茶叶黄酮类物质的双水相系统纯化及抗氧化研究OA北大核心CSCDCSTPCD
Study on Extraction by Aqueous Two-phase System and Anti-oxidation of Flavonoids from Tea
采用PEG/盐的双水相系统纯化茶叶黄酮,探究萃取机理及其抗氧化活性.以茶叶为原料,茶叶黄酮得率为指标；采用单因素和响应面法试验设计,研究PEG的种类和用量、盐的种类和用量、温度、pH对茶叶黄酮提取率的影响,根据Box-Behnken中心组合方法进行3因素(Na2SO4的质量分数、PEG600、MgCl2添加量)3水平的试验设计,进行响应面(RSM)分析.通过分析还原力和DPPH体系,评估不同浓度黄酮的抗氧化活性,并与参照抗氧化剂BHT和Vc…查看全部>>
To explore antioxidation capability and the extraction mechanism of the separation-purification of flavonoids from tea in aqueous two-phase systems, flavonoids from tea was taken as an index, to optimize the conditions for the extraction of flavonoids from tea, the effect of each factor such as weight and amounts of PEG, kinds and amounts of salt, temperature, pH have been studied by single factor and response surface methodology. Based on the single factor …查看全部>>
吴祥庭;王爱银;周化斌;李国兴;徐姗姗
浙江温州大学生命与环境科学学院,浙江温州325000浙江温州大学化学与材料工程学院,浙江温州325000浙江温州大学生命与环境科学学院,浙江温州325000浙江温州大学化学与材料工程学院,浙江温州325000浙江温州大学生命与环境科学学院,浙江温州325000
轻工纺织
茶叶黄酮双水相体系响应面法抗氧化
tea fiavnoid aqueous two-phase system response surface analysis anti-oxidation
《茶叶科学》 2012 (4)
289-296,8
浙江省科技厅项目(No.2010C32005)
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