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. 1967 Sep;15(5):1025–1030. doi: 10.1128/am.15.5.1025-1030.1967

Growth Response of Lactobacillus brevis to Aeration and Organic Catalysts1

J R Stamer 1, B O Stoyla 1
PMCID: PMC547135  PMID: 16349721

Abstract

Under stationary and anaerobic conditions, greater cell yields of Lactobacillus brevis were obtained from autoclaved than from filter-sterilized glucose media. Fructose, tentatively identified as a product generated by the heating process, served as an excellent catalyst for inducing growth. The addition of micromolar quantities of pentoses or potential pentose precursors to the filter-sterilized medium was equally effective in stimulating growth. These organic catalysts were not essential for growth under aerobic conditions. Upon agitation, similar cell yields were obtained from the autoclaved and filter-sterilized media. The micromolar quantities of lactic acid produced per micromole of carbohydrate fermented appeared to be similar under aerobic and static conditions of incubation. The final concentration of acetic acid increased as the result of agitation. This increase in volatile acidity was accompanied by a significant decrease in ethyl alcohol production. The cell yield was increased nearly 50% under aerobic conditions.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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