences in ribosomal DNA sequences and secondary metabolites, e.g. mycotoxins. This is the first report on interaction between these closely related mould species under stress conditions. The yeast Pichia anomala (J121) inhibits growth of P. roqueforti in grain stored in malfunctioning airtight storage systems. The ability of P. anomala to inhibit all three species of the P. roqueforti group was examined in separate experiments as well as the competition between the three mould species when co-cultured with or without the yeast in non-sterile wheat grain (a(w) 0.95) under restricted air supply. Mould growth was analysed by dilution plating after 14 days and the individual colonies identified by random amplified polymorphic DNA (RAPD) fingerprinting. When co-culturing the P. roqueforti group in wheat without P. anomala all three species were able to grow to the same extent. Also, when co-culturing all species of the P. roqueforti group together with P. anomala, the growth response of the three species was very similar. Al yeast levels of 10(4) CFU g(-1),grain a pronounced inhibition was observed and at 10(5) CFU g(-1) grain a fungicidal effect was detected, indicating a potentiated effect of P. anomala when co-culturing the three mould species.

  • 11.
    Bratt, Anna
    et al.
    Borås Tidning .
    Danielsson-Tham, Marie-Louise (intervjuobjekt)
    Örebro universitet, Restaurang- och hotellhögskolan.
    Skafferiet – det är rena städskåpet2015Inngår i: Borås tidning Del 3 – Bostad söndag 18 januari 2015, ISSN 1103-9132, nr Söndag 18 januari, s. 8-9Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 12.
    Bruce, Åke
    et al.
    National Food Agency (Statens livsmedelsverk), Uppsala, Sweden.
    Danielsson-Tham, Marie-Louise
    Örebro universitet, Restaurang- och hotellhögskolan.
    Det var inte bättre förr: ett akademiföretal2015Inngår i: Mot ett modernt livsmedelssystem: livsmedelshygien och livsmedelskontroll i Sverige och Norden 1850–1950 / [ed] Per Eriksson, Stockholm: Kungl. Skogs- och lantbruksakademien , 2015, s. 7-12Kapittel i bok, del av antologi (Fagfellevurdert)
  • 13.
    Bruce, Åke
    et al.
    Statens livsmedelsverk, Uppsala, Sverige.
    Danielsson-Tham, Marie-Louise
    Örebro universitet, Restaurang- och hotellhögskolan.
    Vad kontrollerades under perioden 1850–1950 och vilka hjälpmedel i form av lagar, kunskap och teknik fanns att tillgå?2015Inngår i: Mot ett modernt livsmedelssystem: livsmedelshygien och livsmedelskontroll i Sverige och Norden 1850–1950 / [ed] Per Eriksson, Stockholm: Kungl. Skogs- och lantbruksakademien , 2015, s. 19-33Kapittel i bok, del av antologi (Fagfellevurdert)
  • 14.
    Båth, Klara
    et al.
    Department of Microbiology, Uppsala Biocenter, Swedish University of Agricultural Sciences, Uppsala, Sweden; The Swedish Institute for Food and Biotechnology, Göteborg, Sweden.
    Persson, Karin Neil
    Department of Microbiology, Uppsala Biocenter, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Schnürer, Johan
    Department of Microbiology, Uppsala Biocenter, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Leong, Su-lin L.
    Department of Microbiology, Uppsala Biocenter, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Microbiota of an unpasteurised cellar-stored goat cheese from northern Sweden2012Inngår i: Agricultural and Food Science, ISSN 1459-6067, E-ISSN 1795-1895, Vol. 21, nr 2, s. 197-203Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This qualitative study reports on lactic acid bacteria (LAB), yeasts and moulds isolated from three artisanal Swedish cellar-stored goat cheeses aged for 1, 3 and 5 months. Starter culture LAB dominated in the younger cheeses, and Leuconostoc pseudomesenteroides, common in raw goats' milk, had persisted from the unpasteurised milk into all the cheeses. Non-starter LAB dominated in the 5 month cheese, in particular, Lactobacillus sakei, a meat-associated LAB not previously isolated from cheese. Debaryomyces hansenii, and Penicillium and Mucor species were dominant among the yeasts and moulds, respectively. The cheese rind was not formed primarily from Penicillium species as in traditional cheeses such as Camembert - rather, mycelium from Mucor mucedo contributed to rind formation. Mould species known to produce sterigmatocystin, aflatoxins or ochratoxin A in cheese were not isolated in this study; growth of mycotoxigenic Aspergilli may have been inhibited by the cool conditions in the earth-cellar (4-6 degrees C).

