目的 优选从豆制品下脚料中提取大豆皂苷的最佳提取工艺条件。方法 通过正交试验 ,以紫外分光光度法测定总皂苷含量为指标 ,对提取工艺进行考察。结果 影响回流提取的主要因素为乙醇浓度 ;影响渗漉提取的因素依次为乙醇浓度、溶媒量和渗漉速度。结论 最佳提取工艺条件为 8倍量 60 %乙醇 ,热回流 1次 2.5 h。

ObjectTo optimize the process for the recovery of soyasapo nins from bean product waste. Methods Conditions for the recovery were studied by orthogonal design g uided by the yield of soyasapo nins as determined by UV abso rbance. Results The most influential factor in the recovery by refluxing was the concent ration of alcohol; while in the recovery by percolation the influential factors were in the order of concent ration of ethylalcohol, amount of alcohol used and the rate of percolation. ConclusionThe optimal recovery process was found to be a sing lereflux with eight times of 60% alcohol for 2. 5 h.

广西自治区卫生厅1999年青年基金课题