摘要
采用HPLC方法研究贮藏条件(贮藏温度、光照)对葡萄酒中四种白藜芦醇异构体含量的影响,发现:1)高温贮藏条件引起白藜芦醇总量的降低,其中反式白藜芦醇减少了45.8%;2)日光照射引起白藜芦醇含量的降低,而灯光照射后白藜芦醇总量未见明显降低;3)光照具有促进白藜芦醇向白藜芦醇糖苷转化的趋势。实验结果证明高温贮藏不利于葡萄酒中白藜芦醇的保存,商业流通中的灯光照射对葡萄酒中白藜芦醇含量无明显影响。
The effect of storage conditions including storage temperature and sunlight on four resveratrol isomers in wine was determined by HPLC. The results showed that： l,hight storage temperature （37℃） caused the decrease of resveratrol, especially the trans-resveratrol reduced by 45.8%; 2. sunlight caused decrease of resveratrol but daylight lamp had no effect on it; 3, there was a trend to change resveratrol into pieceid by light, So high storage temperature were disadvantageous for resveratrol preserving and lamplight during commercial circulation had little effect on the resveratrol of wine.
出处
《中外葡萄与葡萄酒》
2005年第6期9-12,共4页
Sino-Overseas Grapevine & Wine
