UV-C对赤霞珠叶片多酚类物质含量的影响

Effects of UV-C Radiation on the Content of Polyphenol in the Grape Leaves

以酿酒葡萄品种赤霞珠叶片为试材,初步研究了UV-C照射对葡萄叶片多酚类物质含量的影响。结果表明,UV-C照射30 min后,叶片内总酚、总类黄酮、黄烷醇类多酚含量均有所增加,与对照相比,处理后2 h分别提高了2.39%,5.75%,33.16%;处理后4 h分别提高了1.47%,8.74%,18.50%;处理后6 h分别提高了1.53%,10.03%,8.98%;处理后8 h分别提高了1.23%,7.04%,5.13%;处理后10 h分别提高了0.86%,3.31%,0.73%。方差分析表明,总酚含量在处理后2 h差异达到极显著水平;总类黄酮含量在处理后6 h差异达到显著水平;黄烷醇类多酚含量在处理后2,4 h差异达到极显著水平。

In this experiment,the leaves of Vitis vinifera L.cv.Cabernet Sauvignon were used as materials,and the effect of Ultraviolet-C on the concentration of total phenol,total flavonoids,and the flavanols were studied.The results showed that the concentration of total phenol,flavonoids,and flavanols in the leaves was higher than the control.Compared to CK,the concentration of total phenol,flavonoid,and flavanols in the leaves treated with UV-C were increased by 2.39%,5.75%,33.16%; 1.47%,8.74%,18.50%; 1.53%,10.03%,8.98%; 1.23%,7.04%,5.13% and 0.86%,3.31%,0.73% at 2,4,6,8,10 h,respectively.The result of variance analysis indicated that the difference of total phenols at 2 h reached the significance level,the difference of total flavonoids at 6 h was not up to the level of the significance,the difference of flavanols at 2,4 h reached the significant level.