食品工业科技2017，Vol.38Issue(22)：167-172,6.DOI:10.13386/j.issn1002-0306.2017.22.033
天浆壳多酚的提取工艺优化及其抗氧化活性评价
Optimization of extraction process of polyphenols from fruit shell of Metaplexis japonica(Thunb.)Makino and evaluation of its antioxidant activity
摘要
Abstract
Objective:To determine the optimum extraction process of polyphenols from fruit shell of Metaplexis japonica (Thunb.) Makino and preliminarily evaluate its antioxidant activity.Method:On the basis of single factor experiments,the extraction conditions of polyphenols were optimized by response surface methodology with the content of polyphenols as index.The antioxidant capacity was measured by reducing power,scavenging of hydroxyl radicals and DPPH.Result:The optimum extraction conditions were as follows:ethanol concentration(v/v) was 42％,ratio of liquid to solid was 16∶1 (mL/g),extraction temperature was 61 ℃ and extraction time was 64 min.Under the conditions,the extraction amount of polyphenols was (26.86 ± 0.37) mg/10 g.The polyphenols had certain reducing power.When the concentration of polyphenols was 1 mg/mL,the clearance rate on hydroxyl radicals and DPPH· was 70.78％ and 85.22％,respectively.Conclusion:The optimized technology was feasible and the polyphenols had certain antioxidant capacity.关键词
天浆壳/多酚/响应面法/抗氧化活性Key words
shell of Metaplexis japonica (Thunb.) Makino/polyphenols/response surface methodology/antioxidant activity分类
轻工纺织引用本文复制引用
崔錾,吕芳,王天一,张富强,郭斌,韩冠英,李敏,白雨鑫..天浆壳多酚的提取工艺优化及其抗氧化活性评价[J].食品工业科技,2017,38(22):167-172,6.基金项目
国家自然科学基金项目(81302681) （81302681）
国家科技型中小企业技术创新基金项目(14C26242100741) （14C26242100741）
辽宁省大学生创新训练项目(201510160000004 （）
201510160000016). （）
