【Objective】This research was conducted to provide a new technique for the research on biosynthetic metabolism of flavonoid glycoside and evaluation and selection of leaf-purpose resources in Ginkgo biloba L.【Method】Based on the principle that UFGT catalyses the reaction of quercetin with UDP-glucose which produces quercetin glycoside and uridine diphosphate,the optimized system consisted of the suitable pH,temperature,substrate concentration and reaction time.UFGT activities in leaves of male plants during ...
银杏(Ginkgo biloba L.)叶片中有效成分含量丰富,具重要的药用、保健和防治病虫害等作用[1-4],其黄酮类化合物是银杏主要的有效成分之一[5-6]。目前,从银杏中已分离出槲皮素(quercetin)、山奈黄素
图1植物类黄酮糖基化反应循环模式Fig.1 The reactive cycle model of plant
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