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首页> 外文期刊>Mycotoxin Research >Purification and characterization of a zearalenone degrading enzyme produced byGliocladium roseum
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Purification and characterization of a zearalenone degrading enzyme produced byGliocladium roseum

机译：玫瑰格里克劳德生产的玉米赤霉烯酮降解酶的纯化和表征

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摘要

Enzymatic inactivation of fungal toxins is an attractive strategy for the decontamination of food and feeding stuff. A constitutively expressed enzyme opening the lactone linkage within the macrocyclic ring system of zearalenone (ZON) was isolated fromGliocladium roseum. The enzyme has been shown to catalyze the transformation of the mycotoxin ZON and therefore has been named ZON degrading enzyme. The resulting products of the enzymatic reaction are less toxic because they have lost their estrogenic capacity. In this study, we used scanning electron microscopy to evaluate the possible mycoparasitism betweenFusarium graminearum andG. roseum. The ZON-degrading enzyme could be isolated fromG. roseum cultures and biochemically characterized. It has been found to be similar to superoxide-dismutases at its N-teminus.
机译：真菌毒素的酶灭活是食品和饲料去污的一种有吸引力的策略。从玉米胶质胶束中分离出在玉米赤霉烯酮（ZON）的大环系统内打开内酯键的组成型表达酶。已显示该酶催化霉菌毒素ZON的转化，因此被称为ZON降解酶。酶促反应产生的产物毒性较小，因为它们失去了雌激素能力。在这项研究中，我们使用扫描电子显微镜来评估禾谷镰刀菌和G之间可能的霉菌寄生性。玫瑰可以从G分离ZON降解酶。玫瑰花文化和生化特征。已经发现它在其N-末端类似于超氧化物歧化酶。

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