Method for selectively extracting amygdalus communis oils and fats using cohesive energy density method

The present invention discloses a method for selectively extracting amygdalus communis oils and fats using a cohesive energy density method. By using a reverse thinking, firstly selection ranges of solvents are determined based on the principles of similarity and intermiscibility, and nucleophilicity and electrophilicity, then the cohesive energy density values of the target components and solvents are calculated using the cohesive energy density method, the ratios of the extracting solvents are determined, and finally the accuracy and stability of the ratios of the extracting solvents are verified by experiments. The extracting solvents are prepared quantitatively according to the cohesive energy density values of the target components and solvents, and therefore the empirical and uncertain selection of the extracting solvents is overcome. Besides, the technology determined by using optimization methods overcomes the traditional empirical and uncertain selection of the extracting solvents, and thereby the method for selectively extracting the amygdalus communis oils and fats using the cohesive energy density method is obtained. The method has the characteristics of being able to determine the extracting solvents accurately, extract the target components selectively, determine the extracting process conveniently and quickly, effectively reduce development costs, shorten the cycle of research trials, etc., and is innovative in theoretical application and broad practicability.