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Comparison of Three Sampling Techniques for Microbiological Analysis of Meat Surfaces
Author(s) -
FLISS I.,
SIMARD R. E.,
ETTRIKI A.
Publication year - 1991
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1991.tb08021.x
Subject(s) - sampling (signal processing) , fecal coliform , contamination , significant difference , aerobic bacteria , agar , feces , veterinary medicine , coliform bacteria , food science , agar plate , bacteria , biology , microbiology and biotechnology , mathematics , medicine , ecology , water quality , statistics , genetics , filter (signal processing) , computer science , computer vision
Efficiencies of three surface sampling techniques were compared for estimating total aerobic microflora, total coliform, fecal coliform and Escherichia coli. They were: stomaching excised skin (a destructive technique), direct agar contact and double moist swab (nondestructive techniques). Thirty ovine carcasses were evaluated for surface contamination, with sampling on three different dates. Difference between the three methods of sampling was significant for all bacterial groups evaluated. Stomaching excised skin recovered the highest number of bacteria. Moreover, significant differences in counts were observed with periods of sampling. For total aerobic microflora, counts appeared to be influenced by both sampling technique and sampling date.