Inexpensive treatment of frozen dairy products for membrane filtration.
Treatment of frozen dairy products with trypsin and Tween 80 before membrane filtration for microbiological analysis was faster and cost less than treatment with Streptomyces griseus protease-Tween 80. Viable cell counts so Escherichia coli, Staphylococcus aureus, Streptococcus faecium, and Salmonella typhimurium were not reduced.
D001419:Bacteria / Q000254:growth & development*; D001431:Bacteriological Techniques; D003611:Dairy Products; D005374:Filtration; D005516:Food Microbiology; D011136:Polysorbates; D014357:Trypsin
D011136:Polysorbates; D014357:Trypsin