Method for extracting and purifying effective parts of peanut shells

The invention provides a method for extracting and purifying effective parts of peanut shells, and belongs to the technical field of natural medicine extraction. The purity of luteolin at the extracted effective parts of the peanut shells reaches 60%. The method specifically comprises the following steps: (1) carrying out extracting with an ethanol aqueous solution under micropressure; (2) concentrating; (3) performing recrystallization; (4) performing column chromatography. The greatest feature of the method is that the operation is simple and economical, requirements on instrument and equipment are low, the production period is short, and the method is suitable for industrial production; only ethanol and water which are used as reagents are adopted, so that the method is safe and reliable, and the obtained effective parts can be directly used for study of peanut shell efficacy or pharmacology.