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A.Flavus Mediated Biotransformations for the Syntheses of Active A-oxyfunctionalized Compounds
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作者 P.Ayhan S.Betul Sopaci A.S.Demir 《复旦学报(自然科学版)》 CAS CSCD 北大核心 2007年第5期739-,共1页
1 Results Biotransformations are enzyme- and whole cell-catalysed conversions of non-natural substrates to products.They are important tools in organic synthesis,especially for the syntheses of chiral molecules,where ... 1 Results Biotransformations are enzyme- and whole cell-catalysed conversions of non-natural substrates to products.They are important tools in organic synthesis,especially for the syntheses of chiral molecules,where the reactions catalysed may be asymmetric syntheses or the resolution of racemates.The main advantages associated with the use of single enantiomer compounds are increased specificity and the avoidance of adverse side effects[1].Whole cell reactions are advantegous over enzyme-catalyzed rea... 展开更多
关键词 a.flavus whole-cell reaction BIOTRANSFORMATION α-hydroxy ketones
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响应面分析用于槟榔储藏条件考察的研究 被引量:3
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作者 刘洪美 孔维军 +1 位作者 胡一晨 杨美华 《世界中医药》 CAS 2015年第8期1129-1132,1138,共5页
探寻 A.flavus 菌株在槟榔原药材中生长及产黄曲霉毒素(AFB1,AFB2,AFG1和 AFG2)的规律,分析槟榔药材的最佳储藏条件。采用响应面分析法(Response Surface Analysis,RSA)结合 Central composite 设计,通过测定染菌后的槟榔中... 探寻 A.flavus 菌株在槟榔原药材中生长及产黄曲霉毒素(AFB1,AFB2,AFG1和 AFG2)的规律,分析槟榔药材的最佳储藏条件。采用响应面分析法(Response Surface Analysis,RSA)结合 Central composite 设计,通过测定染菌后的槟榔中水分含量及总黄曲霉毒素的变化,考察温度(Temp,20~40℃)和湿度(Hum,80%~95%)两个环境因子对药材上 A.flavus菌株产毒的影响,分析该菌株的最适产毒条件。结果发现,储藏后的槟榔水分含量发生了显著的增加;当湿度范围为90%~95%,温度高于25℃时,A.flavus 菌株在槟榔中生长较快并产生大量黄曲霉毒素。研究表明,当储存条件为湿度小于90%,温度低于25℃,槟榔药材在储藏过程中不易霉变产毒,为槟榔储藏规范的制定及降低真菌毒素污染的概率提供了较好的依据。 展开更多
关键词 槟榔 a.flavus 菌株 黄曲霉毒素 响应面分析 储藏
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Research of Seed Testa Structure and Storage Material of Peanut Germplasm with Different Resistance to A. flavus 被引量:1
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作者 SHAN Shi-hua WANG Hai-xia +3 位作者 LI Chun-juan WAN Shu-bo LIU Hong-tao JIANG Guo-yong 《Agricultural Sciences in China》 CAS CSCD 2006年第6期478-482,共5页
There was an obvious relationship between seed testa structure, storage material and resistance to A. flavus of peanut. Results showed that seed testa of peanut germplasm with high resistance (HR) to A. flavus infec... There was an obvious relationship between seed testa structure, storage material and resistance to A. flavus of peanut. Results showed that seed testa of peanut germplasm with high resistance (HR) to A. flavus infection had thicker wax layer, integrated and tight epidermis layer, regular vascular tissue range. However, the seed testa of peanut germplasm with high sensitivity (HS) to A. flavus had the reverse results, and results of those with medium resistance (MR) to A. flavus lay in between, but changes of testa thickness were not significant among different resistance kinds. Results also showed that some seed storage materials were closely related with resistance potential to A. flavus. It seemed that varieties with higher resistance to A. flavus had higher oleic acid and protein content, lower linoleic acid and fat content. Content of palm acid, total sugar and VE did not show positive relationship with the resistance to A. flavus. 展开更多
关键词 peanut germplasm resistance to A. flavus seed testa structure and storage material
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