【作者】 颜新培； 张亮亮； 张俊； 汪咏梅； 李飞鸣； 徐曼；

【Author】 YAN xin-pei;ZHANG Liang-liang;ZHANG chung;WANG Yong-mei;LI fei-ming;XU Man;The Sericultural Research Institute of Hunan Province;Institute of Chemical Industry of Forest Products, CAF;

【机构】 湖南省蚕桑科学研究所； 中国林业科学研究院林产化学工业研究所；

【摘要】 以14个桑树品种为材料,从品种、叶位两个方面探讨桑叶中的多酚和黄酮类物质的含量变化。不同品种桑叶中总酚和黄酮含量差异较大,其数值分别介于1.941~3.831%与0.484~1.830%之间。桑叶中这两种物质的含量与品种、叶位都有一定的相关性。两种成分在不同叶位之间具有一定的分布规律,总的趋势为叶位以叶质较嫩桑叶两种成分含量较高,并随着叶片的成熟程度增加而两种成分含量呈先降低再上升的趋势。更多还原

【Abstract】 To compare the contents of total phenols and flavonoids in the leaves of mulberry from fourteen varieties,the difference of the contents of total phenols and flavonoids in the leaves of mulberry from different varieties were quite large, the values were between 1.941~3.831% and 0.484~1.830% respectively. There was a certain distribution of the total phenolic and flavonoidcontents in different leaf positions. In all, the contents of these two substances were high in new young leaves and decreased firstly and then increased at the maturity stage.更多还原