Preparation method of low-acid-value rice bran oil with rich sterol ester
A technology rich in sterol esters and rice bran oil, which is applied in the fields of fat oil/fat refining, fat oil/fat production, fat production, etc., can solve the problems of high oil yield, cumbersome refining process, and hidden safety hazards of organic solvents, and achieve oil destruction Small, improved refining rate, no solvent residue effect
Inactive Publication Date: 2017-03-22
ANHUI PROVINCE YINGSHANG COUNTY SANJIN GRAINS ANDOILS CO LTD
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Problems solved by technology
The organic solvent leaching method has a high oil yield, but the use of organic solvents has potential safety hazards, and the refining process is too cumbersome
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment
[0023] A kind of preparation method of the rice bran oil of low acid value that is rich in sterol ester, is prepared by the raw material of following parts by weight (g):
[0024] Rice bran 62, alkaline protease 12, activated clay 10, activated carbon 5, immobilized lipase 3, phytosterol 5, 4Å-sodium molecular sieve 2, appropriate amount of distilled water.
[0025] A method for preparing rice bran oil with low acid value rich in sterol esters, characterized in that, the following steps are carried out:
[0026] a. Pass the rice bran through a 50-mesh sieve, add water to adjust the moisture content to 20%, put it into a heat-resistant plate, spread it to a thickness of 5cm and spread it evenly, put it in a microwave oven, heat it at 800-900W for 180s, take it out, and cool it to room temperature ,spare;
[0027] b. Place the material obtained in a in supercritical CO 2 In the extraction device, at 50-60°C, CO 2 Extract for 2 hours at a flow rate of 50-60kg / h and a pressure ...
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Abstract
The invention discloses a preparation method of low-acid-value rice bran oil with rich sterol ester. The preparation method is characterized in that rice bran, basic protein enzyme, activated clay, active carbon, immobilized lipase, plant sterol, a 4-sodium molecular sieve and others are used as raw materials. An aqueous enzymatic method is adopted for extracting grease in the rice bran, the technology for extracting the grease by the adoption of the aqueous enzymatic method is safe and environmentally friendly, and the obtained plant oil is free of pollution; the activated clay and the active carbon are added for decoloring the rice bran oil; a supercritical CO2 extraction technology has the advantages of being high in extracting rate, good in selectivity, simple in process, free of solvent residues and others, refining process procedures of the rice bran oil can be simplified, and the refining rate of the rice bran oil can be increased; by the adoption of a molecular distillation technology, the rice bran oil is subjected to deacidification treatment, and the molecular distillation technology is a grease deacidification technology and has the advantages of being low energy consumption, small in damage to grease, clean and the like; the low-acid-value rice bran oil contains the rich sterol ester.
Description
technical field [0001] The invention relates to a preparation method of rice bran oil, in particular to a preparation method of low-acid-value rice bran oil rich in sterol esters. Background technique [0002] my country is the largest rice producer in the world. Rice bran is an important by-product in the rice processing process, and rice bran has a high oil content and is an important oil source. As a new type of natural vegetable oil, rice bran oil contains a variety of special active ingredients that are beneficial to health. Rice bran oil has the functions of improving immunity, lowering cholesterol, regulating blood lipids, preventing arteriosclerosis, etc., and has high nutritional value. Rice bran oil is increasingly valued and favored by consumers due to its rich nutritional value and health care functions. [0003] Xie Ying used fresh rice bran as raw material in her master's thesis "Research on the Production and Refining Process of Rice Bran Oil", aiming at opt...
Claims
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IPC IPC(8): C11B1/02C11B1/04C11B1/10C11B1/16C11B3/00C11B3/14
CPCC11B1/025C11B1/04C11B1/104C11B1/16C11B3/001C11B3/008C11B3/14
Inventor 金荣珍金永王方甫
Owner ANHUI PROVINCE YINGSHANG COUNTY SANJIN GRAINS ANDOILS CO LTD