Method for producing edible-level silkworm chrysalis oil by using silkworm chrysalis as raw material

Abstract

The invention discloses a method for producing edible-level silkworm chrysalis oil by using silkworm chrysalis as raw material. The method comprises the following steps of hydraulic cold pressing, spiral cold pressing, and nitrogen-filling standing, so as to obtain crude oil; performing critical CO2 (carbon dioxide) extraction to remove impurities in the crude oil, and extracting unsaturated fattyacid. The method has the beneficial effects that the production technology is simple, the automation degree is high, and the high-purity unsaturated fatty acid can be quickly extracted from the silkworm chrysalis; the extracted unsaturated fatty acid has natural fragrance, the residue of organic solvent is avoided, the content of alpha-linolenic acid is high, the hyperlipidemia can be effectivelyprevented and treated, the regeneration of liver cells is promoted, and the non-alcoholic fatty liver can be prevented and treated.

Description

technical field [0001] The invention relates to the field of extraction of unsaturated fatty acids, in particular to a method for producing edible-grade silkworm chrysalis oil from silkworm chrysalis. Background technique [0002] In the "Dictionary of Traditional Chinese Medicine", it is recorded as follows: silkworm chrysalis oil can cure malnutrition fever, weight loss, and thirst in children; silkworm chrysalis oil is rich in various amino acids, trace elements and n-3 and n-6 ​​series polyunsaturated fatty acids, especially containing Polyunsaturated fatty acids necessary for the human body. At present, the development and research of silkworm chrysalis oil is more focused on reducing plasma and cholesterol, improving liver function, increasing the production of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in the body, And it has the functions of adjusting blood lipid and anti-oxidation; at the same time, silkworm chrysalis contains a lot of amino acids, ...

AI Technical Summary

Problems solved by technology

[0003] At present, the methods for extracting silkworm chrysalis oil mainly include solvent leaching and solvent pressing, but these methods have certain defects.

Silkworm chrysalis is a high-protein, high-fat material with low crude fiber content and relatively soft texture, so it is difficult to extract oil by solvent pressing, and the yield of silkworm chrysalis oil is also very low.

The solvent extraction method is not affected by the softness and hardness of the oil texture. After the oil is properly pretreated and a suitable solvent is selected, the oil can be extracted. However, the current solvent extraction method generally uses dichloromethane, acetone, etc. Larger single solvent extracts silkworm chrysalis oil, which not only pollutes greatly, but also has low yield, which is unfavorable for industrialized production; Crude oil), but the demand for solvent is large and the consumption time is long