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Increased formation of carbonyl compounds in milk fat by mutants of lactic acid bacteria



Increased formation of carbonyl compounds in milk fat by mutants of lactic acid bacteria



Milchwissenschaft 36(5): 266



4 mutants, obtained by UV irradiation of Streptococcus lactis subsp. diacetylactis, and 1 mutant each of Lactobacillus casei and L. bulgaricus (obtained by gamma -irradiation) were examined for carbonyl production after incubation at 37 deg C for 48 h in cows' milk. Total carbonyls produced by each of the 4 S. lactis mutants were 24.7, 25.7, 31.4 and 46.2 mu mol/g fat vs. 24.1 mu mol/g fat for the parent strain.

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Increased formation of carbonyl compounds of milk fat by mutants of lactic acids bacteria. Milchwissenschaft = Milk science international 36(5): 266, 1981

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