文献类型： 外文期刊

作者： Yang, Dong-Mei ¹ ; Zhu, Xing-Yi ² ; Wang, Qiu-Shuang ³ ; Zhang, Qian ¹ ; Wang, Hui-Li ¹ ; Ying, Tie-Jin ⁴ ;

作者机构： 1.Hangzhou Wanxiang Polytech, Dept Biotechnol, Hangzhou 310023, Zhejiang, Peoples R China

2.Zhejiang Univ Technol, Coll Pharmaceut Sci, Hangzhou 310014, Zhejiang, Peoples R China

3.Guangdong Acad Agr Sci, Tea Res Inst, Guangzhou 510640, Guangdong, Peoples R China

4.Zhejiang Univ, Dept Food Sci & Nutr, Hangzhou 310029, Zhejiang, Peoples R China

关键词： Ferric reducing antioxidant power (FRAP);Lotus rhizome extracts;Optimization;Orthogonal design;Phenol

期刊名称：JOURNAL OF SCIENTIFIC & INDUSTRIAL RESEARCH （ 影响因子：1.056； 五年影响因子：0.925 ）

ISSN： 0022-4456

年卷期： 2012 年 71 卷 3 期

页码：

收录情况： SCI

摘要： This study presents operating factors affecting yield of total phenol and ferric reducing antioxidant power (FRAP) value of extracts from lotus rhizome using orthogonal design experiment (L-9(3(4))) based on single factor experiments. Optimum extraction conditions on yield of total phenol and FRAP value, respectively, were found as follows: ratio of material to liquid, 1 g: 6 ml, 1 g: 8 ml; extraction temperature, 70 degrees C, 50 degrees C; extraction time, 2 h, 0.5 h; and ethanol concentration, 40%, 40%.