Title:
METHOD FOR PREPARING ORYZANOL BY USING SOAPSTOCK CONTAINING ORYZANOL AS RAW MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/098680
Kind Code:
A1
Abstract:
A method for preparing oryzanol by using soapstock containing oryzanol as a raw material, comprising the following steps: 1) alkali alcohol hot dissolving; 2) thermal insulation and fine filtration; 3) thermal insulation and ultrafiltration membrane separation; 4) thermal insulation and decolorization; 5) acidification, neutralization and filtration; 6) washing; and 7) drying. The temperature in step 1) to step 4) is controlled at 50-60°C. The described method is characterized in thermal insulation and operation being carried out at 50-60°C, cooperating with the process conditions of membrane separation, decolorization and washing, the final produced product being a white powder, the purity of oryzanol being higher than 98% and the yield being higher than 73%; the described method does not use methanol, ether, hexane, solvent oil and other toxic or flammable and explosive organic solvents, which improves product safety; the production process is simple, production equipment requirements are low, and operation and implementation are easy; moreover, production costs are low, and the method is suitable for industrialized production.
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Inventors:
HUANG HUAXUE (CN)
LIU GENGGUI (CN)
HE ANLE (CN)
ZENG RUNQING (CN)
LIU GENGGUI (CN)
HE ANLE (CN)
ZENG RUNQING (CN)
Application Number:
PCT/CN2020/129370
Publication Date:
May 27, 2021
Filing Date:
November 17, 2020
Export Citation:
Assignee:
HUNAN HUACHENG BIOTECH INC (CN)
International Classes:
C07J53/00
Domestic Patent References:
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Other References:
ZHOU DIPING, TANG KE-JUN, LIU GENG-GUI, JIANG XIN-FANG, LUO XI: "The New Technology of Separation and Extraction Content 98% Natural Ferulic Acid from the Waste of Rice Bran Oil Processing", ENTERPRISE SCIENCE AND TECHNOLOGY & DEVELOPMENT, vol. 5, no. 323, 1 January 2012 (2012-01-01), pages 10 - 16, XP055813975, ISSN: 1674-0688
SEREEWATTHANAWUT, I. ; BAPTISTA, I.I.R. ; BOAM, A.T. ; HODGSON, A. ; LIVINGSTON, A.G.: "Nanofiltration process for the nutritional enrichment and refining of rice bran oil", JOURNAL OF FOOD ENGINEERING, BARKING ESSEX, GB, vol. 102, no. 1, 1 January 2011 (2011-01-01), GB, pages 16 - 24, XP027284600, ISSN: 0260-8774
See also references of EP 3858848A4
SEREEWATTHANAWUT, I. ; BAPTISTA, I.I.R. ; BOAM, A.T. ; HODGSON, A. ; LIVINGSTON, A.G.: "Nanofiltration process for the nutritional enrichment and refining of rice bran oil", JOURNAL OF FOOD ENGINEERING, BARKING ESSEX, GB, vol. 102, no. 1, 1 January 2011 (2011-01-01), GB, pages 16 - 24, XP027284600, ISSN: 0260-8774
See also references of EP 3858848A4
Attorney, Agent or Firm:
BEIJING ZHONGZHI XINGYUAN IP LAW FIRM (CN)
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