Growth and Acid-Producing Properties of Lactic Acid Bacteria Isolated from Cured Fish

doi:10.7506/spkx1002-6630-201211032

Abstract

Abstract: Gompertz model was applied to fit the curves of growth and pH of five lactic acid bacterial strains isolated from cured fish with the purpose of analyzing the growth and acid-producing properties of lactic acid bacteria. The results indicated that Gompertz model could fit the growth and pH curves with high accuracy. Five lactic acid bacterial strains presented similar adaptability in the lag phase. The growth rates and acid productivities of Pediococcus acidilactici and Lactobacillus alimentarius were much higher than those of other strains. Meanwhile, both strains revealed the highest balanced total bacterial count and lowest balanced pH. Moreover, a significant correlation between the pH of the culture medium and total lactic acid bacteria count was observed.

Key words: lactic acid bacteria, Gompertz model, growth curve, acid-producing curve

CLC Number:

TS254.4

XIEJing，XIONGShan-bai，ZENGLing-bin，ZHAOSi-ming. Growth and Acid-Producing Properties of Lactic Acid Bacteria Isolated from Cured Fish[J]. FOOD SCIENCE, 2012, 33(11): 147-150.

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Growth and Acid-Producing Properties of Lactic Acid Bacteria Isolated from Cured Fish

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