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Utilization of citrate by lactobacilli isolated from dairy products

Published online by Cambridge University Press:  01 June 2009

T. F. Fryer
T. F. Fryer
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading
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Summary

Twenty-five strains of lactobacilli isolated from dairy products, including Lactobacillus casei, Lactobacillus plantarum and Lactobacillus brevis species, were grown in semi-defined media and examined for their ability to ferment citrate and produce formate. Of 7 strains of L. casei, all utilized citrate to varying extents, as did 9 of 10 strains of L. plantarum and 3 of 8 strains of L. brevis. L. casei produced 19–35% of the theoretical yield of formate from the citrate utilized, L. plantarum 0–11% and L. brevis 0–28%. Of 2 strains of L. casei tested for their abilities to ferment citrate in the presence of 2% lactose, strain C 5 was unaffected by lactose whereas strain C 2 showed a 45% decrease in the citrate utilized. However, lactose used at 2% concentration greatly reduced formate production by L. casei C 5, which produced 62% of the theoretical yield of formate from citrate after 35 days in the absence of lactose and only 8% in its presence. The yield of diacetyl produced by L. casei C 5 from citrate plus lactose (both at 2% concentration) was 145 times that produced from citrate alone, and 800 times that from lactose alone.

Type
Original Articles
Information
Journal of Dairy Research , Volume 37 , Issue 1 , February 1970 , pp. 9 - 15
Copyright
Copyright © Proprietors of Journal of Dairy Research 1970

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References

REFERENCES

Campbell, J. J. R. & Gunsalus, I. C. (1942). J. Bact. 44, 721.Google Scholar
Christensen, M. D. & Pederson, C. S. (1958). Appl. Microbiol. 6, 319.CrossRefGoogle Scholar
de Man, J. C. (1956). Ned. Melk- en Zuiveltijdschr. 10, 240.Google Scholar
de Man, J. C., Rogosa, M. & Sharpe, M. E. (1960). J. appl. Bact. 23, 130.CrossRefGoogle Scholar
Eggleton, P., Elsden, S. R. & Gough, N. (1943). Biochem. J. 37, 526.CrossRefGoogle Scholar
Gasser, F. (1964). Annls Inst. Pasteur, Paris 106, 778.Google Scholar
Gibson, T. & Abdel-Malek, Y. (1945). J. Dairy Res. 14, 35.CrossRefGoogle Scholar
Harvey, R. J. & Collins, E. B. (1961). J. Bact. 82, 954.CrossRefGoogle Scholar
Hungate, R. E. (1950). Bact. Rev. 14, 1.CrossRefGoogle Scholar
Keddie, R. M. (1959). J. appl. Bact. 22, 403.Google Scholar
Keenan, T. W. & Lindsay, R. C. (1968). J. Dairy Sci. 51, 188.CrossRefGoogle Scholar
Marier, J. R. & Boulet, M. (1958). J. Dairy Sci. 41, 1683.CrossRefGoogle Scholar
van den Hamer, G. J. A. (1960). Ph.D. Thesis, Utrecht.Google Scholar
Wood, H. G. & Gest, H. (1957). Meth. Enzym. 3, 287.Google Scholar