期刊
FOOD CHEMISTRY
卷 184, 期 -, 页码 80-89出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2015.03.047
关键词
Optimization; Response surface methodology; Central composite rotatable design; Ultrasound-assisted system; Total phenolic content; Phosphomolybdenum assay; 2,2-Diphenyl-1-picrylhydrazyl radical scavenging activity
资金
- Ministry of Higher Scientific Research and Information and Communication Technologies of Tunisia
The optimization of antioxidant extraction conditions from a ripe edible fruits of Zizyphis lotus (L) with an ultrasound-assisted system was achieved by response surface methodology. The central composite rotatable design was employed for optimization of extraction parameters in terms of total phenolic content and antioxidant activities using 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity and phosphomolybdenum assay. The optimum operating conditions for extraction were as follows: ethanol concentration, 50%; extraction time, 25 min; extraction temperature, 63 degrees C and ratio of solvent to solid, 67 mL/g. Under these conditions, the obtained extract exhibited a high content of phenolic compounds (40.782 mg gallic acid equivalents/g dry matter) with significant antioxidant properties (the total antioxidant activity was 75.981 mg gallic acid equivalents/g dry matter and the 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity was 0.289 mg/mL). (C) 2015 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据