红葡萄复合果汁饮料不同储存条件下酚类物质、理化指标及抗氧化性变化

The Beverage Industry(2017)

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Abstract
本文研究了红葡萄复合果汁饮料在不同储存条件(4、25、37、55℃、日光照、LED灯照)下总酚、总黄酮、原花青素、吸光值、浊度、色差的变化情况.总酚、总黄酮相对比较稳定,原花青素在55℃条件下有明显下降,色差在55℃条件下明显增加,浊度在55℃条件下储存20d时明显增加.DPPH自由基清除率达75.9%,且在55℃储存20d后DPPH清除率仍可达到69.3%.
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