Carryover of preformed staphylococcal enterotoxins and thermostable deoxyribonuclease from raw cow milk to Khoa--a heat-concentrated Indian milk product.
Preformation of enterotoxins and thermostable deoxyribonuclease by Staphylococcus aureus in raw cow milk and their carryover to Khoa--a heat-concentrated (98 degrees C for 15 to 20 min) Indian milk product--was evaluated. Detectable enterotoxins and deoxyribonuclease, as evidenced in the zone diameters of 10 to 16 mm, were performed in 10 h incubation of milk samples inoculated with strains of Staphylococcus aureus at 1 X 10(6) cfu/ml of milk. Both preformed enterotoxins and thermostable deoxyribonuclease were carried over to Khoa from raw milk. The study implies the use of good quality raw milk free from pathogenic organisms for preparation of milk products such as Khoa.
M C
MC
Varadaraj
V K
VK
Nambudripad
D000818:Animals; D002417:Cattle; D003611:Dairy Products / Q000032:analysis*; D003851:Deoxyribonucleases / Q000032:analysis*; D004768:Enterotoxins / Q000032:analysis*; D005516:Food Microbiology; D006358:Hot Temperature; D066298:In Vitro Techniques; D007194:India; D008892:Milk / Q000032:analysis / Q000201:enzymology / Q000382:microbiology*; D013211:Staphylococcus aureus / Q000201:enzymology
D004768:Enterotoxins; C026066:enterotoxin A, Staphylococcal; D003851:Deoxyribonucleases