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Production of Aflatoxin on Soybeans

机译:在大豆上生产黄曲霉毒素

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Probable factors influencing resistance to aflatoxin synthesis in soybeans have been investigated by using cultures of Aspergillus parasiticus NRRL 3240. Soybeans contain a small amount of zinc (0.01 μg/g) bound to phytic acid. Autoclaving soybeans at 15 pounds (6803.88 g) for 15 min increases the aflatoxin production, probably by making zinc available. Addition of zinc to both autoclaved and nonautoclaved soybeans promotes aflatoxin production. However, addition of varying levels of phytic acid at a constant concentration of zinc depresses aflatoxin synthesis with an increase in the added phytic acid. In a synthetic medium known to give good yields of aflatoxin, the addition of phytic acid (10 mM) decreases aflatoxin synthesis.
机译:已通过使用寄生寄生曲霉NRRL 3240的培养物研究了影响大豆抗黄曲霉毒素合成的可能因素。大豆含有少量与植酸结合的锌(0.01μg/ g)。 15磅(6803.88克)高压灭菌大豆15分钟,可能会增加锌的含量,从而提高黄曲霉毒素的产量。在高压灭菌和非高压灭菌的大豆中都添加锌可促进黄曲霉毒素的生产。然而,以恒定浓度的锌添加不同水平的植酸会降低黄曲霉毒素的合成,并增加所添加的植酸。在已知能产生良好黄曲霉毒素产量的合成培养基中,添加植酸(10 mM)会降低黄曲霉毒素的合成。

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