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. 1977 Jun;33(6):1275-7.
doi: 10.1128/aem.33.6.1275-1277.1977.

Analysis of ochratoxin B alone and in the presence of ochratoxin A, using carboxypeptidase A

K Hult, E Hökby, S Gatenbeck

Analysis of ochratoxin B alone and in the presence of ochratoxin A, using carboxypeptidase A

K Hult et al. Appl Environ Microbiol. 1977 Jun.

Abstract

A method is described for ochratoxin B analysis, which is adapted to the earlier described method of ochratoxin A analysis, using carboxypeptidase A (K. Hult and S. Gatenbeck, J. Assoc. Off. Anal. Chem. 59:128-129, 1976). The fluorescence spectra of ochratoxins A and B coincide too much to allow direct discrimination of the two compounds. A method using the differences in kinetic parameters of the enzymatic hydrolysis of the two compounds is suggested for the analysis of mixtures of the ochratoxins.

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References

    1. Life Sci I. 1972 May 15;11(10):503-8 - PubMed
    1. J Assoc Off Anal Chem. 1976 Jan;59(1):128-9 - PubMed
    1. Food Cosmet Toxicol. 1972 Jun;10(3):389-94 - PubMed

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