  • 15.
    Börjesson, T.
    et al.
    Swedish Farmers Supply & Marketing Association, Stockholm, Sweden.
    Eklöv, T.
    Laboratory of Applied Physics, Linköping University, Linköping, Sweden.
    Jonsson, A.
    Swedish Farmers Supply & Marketing Association, Stockholm, Sweden.
    Sundgren, H.
    Laboratory of Applied Physics, Linköping University, Linköping, Sweden.
    Schnürer, Johan
    Department of Microbiology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Electronic nose for odor classification of grains1996Inngår i: Cereal Chemistry, ISSN 0009-0352, E-ISSN 1943-3638, Vol. 73, nr 4, s. 457-461Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    An electronic nose was used to classify grain samples based on their smell and to predict the degree of moldy/musty odor. A total of 235 samples of wheat, barley and oats, which had been odor classified by at least two grain inspectors, were used. Headspace samples from heated grain were pumped through chambers containing metal oxide semiconductor field effect transistor (MOSFET) sensors, SnO2 semiconductors and an infrared detector monitoring CO2. The sensor signals were evaluated with a pattern-recognition software program based on artificial neural networks. The samples were divided into either the four classes moldy/musty, acid/sour, burnt, or normal or the two classes good and bad according to the inspectors descriptions. They were also assigned a score describing their intensity of moldy/musty odor. The electronic nose correctly classified approximate to 75% of the samples when using the four-class system and approximate to 90% when using the two-class system. These values exceeded the corresponding percentages of agreement between two grain inspectors classifying the grain.

  • 16.
    Börjesson, T.
    et al.
    Grain Department, Lidköping, Sweden.
    Stenberg, B.
    Precision Agriculture, Department of Soil Science, SLU, Skara, Sweden.
    Schnürer, Johan
    Department of Microbiology, SLU, Uppsala, Sweden.
    Near-infrared spectroscopy for estimation of ergosterol content in barley: A comparison between reflectance and transmittance techniques2007Inngår i: Cereal Chemistry, ISSN 0009-0352, E-ISSN 1943-3638, Vol. 84, nr 3, s. 231-236Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The fungal-specific lipid ergosterol correlates with fungal biomass and often also with the degree of mycotoxin contamination of cereals. We compared the ability of a near-infrared reflectance (NIR) instrument with a broad wavelength range (400-2500 nm) and a near-infrared transmittance (NIT) instrument with a narrower wavelength range (850-1050 nm) to predict the ergosterol content of naturally infected barley samples. The two instruments were equally good at predicting ergosterol content in Swedish samples (r(2) = 0.81 and 0.83 for NIT and NIR, respectively). The NIT instrument was then used for samples from three countries (Sweden, Ireland, UK). This model had about the same root mean-squared error (approximate to 5 mg of ergosterol/kg, db, of grain) as the dataset with only Swedish samples, although the r(2) value was lower (0.58). The investigation has shown that it is possible to predict ergosterol content in whole barley samples using NIR or NIT instrumentation, and acceptable models can be obtained using different barley cultivars and samples from different countries and harvest years. This should make it possible to routinely predict the fungal biomass at grain terminals.

  • 17.
    Börjesson, T.
    et al.
    SIK - Swedish Institute for Food Research, Göteborg, Sweden; Department of Microbiology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Stöllman, U.
    SIK - Swedish Institute for Food Research, Göteborg, Sweden.
    Schnürer, Johan
    Department of Microbiology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Adsorption of volatile fungal metabolites to wheat grains and subsequent desorption1994Inngår i: Cereal Chemistry, ISSN 0009-0352, E-ISSN 1943-3638, Vol. 71, nr 1, s. 16-20Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Adsorption of the volatile fungal metabolites 2-methylfuran, 3-methyl-1-butanol, and 1-octen-3-ol to wheat grains, and their subsequent desorption, were investigated. Adsorption was performed both dynamically and statically. In the dynamic system, volatile compounds in a N2 flow were led through 400 g of wheat in a glass column. In the static system, 400 g of wheat was stored in an airtight glass vessel containing the volatile compounds in the atmosphere. Three desorption procedures were compared: an N2 flow at 20-degrees-C, an N2 flow at 50-degrees-C, and extraction with supercritical CO2. 3-Methyl-1-butanol and 1-octen-3-ol were efficiently adsorbed and could also readily be desorbed to considerably higher extents at 50-degrees-C than at 20-degrees-C. The supercritical CO2 extraction was more efficient than N2 desorption in extracting volatile compounds, but because of the smaller sample sizes (1 g), the amounts extracted per gram of grain were lower than the amounts extracted with N2 desorption at 50-degrees-C. The adsorbed amount of each volatile compound was calculated as the difference between content in the N2 stream before passage through the wheat and its content after passage. Desorption by means of a N2 stream led to the recovery of about 5% of 2-methylfuran, 35% of 3-methyl-1-butanol, and 100% of 1-octen-3-ol.

