葡萄密度对所酿酒酚类物质含量及抗氧化活性的影响研究

Study on the Effect of Grape Density on Phenolic Content and Antioxidant Activities of Wine

为探究葡萄密度对所酿葡萄酒酚类物质含量及抗氧化活性的影响,以收获期巨峰葡萄为研究材料,根据葡萄密度大小将其分级后进行发酵,探究不同密度葡萄所酿葡萄酒酚类物质含量及抗氧化活性的差异,结果表明:收获期巨峰葡萄的密度为1063~1140kg/m ^(3),随着葡萄密度的提高,所酿葡萄酒中总酚、总黄酮、总黄烷-3-醇、总花色苷含量呈上升趋势。随着葡萄密度的提高,所酿葡萄酒的抗氧化能力提高。

In order to explore the effect of grape density on phenolic content and antioxidant activities of wine,Kyoho grape in harvest period was used as the research material.According to the grape density,Kyoho grape was graded and fermented to explore the difference between the phenolic content and antioxidant activities of wine with different density.The results show that the density of Kyoho grapes at harvest is 1063 to 1140kg/m^(3),and the contents of total phenols,total flavonoids,total flavane-3-ol and total anthocyanins increase with the grape density.It's antioxidant capacity increas with the grape density.