title: Enterotoxin production in milk at 22 and 4 degrees C by Escherichia coli and Yersinia enterocolitica.
abstract: Enterotoxigenic Escherichia coli (five strains) and Yersinia enterocolitica (five strains) were cultivated in sterile milk at 22 and 4 degrees C. The bacteria grew well at both temperatures. Three strains of E. coli produced heat-labile enterotoxin in the milk at 22 degrees C as demonstrated by enzyme-linked immunosorbent assay. Heat-stable enterotoxins were not detected in milk by the infant mouse test.
mesh_terms: D000818:Animals; D001427:Bacterial Toxins; D002417:Cattle; D003080:Cold Temperature; D004768:Enterotoxins / Q000096:biosynthesis*; D004926:Escherichia coli / Q000378:metabolism*; D029968:Escherichia coli Proteins; D008892:Milk / Q000382:microbiology*; D015007:Yersinia / Q000378:metabolism*
chemical_list: D001427:Bacterial Toxins; D004768:Enterotoxins; D029968:Escherichia coli Proteins; C034151:heat stable toxin (E coli); C027538:heat-labile enterotoxin, E coli