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175 results about "GAMMA ORYZANOL" patented technology

Overview Information Gamma oryzanol is a substance that is taken out of rice bran oil. It is also found in wheat bran and some fruits and vegetables.People use it as medicine.

Method for extracting oryzanol from rice bran crude oil

The invention discloses a method for extracting oryzanol from rice bran crude oil. The method comprises the following steps: (1) preparing four-stage rice bran oil: (a) performing hydration, degumming and dewaxing on the rice bran crude oil, (b) decolorizing the dewaxed rice bran oil and (c) performing physical refining on the decolorized rice bran oil; (2) extracting crude oryzanol, namely (a) preparing a soap base, (b) performing alkali dissolution operation and (c) performing acidification operation; and (3) refining the crude oryzanol, namely (a) re-dissolving the crude oryzanol and performing solvent oil liquid-liquid washing, (b) performing acidification and acid soaking and (c) drying and crushing the oryzanol. According to the method disclosed by the invention, a physical refining and deacidification process is applied to an alkali dissolution and acidification oryzanol production process, the first alkali refining operation in the existing process is reduced, the yield of the rice bran refined oil is improved, and the loss of 20% of the oryzanol produced by soapstock due to the alkali refining is also reduced. As the physical refining and deacidification process is adopted, the yield of the refined rice bran oil is greatly improved in comparison with the existing alkali dissolution and acidification process, and the yield of essential oil is improved from the original 50-55% to 60-65%.
Owner:郑州良远科技有限公司

Production method of gamma-oryzanol

The invention discloses a production method of gamma-oryzanol. The production method comprises the steps: pouring filter residues in a dissolving tank; adding methanol, mixing, then adding hexane, and stirring; adding acetic acid, neutralizing, and carrying out stirring reflux; heating to 50 DEG C in a water bath, heating up, and carrying out stirring reflux; adding water, continuing to stir, and then allowing to stand for an hour; precipitating to obtain a crude product gamma-oryzanol; allowing the solution to be automatically layered, wherein an upper layer is a hexane solution and a lower layer is a crude product gamma-oryzanol precipitate and a methanol dissolving layer; shunting the upper layer and the lower-layer methanol dissolving layer; carrying out water-bath heating of the lower layer; carrying out reduced pressure filtration on the crude product gamma-oryzanol precipitate and the methanol dissolving layer after water-bath heating, wherein a filter paper upper layer is crude gamma-oryzanol; adding hexane to crude gamma-oryzanol precipitated particles, and washing out impurities which can be dissolved in hexane; and collecting gamma-oryzanol precipitated particles, and drying at low temperature. The method reduces the methanol use amount, the added hexane solvent can be recycled, the purity of the crude product gamma-oryzanol is improved, and the filtration time is shortened.
Owner:XIAMEN UNIV OF TECH

Method for preparing natural ferulic acid by taking nigre containing oryzanol as raw material

The invention relates to a method for preparing natural ferulic acid by taking nigre containing oryzanol as a raw material. The method comprises the following steps: hot-dissolving and filtering alkali alcohol, carrying out acid precipitation separation, decolorizing an organic solvent at normal temperature, carrying out hot reflux hydrolysis on the alkali alcohol, carrying out cold precipitationseparation, acidifying, carrying out cold standing desalination, refining with an ultrafiltration membrane, decolorizing aluminum oxide, recovering the solvent, carrying out solid-liquid separation, drying and the like. According to the method, the content of oryzanol in the raw materials is increased to 50-70wt%, then the oryzanol is subjected to thermal dissolution, reflux and hydrolysis by using an alkali alcohol solvent, and high-purity pure white natural ferulic acid is obtained through the synergistic effect of oryzanol purification and decoloration before hydrolysis and ferulic acid alcohol solution refining and decoloration after hydrolysis. The process disclosed by the invention has the remarkable advantages of high yield, high purity and complete decolorization; compared with high-temperature concentrated alkali hydrolysis, the reaction is mild, the alkali concentration is low, the use amount is small, and conversion is complete; the production process is simple and low in cost; the product meets the requirements of natural vanillin on the naturalness of raw materials internationally, and obvious economic and social benefits are created.
Owner:HUNAN HUACHENG BIOTECH

Spleen-invigorating black chocolate and preparation method thereof

The invention discloses spleen-invigorating black chocolate. The spleen-invigorating black chocolate is made from the following raw materials in parts by weight: 380-390 parts of cocoa butter, 30-32 parts of linseed oil, an appropriate amount of immobilized lipidase, an appropriate amount of edible alcohol, 3-4 parts of chitosan, 20-21 parts of shelled corn, 0.2-0.3 part of lactic acid bacteria, 4-5 parts of tomato paste, 2-3 parts of lotus seeds, 3-4 parts of gordon euryale seeds, 2-3 parts of dried orange peel, 4-5 parts of fiveleaf gynostemma herb, 170-180 parts of cocoa powder, 380-390 parts of white granulated sugar, 50-55 parts of lactose, 5-6 parts of lecithin, 0.5-0.6 part of a beta-sitosterol preparation and 0.5-0.6 part of a gamma-oryzanol preparation. The chocolate disclosed by the invention is smooth in surfaces, fine and smooth in mouth feel and moderate in sweetness; after the cocoa butter and the linseed oil generate a transesterification reaction, the content of beta crystal forms is increased, and the stability of the chocolate is good; and besides, the spleen-invigorating black chocolate has favorable storage properties, and in addition, the spleen-invigorating black chocolate disclosed by the invention has the efficacy of spleen invigorating efficacy.
Owner:安徽省甘滋罗生物科技股份有限公司

Method for detecting acid value of vegetable oil containing oryzanol

The invention discloses a method for detecting the acid value of vegetable oil containing oryzanol. The method comprises the steps that the following mixed dissolved solutions are used for dissolving a vegetable oil sample containing the oryzanol, wherein diethyl ether and ethyl alcohol with the concentration being 95% are mixed according to the volume ratio of 1:1, before using, 0.1mL of alkali blue-ethyl alcohol indicating liquid is added in every 100 mL of the above mixed solvent of the diethyl ether and the ethyl alcohol, and a KOH standard solution is used for accurately neutralizing the solution to be in the slight red color; 1-2 drops of alkali blue-ethyl alcohol are used as the indicating liquid, a potassium hydroxide- ethyl alcohol standard solution is used as a titrating solution, and a titrimetric method is used for detecting the acid value of the vegetable oil containing the oryzanol. The method solves the problem that the determination of titration end-point is influenced due to the color disturbance of the oryzanol in the vegetable oil with high oryzanol content. According to the method, the titration end points are observed and cleaned accurately, and the accuracy of the acid value detecting is improved. The method can be widely applied to acid value detecting of the vegetable oil with the high oryzanol content.
Owner:SHANDONG SANXING CORN IND SCI CO LTD
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