摘要
以哈密大枣为原料,以总糖、可溶性固形物含量为指标,通过正交试验确定哈密大枣汁的浸提工艺,并对哈密大枣提取物的抗氧化活性进行了研究。结果表明:当料液比为1∶11,浸提温度为70℃,浸提时间为60m in时,在此条件下,浸提所得的枣汁中可溶性固形物含量为6.7%,总糖含量为12%;哈密大枣提取物有一定的清除DPPH的作用,与Vc相比,哈密大枣提取物对DPPH的清除效果要差,但哈密大枣提取物的抗氧化能力较Ve强。
Taking total sugar content and soluble solid content as target,the technology parameters of extracting jujube juice and extracts antioxidant activity from hami-jujube are studied by orthogonal experimentions.The optimum conditions of extraction technology is obtained as follows： the optimal ratio of liquid to material was 11（11∶1）,the optimal extraction temperature was 70℃,the optimal extraction time was 60min,Under the conditions,the soluble solid content is 6.7% and total sugar content reaches 12%;The Vc have more powerful scavenging efficiency to DPPH free than extracts from hami-jujube,but the antioxidant activity of extracts from hami-jujube was stronger than Ve.
出处
《包装与食品机械》
CAS
2011年第3期12-15,48,共5页
Packaging and Food Machinery
关键词
枣汁
提取
抗氧化
正交试验
jujube juice
extraction
antioxidant activity
orthogonal test
