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Serological identification of Streptococcus salivarius subsp. thermophilus

Published online by Cambridge University Press:  01 June 2009

Maher A. Nour ,
Gamal Abdel-Tawab ,
Samir Shalaby  and
Osama A. Mohamed
Maher A. Nour
Affiliation:
Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
Gamal Abdel-Tawab
Affiliation:
Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
Samir Shalaby
Affiliation:
Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
Osama A. Mohamed
Affiliation:
Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
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Summary

Streptococcus salivarius subsp. thermophilus (Str. thermophilus) has no group-specific antigen. HC1 extracts of 551 strains of streptococci isolated from cheese or yogurt (123 Str. thermophilus and 428 Enterococcus faecalis – Ent. faecium spp.) were examined with three type-specific antisera prepared against representatives of Str. thermophilus and also with Lancefield group D antisera. All typical (80) or atypical (43) strains of Str. thermophilus reacted with at least one type-specific antiserum and none of the enterococci reacted. Only two strains reacted with both type-specific and group antisera.

Type
Original articles
Information
Journal of Dairy Research , Volume 56 , Issue 5 , November 1989 , pp. 779 - 783
Copyright
Copyright © Proprietors of Journal of Dairy Research 1989

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References

REFERENCES

Abd-El-Malek, Y. & Gibson, T. 1948 Studies in the bacteriology of milk. 1. The streptococci of milk. Journal of Dairy Research 15 233–248CrossRefGoogle Scholar
Deibel, R. H. & Seeley, H. W. 1974 Streptococcaceae fam. nov. In Bergey's Manual of Determinative Bacteriology, 8th edn, pp. 490–509 (Eds Buchanan, R. E. and Gibbons, N. E.). Baltimore, MD: Williams & Wilkins Co.Google Scholar
Lancefield, R. C. 1933 A serological differentiation of human and other groups of haemolytic streptococci. Journal of Experimental Medicine 57 571–595CrossRefGoogle Scholar
Naylor, J. & Sharpe, M. E. 1958 Lactobacilli in Cheddar cheese. 1. The use of selective media for isolation and of serological typing for identification. Journal of Dairy Research 25 92–103CrossRefGoogle Scholar
Nour, M. A. 1972 [Antigenic properties of Streptococcus thermophilus.] PhD thesis, Moscow Technical Institute of Meat and Dairy Products, USSRGoogle Scholar
Nour, M. A., Abd El-Tawab, G. & Shalaby, S. O. 1983 Further studies on Str. thermophilus type antigens. Egyptian Journal of Dairy Science 11 13–18Google Scholar
Nour, M. A., Shalaby, S. O., Abd El-Tawab, G. & Mohamed, O. A. 1986 Physiological properties of Streptococcus thermophilus strains isolated from dairy products. Egyptian Journal of Dairy Science 14 135–141Google Scholar
Ottogalli, G. & Galli, A. 1978 [Methods for the enumeration, isolation and identification of Streptococcus thermophilus in dairy products.] Annali di Microbiologia ed Enzimologia 28 91–110 (Dairy Science Abstracta 42 865)Google Scholar