  • 18.
    Börjesson, Thomas S.
    et al.
    SIK -the Swedish Institute for Food Research, Göteborg, Sweden; Department of Microbiology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Stöllman, Ulla M.
    SIK -the Swedish Institute for Food Research, Göteborg, Sweden.
    Schnürer, Johan
    Department of Microbiology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Off-odorous compounds produced by molds on oatmeal agar: Identification and relation to other growth characteristics1993Inngår i: Journal of Agricultural and Food Chemistry, ISSN 0021-8561, E-ISSN 1520-5118, Vol. 41, nr 11, s. 2104-2111Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Ten Penicillium and Aspergillus species, four with a strong musty off-odor and six reference fungi without any characteristic odor, were cultivated on oatmeal agar for 5 days in cultivation vessels provided with an inlet and an outlet for air. Samples of volatile metabolites were collected on a porous polymer adsorbent attached to the outlet from day 2 through day 5 after inoculation. Adsorbed compounds were desorbed thermally and analyzed with GC/MS and a combined GC and sensory analysis, the GC sniff technique. Multivariate analysis of GC/MS and fungal odor data revealed strong associations between 6 of 65 volatile compounds and musty off-odor. The GC sniff technique showed that five of these, dimethyl disulfide, 1-octen-3-ol, 2-methylisoborneol, and two C11H18 compounds, had prominent off-odors. In addition, geosmin, 1-methoxy-3-methylbenzene, and methylphenol were produced in large amounts by some off-odorous fungi and contributed to their unpleasant odor. 3-Methylfuran, 2-methyl-1-propanol, and 3-methyl-1-butanol were much more commonly produced than the off-odorous compounds. Both odorous and other volatile metabolites could be detected after 2 days of fungal growth. The production of odorous metabolites was enhanced at the time of sporulation.

  • 19.
    Danielsson Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Matförgiftningar orsakat av enterohemorrhagiska E. coli1996Inngår i: Svensk veterinärtidning, ISSN 0346-2250, Vol. 48, nr 5, s. 223-225Artikkel i tidsskrift (Fagfellevurdert)
  • 20.
    Danielsson Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Hellberg, Bo
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Prevalence of enterotoxigenic staphylococci in nose, throat and skin lesions in meat-workers1984Inngår i: Acta Veterinaria Scandinavica, ISSN 1751-0147, E-ISSN 1751-0147, Vol. 25, nr 2, s. 242-249Artikkel i tidsskrift (Fagfellevurdert)
  • 21.
    Danielsson Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Hellberg, Bo
    Department of Food Hygiene, Royal Veterinary College, Stockholm, Sweden.
    The biochemical activity of enterotoxin and non-enterotoxin producing staphylococci1977Inngår i: Acta Veterinaria Scandinavica, ISSN 1751-0147, E-ISSN 1751-0147, Vol. 18, nr 2, s. 266-273Artikkel i tidsskrift (Fagfellevurdert)
  • 22.
    Danielsson Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Loncarevic, Semir
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Serovars and genomic characteristics of Listeria monocytogenes isolated from raw milk cheese1996Konferansepaper (Annet vitenskapelig)
  • 23.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Döden i grytan1996Inngår i: Icke mat allenast: En vänbok till Carl Jan Granqvist 1946-1996 / [ed] Jan Hagenfeldt, Sture Nilsson och Magnus von Platen, Örebro: Kulinariska Samfundet , 1996, s. 35-44Kapittel i bok, del av antologi (Fagfellevurdert)
  • 24.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Endringar i det mikrobiologiska økosystem: Betydning for næringsmiddelshygienen. Tilbake till hygienen? Hva bringer fremtiden av infeksjons-og resistensproblemer? Hvordan møter vi problemene? Hva kan internasjonale organer gjøre, hva gjør vi selv?1996Inngår i: Etterutdanning i veterinærmedisin, Veterinærhygienisk Forening , 1996, s. 1-3Konferansepaper (Fagfellevurdert)
  • 25.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Fekala funderingar2003Inngår i: Svensk veterinärtidning, ISSN 0346-2250, Vol. 55, nr 15, s. 53-53Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 26.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Kontroll av animaliska livsmedel: reflektioner över situationen i Sverige1996Konferansepaper (Fagfellevurdert)
  • 27.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Lura rötmånaden!1995Inngår i: SLU just nu! – Personaltidning för Sveriges lantbruksuniversitet, ISSN 1102-0954, nr 5, s. 20-20Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
    Abstract [sv]

