从仙人掌梨(仙人掌属植物 ficus-indica ) 的酉分的混合物抽取的优化在用反应的一个倒流系统的皮肤表面方法论

Objective:To extract,quantify,and evaluate the phenolic content in Opuntia ficus-indica skin for their antioxidant capacity with three different methods(ABTS,DPPH,and lipid oxidation)and to optimize the extraction conditions[time,temperature and ethanol concentration)in a reflux system.Methods:The extraction process was done using a reflux system.A San CristobalⅡexperimental design with three variables and three levels was used.The variables evaluated were time of extraction(h),concentration of ethanol(%,v/v)and temperature(°C).The extraction process was optimized using a response surface methodology.Results:It was observed that at higher temperature more phenolic compounds were extracted,but the antioxidant capacity was decreased.The optimum conditions for phenolic compounds extraction and antioxidant capacity mixing the three methods were as Follows:45%of ethanol,80℃and 2 hours of extraction.Values obtained in our results are little higher that other previously reported.Conclusions:It can he concluded the by-products of Opuntia ficus-indica represent a good source of natural antioxidants with possible applications in food,cosmetics or drugs industries.