摘要
以松针水提液为研究对象,采用分光光度法,以羟自由基清除率为指标,通过正交实验优化了微波功率,微波处理时间,氯化钠百分含量等因素对松针水提液抗氧化活性的影响。结果表明,微波功率对松针水提液的抗氧化性影响最大,氯化钠百分含量影响最小;最优实验条件为微波处理功率420 W,微波辐射时间3 min,氯化钠百分含量4%,在此条件下羟自由基清除率达到94. 17%。
The effects of microwave power,microwave treatment time and sodium chloride percentage on the antioxidant activity of pine needle water extract were optimized by orthogonal test by using spectrophotometry with hydroxyl radical scavenging rate as index.The results showed that microwave power had the greatest effect on the antioxidant activity of pine needle water extract and the smallest effect on the content of sodium chloride.The optimum experimental conditions were 420 W microwave power,3 min microwave radiation time and 4% sodium chloride content.Under these conditions,the hydroxyl radical scavenging rate reached 94.17%.
作者
李静
李博雅
张莲姬
LI Jing;LI Bo-ya;ZHANG Lian-ji(Department of Chemistry,College of Science,Yanbian University,Jilin Yanji 133002;Chemical National Experimental Demonstration Center,Yanbian University,Jilin Yanji 133002,China)
出处
《广州化工》
CAS
2019年第8期50-52,共3页
GuangZhou Chemical Industry
关键词
松针水提液
微波辅助
抗氧化活性
pine needle water extract
microwave-assisted
antioxidant activity