    Tiden mellan den 22 juli och 23 augusti benämns i folkmun rötmånaden. Denna månad är känd för allehanda ruskigheter. Då föds kalvar med två huvuden, såren vill inte läka och mjölken surnar.

  • 28.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Med ögat på rötmånaden1994Inngår i: Fakta – Konsumentgillet, nr 1Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 29.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Mjölkontrollens historia: förfalskad grädde och TBC – problem på 1800-talet2003Inngår i: Vår Föda, ISSN 0042-2657, nr 6, s. 12-14Artikkel i tidsskrift (Fagfellevurdert)
  • 30.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Ny teknologi och nya mattrender: hygieniska synpunkter1996Inngår i: Etterutdannning i veterinærmedisin, Trondheim: Veterinærhygienisk Forening , 1996Konferansepaper (Fagfellevurdert)
  • 31.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Så slipper vi matförgiftningar2005Inngår i: Miljöforskning, Formas tidning för ett hållbart samhälle, ISSN 1650-4925, nr 3, s. 24-25Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 32.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Vad har hänt sedan Arlandamötet?1995Inngår i: Svensk veterinärtidning, ISSN 0346-2250, Vol. 47, nr 6, s. 289-290Artikkel i tidsskrift (Fagfellevurdert)
  • 33.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Vatten på butelj eller från kran: trender och vetenskap2004Inngår i: Vatten på butelj eller från kran?: rapport från KSLA:s konferens 13 oktober 2004 / [ed] Roger Olsson, Stockholm: Kungliga Skogs- och Lantbruksakademien , 2004, s. 5-9Kapittel i bok, del av antologi (Annet (populærvitenskap, debatt, mm))
  • 34.
    Danielsson-Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Bannerman, Elisabeth
    Institut Pasteur, Paris, France.
    Bille, Jacques
    Lausanne, Switzerland.
    Ericsson, Henrik
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala.
    Jacquet, Christine
    Institut Pasteur, Paris, France.
    Loncarevic, Semir
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala.
    Rocourt, Jocelyne
    Institut Pasteur, Paris, France.
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Ursing, Jan
    Malmö Allmänna Sjukhus, Malmö, Sweden.
    The characterization of Swedish human Listeria monocygtogenes strains isolated 1958–19941995Inngår i: Proceedings of the XII International Symposium on Problems of Listeriosis, Canning Bridge: Promaco Conventions , 1995, s. 469-469Konferansepaper (Fagfellevurdert)
  • 35.
    Danielsson-Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, SLU, Uppsala.
    Eriksson, E.
    Department of Bacteriology, National Veterinary Institute, Uppsala.
    Helmersson, Seved
    Department of Food Hygiene, Faculty of Veterinary Medicine, SLU, Uppsala.
    Leffler, My
    Section of Veterinary Service and Food Control, County Administrative Board of Gävleborg, Gävle, .
    Lüdtke, Lena
    Department of Food Hygiene, Faculty of Veterinary Medicine, SLU, Uppsala.
    Steen, Margareta
    Section of Veterinary Service and Food Control, County Administrative Board of Gävleborg, Gävle, Sweden.
    Sørgjerd, Sölvi
    Department of Food Hygiene, Faculty of Veterinary Medicine, SLU, Uppsala.
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, SLU, Uppsala.
    Causes behind a human cheese-borne outbreak of gastrointestinal listeriosis2004Inngår i: Foodborne pathogens and disease, ISSN 1535-3141, E-ISSN 1556-7125, Vol. 1, nr 3, s. 153-159Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In a previous paper, we reported an outbreak of gastrointestinal listeriosis due to consumption of fresh cheese made from raw milk and manufactured on a summer farm. The aim of the present study was to investigate why the cheese harbored Listeria monocytogenes. To our knowledge, this is the first documented outbreak of listeriosis caused by raw milk cheese where the human epidemic strain has been cultured from a dairy animal, whose milk has been used for cheese production. The conditions on a summer farm can hardly fulfil the requirements for hygienic and strictly controlled conditions necessary for safe processing of fresh cheese.

