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Aflatoxin and kojic acid production by resting cells of Aspergillus flavus link.

Basappa, S. C. and Sreenivasamurthy, V. and Parpia, H. A. B. (1970) Aflatoxin and kojic acid production by resting cells of Aspergillus flavus link. Journal of General Microbiology, 61 (1). 81-86, 8 ref..

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Abstract

Resting Aspergillus flavus synthesized more aflatoxin on a medium with glucose than they did with any other snbstrate tested. D·Xylose and ethanol fostered the formation of kojic acid but not aflatoxin. Yields of kojic acid and aflatoxin responded differently to alteration in temperature, pH, surface-volume ratio of the culture medium, and the presence of various chemicals in the medium. [14C]Acetate as a substrate led to strongly labelled aflatoxin being formed. The simultaneous addition of unlabelled kojic acid did not lower the relative isotope content of the synthesized toxin. On the other hand, addition of unlabelled acetate to medium with [14C]kojic acid did reduce the relative isotope content of the toxin synthesized. It is concluded that the synthesis of kojic acid and aflatoxin follow separate pathways, and that kojic acid is not an intermediate in aflatoxin synthesis by resting cells of A. flavus.

Item Type: Article
Uncontrolled Keywords: toxic metabolites, Aspergillus flavus, kojic acid
Subjects: 600 Technology > 08 Food technology > 09 Food Microbiology
Divisions: Food Microbiology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 20 Mar 2014 09:41
Last Modified: 29 Dec 2016 11:02
URI: http://ir.cftri.com/id/eprint/2760

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