Fachbereich Veterinärmedizin



    Erfahrungen bei der Isolierung von Salmonellen aus Lebensmitteln unterschiedlicher Risikokategorien (1978)

    Zeitschriftenartikel / wissenschaftlicher Beitrag
    Siems, H. (WE 8)
    Zentralblatt für Bakteriologie, Mikrobiologie und Hygiene. Serie B; 167(1-2) — S. 120–128
    ISSN: 0932-6073
    Institut für Lebensmittelsicherheit und -hygiene

    Königsweg 69
    14163 Berlin
    +49 30 838 62550

    Abstract / Zusammenfassung

    146 samples of pancreatic powder, 208 samples of pasteurized egg albumen, both deep-frozen and spray-dried, and 355 samples of frozen poultry were investigated for the presence of salmonellae. Four pre-enrichment media (lactose broth, nutrient broth, buffered peptone water and tryptone soya broth) and two direct selective enrichment media (dulcitol selenite and tetrathionate) were used. For the pre-enrichment of frozen poultry, buffered peptone water and tryptone soya broth proved to be more satisfactory than lactose broth and nutrient broth. Pre-enrichmen't of freeze-dried material in a non-selective medium yielded more Salmonella than were obtained by a direct selective enrichment. 16 of 146 samples of freeze-dried pancreatic powder contained salmonellae. Accordingly, tissue and organs of slaughter animals designed for the production of pharmaceutical preparations require regular bacteriological control.