  • 36.
    Danielsson-Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Prag, Mårten
    Dep of Infectious Diseases, Örebro County Hospital, Örebvro, Sweden.
    Rocourt, Jocelyne
    Institut Pasteur, Paris, France.
    Seeliger, Heinz
    Institut für Hygiene und Mikrobiologie der Universität Würzburg, Würzburg, Germany.
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala.
    Vikerfors, T.
    Dep of Infectious Diseases, Örebro County Hospital, Örebvro, Sweden.
    A fatal case of Listeria endocarditis in a man following his tending of goats suggests an epidemiological link which is not supported by the results1997Inngår i: Journal of Veterinary Medicine Series B-Infectious Diseases and Veterinary Public Health, ISSN 0931-1793, E-ISSN 1439-0450, Vol. B 44, nr 1-10, s. 253-256Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A man died in endocarditis due to listeriosis in the late autumn. He had been looking after two goats during the summer. Listeria monocyto?enes was isolated from a rectal swab from one of the goats. The goat faeces isolate and the human blood isolate were of identical serovar. The two isolates, however, were shown to be different by multilocus electrophoretic enzyme analysis and ribotyping, as well as by biotyping, Thus, these results do not support the hypothesis that the man was infected by the goat.

  • 37.
    Danielsson-Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    A case of food-borne listerios in Sweden and the significance of correct analyses of the food1995Inngår i: 9th World Congress of Food Science and Technology: abstracts of lectures and posters. Vol. II, Budapest, Hungary: The Hungarian Scientific Society for Food Industry , 1995, s. 159-159Konferansepaper (Fagfellevurdert)
  • 38.
    Danielsson-Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala.
    Tham, WilhelmDepartment of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala.
    Concluding remarks and general discussion: Food Associated Pathogens, May 6-8, 1996, Uppsala, Sweden1997Konferanseproceedings (Annet vitenskapelig)
  • 39.
    Danielsson-Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Listeria – insigths and reflections2004Inngår i: ISOPOL XV – XV International Symposium on Problems of ListeriosisUppsala, Sweden, September 12–15, 2004 / [ed] Marie-Louise Danielsson-Tham, Wilhelm Tham och Henrik Ericsson, Uppsala: Dep of Food Hygiene, Faculty of Veterinary Medicine and Animal Sciences, SLU , 2004, s. Abstract Nr. 151-Konferansepaper (Fagfellevurdert)
  • 40.
    Danielsson-Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Tham, WilhelmDepartment of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Proceedings and Programme: Food Associated Pathogens, May 6-8, 1996, Uppsala, Sweden1996Konferanseproceedings (Fagfellevurdert)
  • 41.
    Danielsson-Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala.
    Tham, WilhelmDepartment of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala.
    Proceedings of the symposium Food Associated Pathogens, May 6-8, 1996, Uppsala, Sweden1996Konferanseproceedings (Fagfellevurdert)
  • 42.
    Danielsson-Tham, Marie-Louise
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Programme Opening Ceremony: Food Associated Pathogens1996Inngår i: Proceedings of the symposium Food Associated Pathogens, May 6-8, 1996, Uppsala, Sweden / [ed] Wilhelm Tham & Marie-Louise Danielsson-Tham, Uppsala: SLU, Department of Food Hygiene , 1996Konferansepaper (Fagfellevurdert)
  • 43. Domingo, Jose L.
    et al.
    Ericson Jogsten, Ingrid
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Eriksson, Ulrika
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Martorell, Isabel
    Perello, Gemma
    Nadal, Marti
    van Bavel, Bert
    Örebro universitet, Institutionen för naturvetenskap och teknik.
    Human dietary exposure to perfluoroalkyl substances in Catalonia, Spain: temporal trend2012Inngår i: Food Chemistry, ISSN 0308-8146, E-ISSN 1873-7072, Vol. 135, nr 3, s. 1575-1582Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In this study, we assessed the levels of 18 perfluoroalkyl substances (PFASs) in the most widely consumed foodstuffs in Catalonia, Spain, as well as the total dietary intake of these compounds. Forty food items were analysed. Only perfluoropentanoic acid (PFPeA), perfluorohexadecanoic acid (PFHxDA) and perfluorooctanoicdecanoic acid (PFOcDA) were not detected in any sample. Perfluorooctane sulfonate (PFOS) was the compound found in the highest number of samples (33 out of 80), followed by perfluorooctanoic acid (PFOA), perfluoroheptanoic acid (PFHpA), perfluorohexane sulfonic acid (PFHxS), perfluorodecanoic acid (PFDA) and perfluorodecane sulfonic acid (PFDS). Fish and shellfish was the food group in which more PFASs were detected and where the highest PFAS concentrations were found. The highest dietary intakes corresponded to children, followed by male seniors, with values of 1787 and 1466 ng/day, respectively. For any of the age/gender groups of the population, the Tolerable Daily Intakes (TDIs) recommended by the EFSA were not exceeded. In general terms, PFAS levels found in the current study are lower than the concentrations recently reported in other countries.

