Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-23T02:49:14.807Z Has data issue: false hasContentIssue false

Effect of the addition of extracts of thermophilic lactobacilli on acid production by Streptococcus thermophilus in milk

Published online by Cambridge University Press:  01 June 2009

Denis H. Hemme
Affiliation:
Institut National de la Recherche Agronomique, CNRZ, F 78350 Jouy-en-Josas, France
Véronique Schmal
Affiliation:
Institut National de la Recherche Agronomique, CNRZ, F 78350 Jouy-en-Josas, France
Jean E. Auclair
Affiliation:
Institut National de la Recherche Agronomique, CNRZ, F 78350 Jouy-en-Josas, France

Summary

Soluble extracts of 20 strains of thermophilic lactobacilli (Lactobacillus helveticus, L. lactis and L. bulgaricus) were prepared and added to milk for the culture of 10 strains of Streptococcus thermophilus. Acid production was stimulated in 64·5% of cases for 9 of these 10 strains. The L. helveticus extracts were the most stimulatory, but the same extracts did not always strongly stimulate each strain of Str. thermophilus. The stimulatory effects observed varied with the volume of extract and the strain of Str. thermophilus. The exception was Str. thermophilus 385, which was never stimulated. The stimulatory effects observed were due to aminopeptidases present in the lactobacillus extracts and were not related to a general caseinolytic activity. The possible addition of such extracts to milk for cooked hard cheese is discussed.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1981

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Accolas, J. P., Bloquel, R., Didibnnb, R. & Regnier, J. (1977). Lait 57, 123.CrossRefGoogle Scholar
Accolas, J. P., Hemme, D., Desmazeaud, M. D., Bouillanne, C., Vassal, L. & Veaux, M. (1980). Lait 60 487524.CrossRefGoogle Scholar
Accolas, J. P., Veaux, M. & Auclair, J. (1971). Lait 51, 249272.CrossRefGoogle Scholar
Accolas, J. P., Veaux, M., Vassal, L. & Mocquot, G. (1978). Lait 58, 118132.CrossRefGoogle Scholar
Bracquart, P. & Lorient, D. (1979). Milchwissenschaft 34, 676679.Google Scholar
Desmazeaud, M. & Devoyod, J. -J. (1970). Annates de Biologie Animale, Biochimie, Biophysique 10, 413430.CrossRefGoogle Scholar
Desmazeaud, M. J. & Hermier, J. H. (1972). European Journal of Biochemistry 28, 190198.CrossRefGoogle Scholar
Desmazeaud, M. J. & Jugé, M. (1976). Laité 56, 241260.CrossRefGoogle Scholar
El Soda, M., Bergère, J.-L. & Desmazeaud, M. (1978 a). Journal of Dairy Research 45, 519524.CrossRefGoogle Scholar
El Soda, M. A., Desmazeaud, M. J. & Bergère, J. -L. (1978 b). 20th International Dairy Congress, Paris E, 475476.Google Scholar
Garvie, E. I. & Mabbitt, L. A. (1956). Journal of Dairy Research 23, 305314.CrossRefGoogle Scholar
Hemme, D. & Nardi, M. (1980). Lait 60, 375392.CrossRefGoogle Scholar
Hemme, D., Nardi, M. & Jette, D. (1980a).Lait 60 (In the Press.)Google Scholar
Hemme, D., Vassal, L., Foyen, H. & Auclair, J. (1979). Lait 59, 597614.CrossRefGoogle Scholar
Hemme, D., Wahl, D. & Nardi, M. (1980b). Lait 60, 111129.CrossRefGoogle Scholar
Huhtanen, C. N. & Williams, W. L. (1963). Applied Microbiology 11, 2022.CrossRefGoogle Scholar
Koburger, J. A., Speck, M. L. & Aurand, L. W. (1963). Journal of Bacteriology 85, 10511055.CrossRefGoogle Scholar
Lowry, O. H., Rosebrouoh, N. J., Farr, A. L. & Randall, R. J. (1951). Journal of Biological Chemistry 193, 265275.CrossRefGoogle Scholar
Mocquot, G. (1979). Journal of Dairy Research 46, 133160.CrossRefGoogle Scholar
Nath, K. R. & Wagner, B. J. (1973). Applied Microbiology 26, 4955.CrossRefGoogle Scholar
O'LEARY, V. S. & Woychik, J. H. (1976 a). Applied and Environmental Microbiology 32, 8994.CrossRefGoogle Scholar
O'LEARY, V. S. & Woychik, J. H. (1976 b). Journal of Food Science 41, 791793.CrossRefGoogle Scholar
Ottooalli, G., Galli, A. & Dellaglio, F. (1979). Journal of Dairy Research 46, 127131.CrossRefGoogle Scholar
Shankar, P. A. & Davies, F. L. (1978 a). 20th International Dairy Congress, Paris E, 467468.Google Scholar
Shankar, P. A. & Davies, F. L. (1978 b). 20th International Dairy Congress, Paris E, 514515.Google Scholar
Smith, J. S., Hillier, A. J., Lees, G. J. & Jago, G. R. (1975). Journal of Dairy Research 42, 123138.CrossRefGoogle Scholar
Thompson, M. P. & Brower, D. P. (1974). Journal of Dairy Science 57, 598.CrossRefGoogle Scholar
Thompson, M. P. & Gyuricsek, D. M. (1974). Journal of Dairy Science 57, 584.CrossRefGoogle Scholar
Tourneur, C. (1972). Lait 52, 149174.CrossRefGoogle Scholar