|
|||||
|
|
| 老鹰茶总黄酮的提取工艺及抗氧化活性研究 | |
| 引用本文： | 计红芳,南海娟,张令文,杨铭铎,张恒.老鹰茶总黄酮的提取工艺及抗氧化活性研究[J].中国食品添加剂,2011(2). |
| 作者姓名： | 计红芳 南海娟 张令文 杨铭铎 张恒 |
| 作者单位： | 1. 河南科技学院食品学院,新乡,453003 2. 河南科技学院食品学院,新乡,453003;哈尔滨商业大学中式快餐研发中心博士后科研基地,哈尔滨,150076 3. 哈尔滨商业大学中式快餐研发中心博士后科研基地,哈尔滨,150076 |
| 基金项目： | 国家人事部留学回国人员择优资助项目，河南科技学院高层次人才科研项目 |
| 摘 要： | 以老鹰茶为原料,槲皮素为对照品,总黄酮含量为考核指标,研究了老鹰茶总黄酮的水浴提取工艺,同时对总黄酮提取物的抗氧化活性进行了探讨.在提取温度、时间、溶剂浓度、料液比等单因素的基础上,通过正交实验,确定老鹰茶总黄酮的最佳工艺条件为:提取温度60℃,提取时间90min,乙醇浓度70%,液固比35:1.在此条件下,测得的老鹰茶总黄酮得率为6.190%(以槲皮素计).老鹰茶总黄酮的抗氧化活性结果表明,老鹰茶总黄酮对DPPH自由基具有较强的清除活性,其EC50值为18.17μg/mL;老鹰茶总黄酮具有较强的还原能力,其EC50值为77.521μg/mL.老鹰茶总黄酮具有较强的抗氧化活性,是一种潜在的具有抗氧化功能食品原料. |
| 关 键 词： | 老鹰茶 总黄酮 水浴提取 抗氧化活性 |
Extraction and antioxidant properties of total flavonoids from Litsea Coreana L. |
|
| JI Hong-fang,NAN Hai-juan,ZHANG Ling-wen,YANG Ming-duo,ZHANG Heng.Extraction and antioxidant properties of total flavonoids from Litsea Coreana L.[J].China Food Additives,2011(2). | |
| Authors: | JI Hong-fang NAN Hai-juan ZHANG Ling-wen YANG Ming-duo ZHANG Heng |
| Affiliation: | JI Hong-fang1,NAN Hai-juan1,ZHANG Ling-wen1,2,YANG Ming-duo2,ZHANG Heng1(1.School of Food Science,Henan Institute of Science and Technology,Xinxiang 453003,2.Postdoctoral Research Base of the Chinese Fast Food Research and Development Center,Harbin University of Commerce,Harbin 453003) |
| Abstract: | The extraction conditions of the water bath technology of total flavonoids from Litsea coreana L.was studied.The effects of temperature,extracting time,ethanol volume fraction and ratio of liquid to material on extraction effect of total flavonoids were discussed.Simultaneously,the antioxidant prosperities of total flavonoids extracts were discussed.The optimum extraction conditions of total flavonoids by using orthogonal experiment based on single factor were obtained as follows:ethanol solvents 70%,ratio ... |
| Keywords: | Litsea coreana L total flavonoids extraction technique of water bath antioxidant properities |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |