Method for comprehensively extracting and refining perilla oil

Abstract

The invention discloses a method for comprehensively extracting and refining perilla oil. The method includes the following steps of smashing of perilla seeds, double-screw extruding-expansion, smashing, enzyme supplementation hydrolysis, centrifugal separation, low-temperature pressing and oil refining. By the adoption of the double-screw extruding-expansion procedure, the factors affecting oil quality such as nutrition ingredient loss caused by uneven preprocessing and high temperature generated by traditional unpeeling and frying procedures can be avoided; by the adoption of an aqueous enzymatic method, the expanded materials are processed for follow-up pressing, and the oil quality can be greatly improved. The aqueous enzymatic method and a pressing method are combined, chemical solvent residues brought by traditional refinement are avoided, and the method has the advantages that environment friendliness and safety are achieved, and damage to effective ingredients is low.

Description

technical field [0001] The invention relates to the field of oil processing, in particular to a method for comprehensively extracting and refining perilla oil. Background technique [0002] Perilla is an annual herb of Labiatae, also known as Sumahong and Red Suma, which are distributed all over my country. Perilla leaf has the functions of relieving the exterior and dispelling cold, promoting qi and harmonizing the middle, relieving cough and asthma, sharpening the diaphragm and widening the intestines, and detoxifying all kinds of poisons. Modern nutrition has found that the main components of perilla oil are α-linolenic acid, palmitic acid, linoleic acid, oleic acid, stearic acid, vitamin E, 18 kinds of amino acids and various trace elements, among which essential fatty acids are particularly rich in human body. Perilla oil is the edible vegetable oil with the highest content of α-linolenic acid (a-LNA) known so far. The quality of perilla seed oil is the best, and the c...

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Problems solved by technology

[0003] At present, there are relatively few studies on the extraction process of perilla oil at home and abroad, and the traditional pressing method or solvent extraction method is generally used, such as a "process for preparing perilla oil by low-temperature pressing" disclosed in patent 200510018450.4 and patent application 01107031.5 The published "A Method for Extracting Perilla Oil from Perilla Seeds by Pressing with Controlled Temperature at Normal Temperature" does not deviate from the traditional pressing and solvent extraction methods, and all of them have the disadvantages of low oil yield, complex process operation, and large equipment investment. problem, and the obtained oil is crude oil, which requires secondary refining or refining by traditional refining technology. In the refining process, not only chemical solvents need to be introduced, but also the refining process is quite complicated.

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