醇溶性枸杞子提取物的提取工艺研究  

Extraction of Alcohol-Soluble Extract from Wolfberry

作　　者：张继斌 陈志元 江丹 徐浪 丁苗 梅菊 

机构地区：[1]劲牌生物医药有限公司,中药保健食品质量与安全湖北省重点实验室,湖北大冶435100

出　　处：《酿酒科技》2017年第1期48-51,54,共5页Liquor-Making Science & Technology

摘　　要：研究醇溶性枸杞提取物的提取工艺条件,使提取物易溶于酒体中且枸杞多糖含量成分的损失最小。采用水提醇沉和直接醇提2种提取方式,每种提取方式分别采用脱脂、去小分子等不同的前处理方式进行组合,分别得到不同条件下的枸杞提取物。将提取物溶于酒体中,采用活性炭处理后,计算枸杞多糖成分的损失率,并观察酒体的稳定性。结果表明,采用60%vol乙醇直接醇提得到的提取物,在酒体溶解过程及活性炭处理过程中的枸杞多糖成分损失最小,其枸杞多糖成分的提取率为1.85%。醇溶性枸杞提取物最佳提取工艺为采用60%vol乙醇直接提取浓缩干燥,溶于酒体中可有效减少成分的损失。In order to dissolve wolfberry extract in liquor and obtain the minimum loss of polysaccharide, the extraction conditions of alcohol-soluble wolfberry extract were investigated in this study. Two extraction methods including water extracting-alcohol precipitation and direct alcohol extraction were adopted. Different pretreatment methods such as defatting and small molecule-removing were applied for each extraction method. Then wolfberry extract under different conditions was obtained. The extract was dissolved in liquor, after the treatment of active carbon, the loss rate of polysaccharide was calculated and the stability of liquor was observed. The results suggested that, the extract obtained from 60 % ethanol direct extraction had the least loss of polysaccharide in the process of dissolution and active carbon treatment （the extraction rate of polysaccharide was 1.85 %）. Accordingly, the best extraction method of alcohol-soluble wolfberry extract was the use of 60 % ethanol for direct extraction, which could effectively reduce the loss of polysaccharide.

关 键 词：枸杞提取物 醇溶性 提取工艺 枸杞多糖 提取率 

分 类 号：TS262.3[轻工技术与工程—发酵工程] TS201.2[轻工技术与工程—食品科学与工程]