摘要
以红藜麦为材料,采用超声辅助水浸提法提取藜麦多酚,通过单因素试验探究物料粒度、液料比、提取时间和提取温度对藜麦多酚提取率的影响。运用响应面法优化提取工艺条件,确定室温条件下超声辅助水浸提藜麦多酚的最佳工艺条件为物料粒度80目、液料比100∶1(mL/g)、提取时间20 min,在此条件下,藜麦多酚提取率达0.53%。对所得藜麦多酚进行抗氧化分析,发现其具有较强的DPPH自由基清除能力和总抗氧化能力。
Taking red Chenopodium quinoa Willd.as the materials,the ultrasonic-assisted extraction method was applied to extract polyphenols from Chenopodium quinoa Willd..The effects of particle size of material,the ratio of liquid to material,the extraction time and the extraction temperature on the extraction rate of polyphenols from Chenopodium quinoa Willd.were investigated by single-fac⁃tor test.The response surface methodology was used to optimize ultrasonic-assisted water extraction of polyphenols from Chenopodium quinoa Willd.at room temperature and obtained the optimum conditions as follows:The particle size of 80 meshes,the ratio of liquid to material 100∶1(mL/g),and the extraction time of 20 min.Under the optimum conditions,the extraction rate of polyphenols reached to 0.53%.The antioxidant analysis showed that the obtained polyphenols from Chenopodium quinoa Willd.extracts demonstrated strong DPPH scavenging capacity and total antioxidant capacity.
作者
朱孔飞
吴榕珍
吴子威
程丽娜
宋茹
ZHU Kong-fei;WU Rong-zhen;WU Zi-wei;CHENG Li-na;SONG Ru(School of Food and pharmacy,Zhejiang Ocean University,Zhoushan 316022,Zhejiang,China)
出处
《湖北农业科学》
2021年第24期173-177,共5页
Hubei Agricultural Sciences
基金
浙江省大学生科技创新活动计划暨新苗人才计划项目(2020R411014)。
关键词
藜麦多酚
超声辅助提取
响应面法
抗氧化
polyphenols from Chenopodium quinoa Willd.
ultrasonic-assisted extraction
response surface methodology
antioxida⁃tion
