Aflatoxin: Scientific Background, Control, and Implications by Leo A. Goldblatt

By Leo A. Goldblatt

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The organism grew on several carbon sources from which aflatoxin was not produced. e. acetate plus shikimate) have so far been unsuccessful (Searcy, 1967). 2. NITROGEN The influence of various nitrogen sources on aflatoxin production has been studied by Eldridge (1964, 1965), Mateles and Adye (1965), Schroeder (1966), and Davis et al. (1967). The results are summarized in Table V. The ability to use inorganic nitrogen for production of high yields of aflatoxin apparently depends on the strain of the fungus used and/or the composition of the nutrient solution.

B and other natural substrates has generally been established at substrate moistures in equilibrium with 70 % RH, at which very few fungi will grow. Excellent reviews (Semeniuk, 1954; Scott, 1957) have pointed out the significance of RH or the equivalent equilibrium moisture content of ii. AFLATOxiN FORMATION BY Aspergillus flavus 27 natural substrates to growth and sporulation by A. flavus and other fungi. Aspergillas flavus is classified as a mesophyte on the basis of having a minimum moisture requirement for growth between 80 and 90 % relative vapor pressure or RH (Galloway, 1935; Panassenko, 1944).

Botany 14, 198. Borut, S. , and Joffe, A. Z. (1966). Aspergillus flavus Link and other fungi associated with stored groundnut kernels in Israel. IsraelJ. Botany 15, 112-120. Brian, P. , Dawkins, A. , Grove, J. , Hemming, H. , and Norris, G. L. F. (1961). Phytotoxic compounds produced by Fusarium equiseti. J. Exptl. Botany 12, 1-12. Brown, W. (1922). On the germination and growth of fungi at various temperatures and in various concentrations of oxygen and of carbon dioxide. Ann. Botany 36,257-283.

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