摘要
利用超声波水提法从板栗壳中提取多酚类物质,通过探究料水比、超声时间、超声功率和超声温度对板栗壳多酚提取率的影响,优化提取工艺;测定板栗壳多酚提取液总抗氧化能力及其对DPPH·、O_2^-·、ABTS+·、NaNO_2、·OH的清除能力。结果表明,超声波水提板栗壳多酚最优提取工艺条件如下:料液比1∶45(g/mL)、超声时间1 h、超声功率350 W、超声温度65℃;板栗壳多酚总抗氧化能力优于V_C,对5种抗氧化体系均有一定的清除能力,且在一定质量浓度下其对DPPH·、ABTS^+·、NaNO_2和·OH的清除效果优于V_C。因此,板栗壳多酚是一种具有较好抗氧化活性的天然抗氧化剂。
Polyphenols were extracted from chestnut shells by ultrasonic water extraction in this study.The effects of material-water ratio,ultrasonic time,power and temperature on extraction result were investigated.Antioxidant properties of chestnut shell polyphenols were determined through the scavenging ability of DPPHo,O2^-·,ABTS+·,NaNO2,·OH and total antioxidant capacity.Results showed that the optimum extraction parameters were as follows:the ratio of material and water 1∶45(g/mL),ultrasound time 1 h,ultrasound power 350 W,and ultrasound temperature 65℃.The total antioxidant capacity of chestnut shell polyphenols is superior to vitamin C.Besides,chestnut shell polyphenols show good scavenging effect on 5 kinds of antioxidant system.Moreover,scavenging effects on DPPH·,ABTS+·,NaNO2,·OH are better than vitamin C within a certain mass concentration.Therefore,chestnut shell polyphenols have a good antioxidant properties as a natural antioxidants.
作者
王敏
田珍燕
王蔚新
WANG Min;TIAN Zhen-yan;WANG Wei-xin(College of Life Science,Huanggang Normal University,Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains,Key Laboratories of Economic Forest Germplasm Improvement and Comprehensive Resources Utilization of Hubei Province,Huangzhou 438000,Hubei,China)
出处
《食品研究与开发》
CAS
北大核心
2018年第22期66-72,共7页
Food Research and Development
基金
湖北省教育厅中青年项目(Q20112906)
湖北省高等学校优秀中青年科技创新团队项目(T201820)
关键词
板栗壳
多酚
正交试验
抗氧化
chestnut shell
polyphenol
orthogonal experiment
antioxidant
