f Factors Affecting Aflatoxin Production by Aspergillus parasiticus in a Chemically Defined Medium
- Authors: T. V. REDDY*, L. VISWANATHAN†, T. A. VENKITASUBRAMANIAN
- Microbiology, October 1979 114: 409-413, doi: 10.1099/00221287-114-2-409
- Subject: Biochemistry
- Published Online:
Summary: The optimum levels of sucrose, (NH4)2SO4, MgSO4, KH2PO4 and ZnSO4 for aflatoxin production in a chemically defined medium have been established. The last two were found to be essential for fungal growth and aflatoxin production. The effect of various carbon sources on aflatoxin production was tested using the defined medium. Asparagine was found to be essential for aflatoxin production. Very little aflatoxin was produced in the absence of asparagine with any of the other inorganic nitrogen sources tested. Supplementation with yeast extract, Casamino acids, Casitone and peptone increased the aflatoxin yield, but omission of asparagine led to decreased aflatoxin yields even when complex nitrogen sources were present. Asparagine could be replaced by aspartic acid or alanine.
Present address: Section on Carcinogen Metabolism and Toxicology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20014, U.S.A.
Present address: National Sugar Institute, Kanpur, U.P., India.
© Society for General Microbiology 1979 | Published by the Microbiology Society
Article metrics loading...
Full text loading...
Author and Article Information
/content/journal/micro/10.1099/00221287-114-2-409dcterms_title,dcterms_subject,pub_serialTitlepub_serialIdent:journal/micro AND -contentType:BlogPost64
/content/journal/micro/10.1099/00221287-114-2-409dcterms_title,dcterms_subject-pub_serialIdent:journal/micro AND -contentType:BlogPost64
Figure data loading....