地形对品丽珠葡萄果实中多酚物质及其抗氧化活性的影响

Analysis of polyphenolic content and antioxidant capacity of Cabernet Franc berries in different terrain conditions

以品丽珠葡萄果实为研究对象,通过对其基本理化指标、抗氧化能力及多酚组成和含量进行检测,比较地形对葡萄果实中多酚物质及其抗氧化活性的影响。结果表明:平地和坡地条件下品丽珠果实中各酚类物质总量互有高低;平地果实的抗氧化能力强于坡地果实;在2种地形的品丽珠果皮中共检出17种单体花色苷(即12种花色苷衍生物和5种花色苷基本体);地形对果皮花色苷单体物质的组成没有影响,但对其含量存在不同程度的影响;坡地果皮中5种基本花色苷单体的含量均高于平地果皮。葡萄园的地形因素对果实中多酚类物质组成和含量及抗氧化活性造成不同程度的影响。

To understand the difference in the phenolic compounds and antioxidant activities of Cabernet Franc berries where were from two different terrain vineyards in the Loess Plateau region,the physicochemical index,antioxidant activities,the phenolic composition and concentration of grape samples were determined.The results showed that the different kind of phenolic compound contents of grape berries were not uniform variation law; The antioxidant activities of slope land berries was lower than the flat land berries; The total 17 individual anthocyanin compounds were identified in flat and slope land berries（including 12 anthocyanin deriatives and 5 basic anthocyanins）; Terrain conditions had no effect on anthocyanin composition,but had effect on anthocyanin concentration in different extent; The concentration of 5 basic anthocyanins from slope land vineyard berries were higher than flat land berries.So the terrain condition of vineyard could really influence the phenolics composition and content,antioxidant activity of Cabernet Franc berries.