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Rice bran oil oryzanol production process

A production process and oryzanol technology, applied in the field of rice bran oil oryzanol production technology, can solve problems such as long production cycle, cumbersome recovery process, complicated process, and achieve the effects of improved productivity, strong adsorption capacity, and convenient regeneration.

Active Publication Date: 2021-08-24
INST AGRO PROD PROCESSING ANHUI ACADEMY AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The yield of oryzanol in the acidification distillation separation method is low, the production cycle is long, and the process is more complicated. The extraction rate of oryzanol in the weak acid substitution method is low, only 1 / 3, and high-acid rice bran oil is not suitable, and methanol extraction requires more methanol. , the recycling process is more cumbersome

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Crude rice bran oil is obtained by removing impurities, degumming, and decolorizing. Crude rice bran oil is a product of Anhui Dongbo Rice Industry. The crude rice bran oil has 0.6% impurities, 3.6mgKOH / g acid value, 0.38% moisture, and color (25.4mm groove ) yellow 35, red 4.0, peroxide value 2.8meq / kg, oryzanol content 1.93%. It includes the following steps: (1) Pump crude rice bran oil into the exchange resin alkali refining pot, stir rapidly at 150rpm and heat up to 60°C, stop heating, and add 30% AmberliteIRA400 strong base of rice bran crude oil evenly in 10 minutes under rapid stirring Non-toxic styrene anion exchange resin, stirred for 8 hours, then heated to 55°C, held for 1 hour, filtered, and collected saponins for later use; (2) Supplementary saponification: Stir the soapstocks and heat up to 50°C, and evenly add the mass of anion exchange resin 10% lye, the lye is sodium hydroxide solution with a mass fraction of 15%, continue to heat up to 90°C and stir an...

Embodiment 2

[0026] A rice bran oil oryzanol production process, the rice bran oil is obtained by removing impurities, degumming, and decolorizing to obtain rice bran crude oil. %, color (25.4mm tank) yellow 35, red 4.0, peroxide value 3.2meq / kg, oryzanol content 1.91%, (1) Pump crude rice bran oil into the exchange resin alkali frying pan, stir at 200rpm quickly and heat up to 60°C , stop the temperature rise, add rice bran crude oil quality 35% Amberlite IRA400 strong basic styrene anion exchange resin evenly in 10 minutes under rapid stirring, stir and react for 8 hours, then heat up to 60°C, keep warm for 2 hours, filter, collect saponins and wait (2) Supplementary saponification: Stir the soapstock to 55°C, evenly add 15% lye of anion exchange resin mass, continue to heat up to 95°C and stir for 2 hours to saponify, filter to obtain filter residue, and detect oryzanol content of 1.78%, In the above process, the loss of oryzanol content is less; (3) put the filter residue in the reaction...

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Abstract

The invention belongs to the technical field of rice bran oil production, and particularly relates to a rice bran oil oryzanol production process, which combines a physical process and a solvent method extraction oryzanol production process, so that the yield of refined rice bran oil is improved compared with that of an alkali dissolution and acidification method, traditional saponification is carried out at high temperature for a long time, oryzanol hydrolysis is caused by traditional saponification, and thus the yield is reduced. The process conditions of the rice bran oil oryzanol production process are optimized, so that the oryzanol degradation is reduced during processing. In the prior art, crude rice bran oil must be subjected to alkali refining with complex alkali liquor, so that main oryzanol in the oil is enriched in secondary alkali refining nigre, the process does not use complex alkali liquor treatment, the pollution degree of production to the environment is greatly reduced, the total yield of oryzanol is improved through solvent extraction, the oryzanol reaches the high-quality product standard, the production cost of oryzanol is greatly reduced, the limited rice bran oil raw material is fully utilized, and higher economic benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of rice bran oil production, in particular to a production process of rice bran oil oryzanol. Background technique [0002] According to data released by the National Bureau of Statistics, China's rice output in 2018 was 193.3 million tons, the rice bran yield was 7%, and the national annual output of rice bran was 13.531 million tons. Rice bran contains 64% of the important nutrients of rice and more than 90% of the essential elements of the human body. Therefore, it is known as the "treasure house of natural nutrition" and is a by-product resource with extensive development value. Among them, rice bran oil can reduce old sterols, anti-hyperlipidemia, anti-oxidation, anti-cancer, and maintain body health; rice bran phytic acid has good antioxidant properties, is safe and non-toxic, and has antistatic ability; many studies have shown that oryzanol Can prevent autonomic dysfunction and endocrine disorders. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J53/00C07D311/72C11B3/00C11B3/10C11B3/06
CPCC07J53/004C07D311/72C11B3/001C11B3/006C11B3/10C11B3/06
Inventor 何成芳朱鸿杰史自顺邓巩辉
Owner INST AGRO PROD PROCESSING ANHUI ACADEMY AGRI SCI