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Sandwich enzyme immunoassay of Mucor miehei proteinase (Fromase) in cheese

Published online by Cambridge University Press:  01 June 2009

Pavel Rauch
Affiliation:
Department of Biochemistry and Microbiology, Institute of Chemical Technology, 166 28 Prague 6, Czechoslovakia
Igor Hochel
Affiliation:
Department of Biochemistry and Microbiology, Institute of Chemical Technology, 166 28 Prague 6, Czechoslovakia
Eva Beránková
Affiliation:
Department of Biochemistry and Microbiology, Institute of Chemical Technology, 166 28 Prague 6, Czechoslovakia
Jan Káš
Affiliation:
Department of Biochemistry and Microbiology, Institute of Chemical Technology, 166 28 Prague 6, Czechoslovakia

Summary

Sandwich enzyme immunoassay of Mucor miehei proteinase (from the commercial preparation Fromase) has been developed using horseradish peroxidase as a marker. The enzyme may be determined to a detection limit of 50 ng/ml. Slight cross reactions by chymosin, bovine, porcine and chicken pepsin did not affect the assay. Recovery of Fromase added to cheese extracts varied between 92 and 106%. The method was used for the determination of M. miehei proteinase in different cheese extracts.

Type
Original articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1989

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References

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