Biotechnology Letters

, Volume 13, Issue 6, pp 441–444 | Cite as

N-carboxymethylchitosan inhibition of aflatoxin production: Role of zinc

  • R. G. Cuero
  • G. Osuji
  • A. Washington


Aqueous Solutions of N-carboxymethylchitosan (NCMC) suppressed both growth and aflatoxin production byAspergillusflavus andA.parasiticus in submerged culture (Adye and Mateles A&M). Test media were amended with various concentrations of zinc (15, 30, 45, 60 uM), and NCMC solution (0.62 uM). After 8 days incubation NCMC-treated cultures showed marked reduction of aflatoxin production and fungal growth. Enhanced levels of zinc did not overcome the NCMC-mediated inhibition of fungal growth or aflatoxin production.


Zinc Aqueous Solution Organic Chemistry Aflatoxin Bioorganic Chemistry 
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Copyright information

© Science and Technology Letters 1991

Authors and Affiliations

  • R. G. Cuero
    • 1
  • G. Osuji
    • 1
  • A. Washington
    • 1
  1. 1.Cooperative Agriculture Research Center & Dept. of BiologyPrairie view A&M UniversityPrairie ViewUSA

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