title: Inexpensive treatment of frozen dairy products for membrane filtration.
abstract: 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.
mesh_terms: D001419:Bacteria / Q000254:growth & development*; D001431:Bacteriological Techniques; D003611:Dairy Products; D005374:Filtration; D005516:Food Microbiology; D011136:Polysorbates; D014357:Trypsin
chemical_list: D011136:Polysorbates; D014357:Trypsin