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Identification of compounds causing symbiotic growth of Streptococcus thermophilus and Lactobacillus bulgaricus in milk*

Published online by Cambridge University Press:  01 June 2009

Emma S. Bautista
Affiliation:
Department of Food Science, North Carolina State University, Raleigh
R. S. Dahiya
Affiliation:
Department of Food Science, North Carolina State University, Raleigh
M. L. Speck
Affiliation:
Department of Food Science, North Carolina State University, Raleigh

Summary

Strains of Lactobacillus bulgaricus and Streptococcus thermophilus isolated from yoghurt culture were used to study the cause of the synergistic effect on acid production by mixtures of the 2 cultures. The beneficial effect was essentially limited to the gradual accumulation of factors in the L. bulgaricus cultures that promoted more rapid acid production by Str. thermophilus. The active factors were identified as glycine and histidine.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1966

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References

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