  • 44.
    Eilertz, Ingrid
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, University of Agricultural Sciences, Uppsala, Sweden.
    Danielsson Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, University of Agricultural Sciences, Uppsala, Sweden.
    Hammarberg, Karl-Erik
    Department of Food Hygiene, Faculty of Veterinary Medicine, University of Agricultural Sciences, Uppsala, Sweden.
    Reeves, MW
    Rocourt, Jocelyne
    Laboratoire des Listeria, Institute Pasteur, Paris, France.
    Seeliger, HPR
    Institute für Hygiene und Mikrobiologie, Würzburg, Germany.
    Swaminathan, Balasubramanian
    Centers for Disease Control and Prevention, Atlanta GA, USA.
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, University of Agricultural Sciences, Uppsala, Sweden.
    Isolation of Listeria monocytogenes from goat cheese associated with a case of listeriosis in goat1993Inngår i: Acta Veterinaria Scandinavica, ISSN 1751-0147, E-ISSN 1751-0147, Vol. 34, nr 2, s. 145-149Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Listeria monocytogenes was isolated from the brain of a goat, which was euthanized due to listeriosis. A few weeks later a similar subtype of L. monocytogenes was isolated from an on-farm manufactured fresh cheese which did not contain any milk from the goat which had suffered from listeriosis. A similar subtype was also found on 1 of the shelves in the refrigerator where cheeses were stored. Prior to the onset of listeriosis, 1 fresh cheese had been made of milk from the actual goat, which may have excreted L. monocytogenes in her milk. Thus, the cheese made of this milk may have contaminated the shelves in the refrigerator which then has served as a Listeria reservoir for new cheeses during several weeks.

  • 45.
    Eklöw, A.
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Ericsson, Henrik
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Loncarevic, Semir
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Mentzing, L.-O.
    Communicable Disease Center for Värmland, Karlstad Central Hospital, Karlstad, Sweden.
    Persson, I
    Communicable Disease Center for Värmland, Karlstad Central Hospital, Karlstad, Sweden.
    Unnerstad, Helle
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Listeriosis in the province of Värmland: The first reported outbreak of food-borne listeriosis in Sweden1996Inngår i: Proceedings of the symposium Food Associated Pathogens, May 6-8, 1996, Uppsala, Sweden / [ed] Wilhelm Tham & Marie-Louise Danielsson-Tham, Uppsala: SLU, Department of Food Hygiene , 1996, s. 222-223Konferansepaper (Fagfellevurdert)
  • 46. Eklöw, Annelie
    et al.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Bannerman, Elisabeth
    Bille, Jacquet
    Ericsson, Henrik
    Jacquet, Christine
    Loncarevic, Semir
    Rocourt, Jocelyne
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Ursing, Jan
    Three important clones of Listeria monocytogenes1996Inngår i: Proceedings of the symposium Food Associated Pathogens, May 6-8, 1996, Uppsala, Sweden / [ed] Wilhelm Tham & Marie-Louise Danielsson-Tham, Uppsala: SLU, Department of Food Hygiene , 1996, s. 221-222Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The object of this study was to characterize Swedish human strains of Listeria monocytogenes

