荞麦中黄酮含量的研究

A Study on the Flavone Content of Buckwheat

荞麦花中的黄酮含量最高 ,平均含量达 7 4 % ,开花后逐渐下降 ;其次是叶 ,黄酮的平均含量为 5 3% ,并在开花期达到最高峰 ,后期下降 ;茎中的含量较低 ,平均值为 1 0 % ,生育期中无明显变化。籽粒中 ,以苦荞的黄酮含量高 ,平均值为 2 0 2 % ,甜荞的黄酮含量平均值仅为 0 2 3%。放射线对荞麦进行辐射可使其黄酮含量增加。荞麦中黄酮化合物的形成主要受苯丙氨酸解氨酶 (PAL)

The highest flavone content of buckwheat is in its flowers, and the mean value is as high as 7 4%. After flowering, the value will decrease gradually. The flavone content of buckwheat leaves is lower, and its mean value is 5 3%, and its highest peak appears at the stage of flowering, then decreases slowly. The flavone content of buckwheat stems is the lowest, and its mean value is 1 0%, without obvious change in the whole growth of the plant. Among the buckwheat grains, tartarty buckwheat grains contain the highest flavone content, and the mean value is 2 02%. The mean flavone content value in common buckwheat is only 0 23%. Radiative treatment can increase the flavone content of buckwheat. The formation of flavonid compounds of buckwheat is mainly controlled by PAL activity.