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A method for preparation of oryzanol powder oryzanol powder prepared thereby and a method for preventing oxidization of meat and meat products by addition of oryzanol powder thereto
A method for preparation of oryzanol powder oryzanol powder prepared thereby and a method for preventing oxidization of meat and meat products by addition of oryzanol powder thereto
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机译：制备谷维素粉的方法，由此制备的谷维素粉，以及通过向其中添加谷维素粉防止肉和肉制品氧化的方法
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摘要
PURPOSE: Provided are a method for preparation of oryzanol powder, the oryzanol powder prepared thereby and a method for preventing oxidization of meat and processed meat products by adding a natural antioxidant the oryzanol powder thereto, thereby extending self-life of the meat and the processed meat products. CONSTITUTION: The oryzanol powder is manufactured by the steps of: mixing rice bran and hexane in a mixing ratio of 1:2, and followed by stirring and filtering it to give an extract; heating the extract, adding NaOH solution thereto and cooling them at room temperature; leaving the solution to obtain precipitates by centrifugation then separating a solid alkali agent therefrom; mixing the separated solid alkali gent with distilled water in a mixing ratio of 1:10 and followed by dissolving the mixture and controlling its pH to 7-11; re-mixing the obtained alkali solution with methanol and diethyl ether then recovering a diethyl ether layer; adding 5% KOH to the recovered diethyl ether layer then separating KOH layer; removing water and the solvent from the remaining ether layer then concentrating it; separating and purifying oryzanol concentrate from the concentrate by column chromatography; and crystallizing the purified material and heat-drying crystals to obtain oryzanol powder.
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