银杏叶片色素含量与黄酮含量关系的研究

STUDY ON THE RELATIONSHIP BETWEEN THE FLAVONOIDS AND PIGMENTS IN GINKGO BILOBA LEAF

对银杏极短枝叶片叶绿素、花青苷和黄酮含量进行全周期测定 ,结果表明 :黄酮含量分别于 1999 0 7 0 4和 1999 11 0 1达到高峰 ,其中后 1次峰值较大、持续时间较长 ;叶绿素含量于 1999 0 6 13达到最高峰后一直呈下降趋势 ;花青苷含量变化趋势与黄酮类似 ,但波动幅度较黄酮大。用MicrosoftExcel软件对数据统计分析 ,黄酮与花青苷显著正相关 ,与叶绿素显著负相关。回归方程为 :Y(叶黄酮 ) =2 2 0 95 5 8- 0 772 2X′1 (叶绿素 ) +0 4343X′2 (花青苷 ) ,回归模型经F测验达 1%显著水平。

The concentrations of chlorophyll, anthocyanin and flavonoid in \%Ginkgo biloba\% leaf were assayed in 1999. The results indicate that there are two peaks of flavonoid content, one on July 4 and the other that has greater value on Nov.1. Chlorophyll shows a declining trend after reaching its peak value on June 13. Anthocyanin shares a similar trend with flavonoid, but its curve fluctuates larger than that of flavonoid. With the help of Microsoft Excel to deal with data, there is a significantly positive relationship between flavonoid and anthocyanin, a significantly negative relationship between flavonoid and chlorophyll.The regression equation, Y (flavonoid)=220 9558-0 7722 X ′ 1 (chlorophyll)+0\^4343 X ′ 2 (anthocyanin), is statistically significant at the 1% level. How to regulate the flavonoid concentration on the physiological and biochemical viewpoints is discussed.