吸附法提取二氢槲皮素的研究

Study on extraction of dihydroquercetin by adsorbing

以落叶松木屑为原料,以水为溶剂,聚酰胺为吸附剂提取二氢槲皮素,考察了提取温度、提取时间、液料比、聚酰胺添加量等因素对提取率的影响,通过单因素分析和正交试验设计确定了最佳提取条件:提取温度90℃、提取时间1h、液料比18∶1、聚酰胺添加量为原料的23%,在此条件下二氢槲皮素的提取率为0.814%。

Dihydroquercetin was effectively extracted from larch by adsorbing. The key factors including the extraction temperature, extraction time, the ratio between water and material, and the amount of polyamide are all studied. By using single factor and orthogonal test, the optimal conditions were identified： extraction temperature 90~C, extraction time lh, the ratio of liquid to solid 18：1, and the amount of polyamide for 23% of material. Under the optimal condition, the extraction yield of dihydroquercetin from larch can reach 0.814%.