Production method of gamma-oryzanol

A production method and technology of oryzanol, which is applied in the field of γ-oryzanol production, can solve the problems of low purity of crude γ-oryzanol, low yield of crude γ-oryzanol, unreasonable and effective procedures, etc., to shorten the time of filtration and improve the purity , good effect
CN105348362AActive Publication Date: 2016-02-24XIAMEN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XIAMEN UNIV OF TECH
Publication Date
2016-02-24

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Abstract

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.
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Description

technical field

[0001] The invention relates to the field of preparation of oryzanol, in particular to a production method of gamma-oryzanol. Background technique

[0002] γ-Oryzanol is isolated and extracted from rice bran oil and rice germ oil, and is used as a raw material for food and medicine. As a medicinal agent, we know that it stimulates autonomic nerves and gonads, and activates menopausal disorders and human aging.

[0003] Existing methods for extracting crude gamma-oryzanol, the procedure is not reasonable and effective, the filtration time is long, the purity of the crude gamma-oryzanol extracted is low, and the yield of crude gamma-oryzanol is low. Therefore, an improved crude gamma-oryzanol is urgently needed production method. Contents of the invention

[0004] The purpose of the present invention is to provide a short filtration time, the extracted crude product of gamma-oryzanol has a high purity and a high yield of crude gamma-oryzanol.

[0005] To a...

Claims

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