不同冲泡条件对凤庆大叶种茶树花水提物清除DPPH能力的影响

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Abstract： Using YunnanFengqing large leaf tea flowers as theraw materials and DPPH freeradical scavenging rate as the evaluation index，tea flowers were brewed according to diferent methods to studythe efectofdiferent brewing conditions on DPPH free radical scavenging ability of tea flowers.The optimal brewing conditions for tea flowers were obtained as follows： brewing time of 4 minutes， water temperature of 80∘C ，and solid-liquid ratio of 1：50 .Under these brewing conditions，the antioxidant activity of tea flowers reached its highest level. Keywords： tea flowers， tea antioxidant， brewing process， single factor，response surface method

茶树是我国重要的经济作物之一，具有“结实少、开花多、花期长、寿命短”的特点[12]，茶树花有“安全植物的胎盘”“茶树上的精华”的美誉。（剩余7823字）