  • 47.
    Eklöw, Annelie
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Danielsson-Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Ericsson, Henrik
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Loncarevic, Semir
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Unnerstad, Helle
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Värmlandsutbrottet – det första listeriosutbrottet i Sverige där smittkällan identifierats1995Inngår i: Poster-sammanfattningar – Livsmedel 95, Uppsala, Uppsala, 1995, s. MM13-MM13Konferansepaper (Fagfellevurdert)
  • 48.
    Ekman, Markus
    et al.
    Örebro universitet, Restaurang- och hotellhögskolan. Food Science Summer Scholars Program, Cornell University, Ithaca NY, USA.
    Olsson, Åsa Amanda
    Food Science Summer Scholars Program, Cornell University, Ithaca NY, USA; School of Hospitality, Culinary Arts and Meal Science, Örebro University, Sweden; School of Science and Technology, Örebro University, Sweden.
    Andersson, Kent
    Food Science Summer Scholars Program, Cornell University, Ithaca NY, USA; School of Hospitality, Culinary Arts and Meal Science, Örebro University, Sweden.
    Jonsson, Amanda
    Food Science Summer Scholars Program, Cornell University, Ithaca NY, USA; School of Hospitality, Culinary Arts and Meal Science, Örebro University, Sweden; School of Science and Technology, Örebro University, Sweden.
    Stelick, Alina
    Department of Food Science, Cornell University, Ithaca NY, USA.
    Dando, Robin
    Department of Food Science, Cornell University, Ithaca NY, USA.
    Applying sorting algorithms to sensory ranking tests – a proof of concept study2020Inngår i: Current Research in Food Science, ISSN 2665-9271Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In a sensory or consumer setting, panelists are commonly asked to rank a set of stimuli, either by the panelist’s liking of the samples, or by the samples’ perceived intensity of a particular sensory note. Ranking is seen as a “simple” task for panelists, and thus is usually performed with minimal (or no) specific instructions given to panelists. Despite its common usage, seemingly little is known about the specific cognitive task that panelists are performing when ranking samples. It becomes quickly unruly to suggest a series of paired comparisons between samples, with 45 individual paired comparisons needed to rank 10 samples. Comparing a number of elements with regards to a scaled value is common in computer science, with a number of differing sorting algorithms used to sort an array of elements. We compared the efficacy of the most basic sorting algorithm, Bubble Sort (based on comparing each element to its neighbor, moving the higher to the right, and repeating), vs a more advanced algorithm, Merge Sort (based on dividing the array into sub arrays, sorting these sub arrays, and then combining), in a sensory ranking task of 6 ascending concentrations of sucrose (n=73 panelists). Results confirm that as seen in computer science, a Merge Sort procedure performs better than Bubble Sorting in sensory ranking tasks, although the perceived difficulty of the approach suggests panelists would benefit from a period of training. Lastly, through a series of video recorded one-on-one interviews, and an additional sensory ranking test (n=78), it seems that most panelists natively follow a similar procedure to Bubble Sorting, with correspondingly inferior results to those that may be obtained if a Merge Sorting procedure was applied. Results suggests that ranking may be improved if panelists were given a simple set of instructions on the Merge Sorting procedure.

  • 49.
    Engvall, Anders
    et al.
    Department of Epizootiology and the Bacteriological Laboratory, National Veterinary Institute, Uppsala, Sweden.
    Bergqvist, Åsa
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Sandstedt, Karin
    Department of Epizootiology and the Bacteriological Laboratory, National Veterinary Institute, Uppsala, Sweden.
    Danielsson Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Colonization of broilers with campylobacter in conventional broiler-chicken flocks1986Inngår i: Acta Veterinaria Scandinavica, ISSN 1751-0147, E-ISSN 1751-0147, Vol. 27, nr 4, s. 540-547Artikkel i tidsskrift (Fagfellevurdert)
  • 50.
    Ericsson, Henrik
    et al.
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Danielsson Tham, Marie-Louise
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Stålhandske, Per
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Tham, Wilhelm
    Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Subtypning av en i Sverige vanlig fagovar av Listeria monocytogenes1992Inngår i: Svenska Läkaresällskapets Riksstämma 25–27 november 1992: Program & sammanfattningar / [ed] Lars Åke Pellborn, Stockholm: Svenska läkaresällskapet , 1992, s. 250-250Konferansepaper (Annet vitenskapelig)
123 1 - 50 of 139
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