2种从苹果渣中提取果胶方法的对比研究  

Contradistinctive Study on Two Methods of Extracting Pectin from Apple Pomace

作　　者：白丽娟[1] 李向东[2] 王晓莹[1] 

机构地区：[1]辽宁医学院食品科学与工程学院,辽宁锦州121001 [2]光明乳业股份有限公司技术中心乳业生物技术国家重点实验室,上海200436

出　　处：《安徽农业科学》2011年第31期19577-19579,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]探讨适合工业化提取苹果渣果胶的工艺。[方法]以同一苹果渣为原料,分别研究盐析法和醇沉法对苹果渣果胶提取的影响。[结果]醇沉法提取果胶的得率较高,为7.85%,且所得果胶纯度高,色泽好,质量优,其最佳工艺条件为酸提液pH 1.5,料液比1∶14,酸提时间1.5 h;盐析法提取果胶的得率为6.14%。[结论]醇沉法适合工业化提取苹果渣中的果胶。[Objective] The research was to discuss techniques of extracting pectin from apple pomace suitable for industrialized production.[Method] With same apple pomace as raw materials,effects of salting-out method and alcohol precipitation method were studied respectively.[Result] The results showed that alcohol precipitation method got higher pectin yield,higher purity,good color and superior quality.Optimum conditions of alcohol precipitation method extraction were： the solution pH extracted by acid 1.5,solid-to-liquid ratio 1∶ 14 and extraction time 1.5 h.The pectin yield of salting-out method was 6.14%.[Conclusion] Alcohol precipitation method was suitable for industrial extracting pectin from apple pomace.

关 键 词：苹果渣 果胶 提取 盐析法 乙醇沉淀法 

分 类 号：S37[农业科学—农产品加工]