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  • Blackwell Publishing Ltd  (3)
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  • Blackwell Publishing Ltd  (3)
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  • 1
    Digitale Medien
    Digitale Medien
    BACTERIOLOGICAL SURVEY OF THE CHANNEL CATFISH (Ictalurus punctatus) AT THE RETAIL LEVEL (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Using standard procedures, aerobic plate counts (APC), total and fecal coliform most probable number (MPN) determinations, and analyses for Salmonella, Arizona, Shigella and Edwardsiella tarda were performed on 335 fresh and 342 frozen sample units of channel catfish. APC values for 93.0% of the fresh and 94.5% of the frozen samples were 〈inlineGraphic alt="leqslant R: less-than-or-eq, slant" extraInfo="nonStandardEntity" href="urn:x-wiley:00221147:JFDS359:les" location="les.gif"/〉107 organisms per g. Fecal coliform MPN values for 70.7% of the fresh and 92.4% of the frozen samples were 〈inlineGraphic alt="leqslant R: less-than-or-eq, slant" extraInfo="nonStandardEntity" href="urn:x-wiley:00221147:JFDS359:les" location="les.gif"/〉400 organisms per g. The occurrence of Salmonella in channel catfish was subject to seasonal variation. Salmonella-positive samples yielded 15 serotypes from 8 somatic groups. Edwardsiella tarda was isolated from two samples; Arizona and Shigella were not detected.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1977.tb01498.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    RAPID IDENTIFICATION OF Salmonella AND RELATED FOODBORNE BACTERIA BY FIVE BIOCHEMICAL MULTITEST SYSTEMS (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: An evaluation was made of five commercially available “multitest systems” suggested for biochemically differentiating members of the Enterobacteriaceae. Three biochemical kits (Enterotube, PathoTec Rapid I-D System, and Modified Expanded R/B Enteric Differential System) gave incorrect identification for two of 110 Salmonella cultures, whereas two kits (API-20 Enteric and Minitek Differential System) gave correct identification of all 110 Salmonella cultures. The PathoTec Raoid I-D Svstem gave incorrect identification for two of 15 non-Salmonella, whereas the remaining four kits gave incorrect identification for three of these cultures. The overall average correlation for all biochemical tests or substrates evaluated within each system was as follows: API, 99%; Enterotube, 99%; Minitek, 99%; PathoTec, 97%; and R/B, 96%.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1977.tb12577.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Improved Salmonella Species Recovery from Nonfat Dry Milk Pre-enriched Under Reduced Rehydration (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 48 (1983), S. 0 
    Details
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Recovery of Salmonella species from nonfat dry milk was performed by the method of the Association of Official Analytical Chemists (AOAC), in which a 25-g sample is rapidly rehydrated in 225 ml of sterile distilled water. Recovery was improved by swirling pre-enriched samples at an initial 1:2 sample/water ratio and diluting 60 min later to a final 1:9 sample/water ratio before incubation at 35°C. In a second improved method, 25-g samples were gently added to 225-ml volumes of sterile distilled water and allowed to soak undisturbed for 60 min at room temperature before incubation. Direct comparison of the AOAC and soak methods showed that 16 and 62 Salmonella-positive samples, respectively, were detected by each of these methods. Sensitivity of the soak method did not decrease during analysis of four 100-g samples or a single 375-g sample as compared with analysis of fifteen individual 25-g samples.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2621.1983.tb09182.x
    Standort Signatur Erwartet Verfügbarkeit
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