Supercritical carbon dioxide extraction process for extracting microbe oil

Abstract

The invention relates to an extraction method of supercritical carbon dioxide extraction of microbial oil. The present invention uses inactivated microbial cells produced by fermentation as raw materials, adopts the method of supercritical carbon dioxide extraction, first extracts and then analyzes to obtain microbial oil, or adopts supercritical carbon dioxide extraction and implements one or more pressure mutations during the extraction process method to extract the microbial oil. The oil extracted by the present invention has good quality, high yield, and no solvent residue; less production steps, short cycle, low energy consumption, and no environmental pollution; and does not destroy other effective nutrients of its by-product microbial low-fat thallus and its Applications in food, feed and other industries.

Description

technical field

[0001] The invention relates to an extraction method for supercritical carbon dioxide extraction of microbial oil containing long-chain polyunsaturated fatty acids (PUFA) required for human growth and health maintenance. Background technique

[0002] Long-chain polyunsaturated fatty acids are closely related to human nutrition, and essential fatty acids are essential fatty acids for normal growth and development and maintenance of health. Since humans lack the ability to synthesize double bonds at Omega3 and Omega6 positions, they can only be obtained from diet. Omega3 precursor linolenic acid and Omega6 precursor linoleic acid are called essential fatty acids (EFA). Docosahexaenoic acid (DHA) and arachidonic acid (AA) are long-chain polyunsaturated fatty acids contained in the human body. The essential fatty acids linoleic acid and linolenic acid are the precursors for the synthesis of AA and DHA respectively. It can be synthesized by the action of desatur...

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