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Efficient removal of ginkgotoxin from the Ginkgo biloba seeds powder by combining endogenous enzymatic hydrolysis with resin adsorption
Journal of the Science of Food and Agriculture ( IF 3.3 ) Pub Date : 2020-09-15 , DOI: 10.1002/jsfa.10778
Wen Zhang 1, 2 , Minmin Zou 1, 2 , Rong Wu 1, 2 , Huijuan Jiang 1 , Fuliang Cao 2 , Erzheng Su 1, 2, 3
Affiliation  

BACKGROUND Ginkgotoxin including 4'-O-methylpyridoxine (MPN) and MPN-5'-glucoside (MPNG) is responsible for Ginkgo seeds food poisoning. The purpose of this work is to prepare detoxified Ginkgo seeds powder and retain the nutritional and functional components of Ginkgo seeds powder to the maximum extent meantime. RESULTS Resin adsorption technology was firstly employed to remove the ginkgotoxin from the water extract of Ginkgo seeds powder. Under the optimal conditions, the adsorption efficiency of the optimal resin for MPN could attain to 100%, and that for MPNG could only attain to 85.4 ± 0.93%. Resin adsorption alone could not effectively remove MPN and MPNG simultaneously. Endogenous enzymatic hydrolysis was next attempted to transform the MPNG to MPN. The MPNG could be completely hydrolyzed to MPN by the endogenous enzyme(s) at 40 °C and pH 5.0 in 180 min. The ginkgotoxin only in the form of MPN in the enzymatic hydrolysate was then adsorbed with resin and the conditions were statistically optimized. The adsorption efficiency of MPN attained to 98.89 ± 0.99% under the optimized conditions. CONCLUSIONS Ginkgotoxin removed by combining endogenous enzymatic hydrolysis with resin adsorption could preserve the main nutritional and functional components of Ginkgo seeds powder to the most extent, and could not change its main characteristics. The ginkgotoxin removal method developed in this work is a relatively simple and efficient approach. This article is protected by copyright. All rights reserved.

中文翻译:

内源性酶解结合树脂吸附有效去除银杏籽粉中的银杏毒素

背景技术包括4'-O-甲基吡哆醇(MPN)和MPN-5'-葡萄糖苷(MPNG)的银杏毒素是导致银杏种子食物中毒的原因。本工作的目的是制备无毒银杏籽粉,同时最大限度地保留银杏籽粉的营养成分和功能成分。结果首次采用树脂吸附技术去除银杏籽粉水提物中的银杏毒素。在最佳条件下,最佳树脂对MPN的吸附效率可以达到100%,而对MPNG的吸附效率只能达到85.4±0.93%。单独的树脂吸附不能有效地同时去除 MPN 和 MPNG。接下来尝试内源酶水解将 MPNG 转化为 MPN。MPNG 可以在 40 °C 和 pH 5.0 下在 180 分钟内被内源性酶完全水解为 MPN。然后用树脂吸附酶水解产物中仅以 MPN 形式存在的银杏毒素,并对条件进行统计优化。在优化条件下MPN的吸附效率达到98.89±0.99%。结论内源性酶解与树脂吸附相结合去除银杏毒素能最大程度地保留银杏籽粉的主要营养成分和功能成分,且不会改变其主要特性。在这项工作中开发的银杏毒素去除方法是一种相对简单有效的方法。本文受版权保护。版权所有。然后用树脂吸附酶水解产物中仅以 MPN 形式存在的银杏毒素,并对条件进行统计优化。在优化条件下MPN的吸附效率达到98.89±0.99%。结论内源性酶解与树脂吸附相结合去除银杏毒素能最大程度地保留银杏籽粉的主要营养成分和功能成分,且不会改变其主要特性。在这项工作中开发的银杏毒素去除方法是一种相对简单有效的方法。本文受版权保护。版权所有。然后用树脂吸附酶水解产物中仅以 MPN 形式存在的银杏毒素,并对条件进行统计优化。在优化条件下MPN的吸附效率达到98.89±0.99%。结论内源性酶解与树脂吸附相结合去除银杏毒素,能最大程度地保留银杏籽粉的主要营养成分和功能成分,且不会改变其主要特性。在这项工作中开发的银杏毒素去除方法是一种相对简单有效的方法。本文受版权保护。版权所有。结论内源性酶解与树脂吸附相结合去除银杏毒素能最大程度地保留银杏籽粉的主要营养成分和功能成分,且不会改变其主要特性。在这项工作中开发的银杏毒素去除方法是一种相对简单有效的方法。本文受版权保护。版权所有。结论内源性酶解与树脂吸附相结合去除银杏毒素能最大程度地保留银杏籽粉的主要营养成分和功能成分,且不会改变其主要特性。在这项工作中开发的银杏毒素去除方法是一种相对简单有效的方法。本文受版权保护。版权所有。
更新日期:2020-09-15
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