Abstrakt: |
APT broth inoculated with Streptococcus thermophiluswas dispensed into epoxy-lined aerosol cans. Twenty five volatile or non-volatile compounds likely to be present in milk were added individually to cans to attain concentrations in broth of 1, 10, 100, and 1000 ppm of each compound. Compounds used included formic, acetic, butyric, hexanoic, octanoic, and decanoic acid; formaldehyde; acetaldehyde; propionaldehyde; glyoxal; acetone; 2-butanone; diacetyl; propyl- and hexylamine; furfurol; methanol; methylsulfide; methylsulfone; methanethiol; ethanethiol; acetonitrile; chloroform; ether; and ethylenedichloride. Bacteria were enumerated at intervals during incubation at 37 C. |