中国食品学报2012，Vol.12Issue(10)：155-162,8.
不同采收期对梅尔诺葡萄和葡萄酒酚类物质及抗氧化活性的影响
Effect of Harvest Time on Phenolic Composition and Antioxidant Activity of Merlot Grape and Wine
摘要
Abstract
The optimal harvest time is an essential problem facing most winemakers and wineries in the whole vini-fication process. The optimal harvest time of Merlot in Xiangning County, Shanxi Province, was confirmed using the principal component analysis by studying the effect of harvest time on phenolic contents and antioxidant activity of grape berries and corresponding wine. The results showed that the grape harvested on Sep. 30 had the highest amount of total phenol, total flavonoid, total flavanol and total monomeric anthocyanin, and had the strongest DPPH scavenging capacity and cupric reducing power; the grape harvested on Oct. 6 had the strongest potassium ferricyanide reducing power and hydroxyl radical scavenging activity. With respect to wines, the wine with grape harvested on Oct. 6 had the highest amount of total phenol, total flavonoid and total flavanol, the strongest DPPH scavenging capacity, cupric reducing power and potassium ferricyanide reducing power; the wine with grape harvested on Oct. 9 had the highest amount of total monomeric anthocyanin and the strongest hydroxyl radical scavenging activity. And it was confirmed that the optimal harvest time of Merlot grape in this region is about October 6～9.关键词
梅尔诺/采收期/酚类物质/抗氧化活性/主成分分析Key words
Merlot/ harvest time/ phenols/ antioxidant activity/ principal component analysis引用本文复制引用
孟江飞,杨学威,房玉林,张会宁,张振文,龚镭,姜娇..不同采收期对梅尔诺葡萄和葡萄酒酚类物质及抗氧化活性的影响[J].中国食品学报,2012,12(10):155-162,8.基金项目
国家葡萄产业技术体系(CARS-30-zp-9) （CARS-30-zp-9）
