?用有机溶剂法

In order to extract soybean oil soybean lecithin feet, with an organic solvent, after concentrated, acetone de-oil, ethanol extract, such as activated carbon adsorption bleaching process on the extraction conditions of the system to do experiments on the various process parameters on the extraction yield and purity of the influence, through the testing and inspection of documents and other methods, comprehensive discussion, results showed that the acetone off the oil temperature and time, ethanol extraction temperature and time are the main factors affecting extraction efficiency.