摘要
以单性木兰枝为原材料,采用超声波辅助法对其多酚进行提取,通过响应面试验优化提取工艺条件,并从总抗氧化性、对DPPH·和·OH的清除作用3个方面研究了单性木兰枝多酚的抗氧化活性。结果表明,单性木兰枝多酚的最佳提取条件为丙酮浓度67%,液固比22∶1(mL/g),提取时间20 min,该条件下多酚得率为1.45%。单性木兰枝多酚具有一定的总抗氧化活性,但对DPPH·和·OH具有良好的清除能力。
The extraction of polyphenols from the branches of Magnolia kwangsiensis figlar&noot.(M.kwangsiensis)was studied by ultrasonic-assisted extraction.The extraction condition was optimized by response surface methodology.The antioxidant activities of M.kwangsiensis branch polyphenols were evaluated in aspect of total antioxidant activity,DPPH·scavenging activity and·OH scavenging effect.Results showed the optimum conditions were acetone concentration 67%,liquid-solid ratio 22(mL/g),extraction time 20 min,and the yield of polyphenols reached 1.45%.The polyphenols from the branches of M.kwangsiensis had certain total antioxidant activity,but had good scavenging effects on DPPH·and·OH.
作者
郑燕菲
张强
蓝亮美
许建本
黄秋萍
林依娜
ZHENG Yan-fei;ZHANG Qiang;LAN Liang-mei;XU Jian-ben;HUANG Qiu-ping;LIN Yi-na(College of Chemistry and Chemical Engineering,Guangxi Normal University for Nationalities,Chongzuo,Guangxi 532200,China;Faculty of Pharmacy,Guangxi University of Chinese Medicine,Nanning,Guangxi 530022,China;Department of Electrical and Automotive Engineering,Liuzhou City Vocational College,Liuzhou,Guangxi 545036,China)
出处
《食品与机械》
北大核心
2020年第5期175-181,共7页
Food and Machinery
基金
广西民族师范学院科研项目(编号:2017BS001)
广西教育厅2018年广西高校中青年教师基础能力提升项目(编号:2019KY0769)
广西教育厅2019广西高校中青年教师基础能力提升项目(编号:2019KY0763)。
关键词
单性木兰枝
多酚
超声波辅助提取
抗氧化
Magnolia kwangsiensis figlar&noot.branch
polyphenols
ultrasonic-assisted extraction
antioxidant
