摘要
紫罗兰蜜薯中富含花青素,采用有机试剂浸提法提取紫罗兰蜜薯中的花青素。花青素实验室提取工艺的优化使用了单因素和L_(9)(3^(4))正交试验,并通过测定花青素对DPPH自由基和ABTS自由基的清除能力验证了花青素的抗氧化功能。结果表明,在本实验条件下,紫罗兰蜜薯中花青素最佳提取工艺为:乙醇质量浓度50%,原料:提取试剂比1∶30(g∶mL),浸提时间45 min,在此条件下花青素提取率为6.42%,且花青素对DPPH自由基和ABTS自由基具有较强的清除能力。
Anthocyanins are secondary metabolites that widely existed in fruits and vegetables such as violet sweet potato,organic reagent extraction method was used to extract anthocyanins from violet sweet potato in this study.the extraction process was optimized by single factor experiments and L_(9)(3^(4))orthogonal test,and the antioxidant activity of the extracted anthocyanins was evaluated by measuring the scavenging ability of DPPH free radical and ABTS free radical.As showed in the results,the best extraction process of anthocyanin from sweet potato was:the concentration of ethanol was 50%,raw material to reagent ratio of 1∶30(g∶mL),extract for 45 min.The extraction rate of anthocyanin under these conditions was 6.42%,and the obtained anthocyanin had strong scavenging ability of DPPH hydroxyl radical and ABTS free radical.
作者
刘翠翠
郭钰洁
李正浩
樊子扬
杨轶洋
王新光
Liu Cuicui;Guo Yujie;Li Zhenghao;Fan Ziyang;Yang Yiyang;Wang Xinguang(Taiyuan Institute of Technology,Taiyuan 030008,China)
出处
《山东化工》
CAS
2024年第11期61-63,68,共4页
Shandong Chemical Industry
基金
2023年大学生创新创业训练项目(S202314101099)
2023年大学生创新创业训练项目(GK2023107)
山西省高等学校科技创新项目(2022L541)
山西省人才引进项目(2022LJ008)。
关键词
紫罗兰蜜薯
花青素
单因素试验
正交试验
抗氧化活性
violet sweet potato
anthocyanins
single factor experiment
orthogonal test
antioxidant activity