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A high composition of phosphatidylcholine (PC) and phosphatidylethanolamine (PE) was simultaneously extracted from soybean lecithin by using a mixed solvent consisting of ethanol and chloroform. The addition of chloroform in ethanol improved the total extraction yield to give high a composition of PC and PE. Thus, the best extraction yield (52%) of PC and PE was achieved at an ethanol/chloroform ratio...
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