Method for refining rice bran oil by mixing crude rice bran oil refining technique

A technology of crude rice bran oil and rice bran oil, which is applied in the fields of oil refining and deep processing of agricultural and sideline products, can solve problems such as difficulty in meeting the first-class national rice bran oil standard, unsatisfactory physical and chemical indicators of products, and deep color of rice bran oil products, and achieve improvement. Product color, improved alkali refining effect, and low refining consumption

Inactive Publication Date: 2008-08-13
JIANGNAN UNIV
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the domestic production of rice bran oil is less than 200,000 tons. This is mainly due to the high refining consumption of the traditional refining process. The prepared rice bran oil product has a darker color and higher acid value, and it is difficult to meet the national first-class standard f

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for refining rice bran oil by mixing crude rice bran oil refining technique
  • Method for refining rice bran oil by mixing crude rice bran oil refining technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Quality indicators of mixed rice bran crude oil: acid value: 32, phospholipid content: 2.0%.

[0022] After the mixed rice bran crude oil is filtered to remove impurities, adjust the concentration of the mixed rice bran crude oil to 70%, and at 50°C, add 0.2% of the mixed oil and 85% phosphoric acid to mix, stir and react evenly for 20 minutes, and enter Alkaline treatment process.

[0023] press G NaOH =G O ×V A ×40 / 56.11×10 -3 Calculate the theoretical amount of caustic soda, add it to the above-mentioned degummed mixed oil according to 100.2% theoretical alkali amount, fully mix, slowly stir (30rpm) and react flocculation (30min) under the condition of 50°C, and then centrifuge. After separation, the mixed oil is desolvated, The finished rice bran oil is obtained through decolorization and deodorization.

[0024] See the table below for the quality comparison between the mixed oil refining process and the traditional process of rice bran oil:

[0025]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method for refining blended rice bran oil by a refining process of mixed rice bran crude oil, belonging to agricultural and sideline products deep-processing, oil and fats refining technical field. The mixed rice bran oil is used as raw material. The proportion of oil to solvent is adjusted before completely evaporating to precipitate. The following steps are: degumming and depickling; evaporating the blended oil using conventional method; gas stripping and precipitating; finally decolorizing and deodorizing to obtain refined rice bran oil. All indexes of the refined rice bran oil are better than the indexed of traditional technique, especially the color and acid value of the rice bran oil is greatly improved, wherein the color (25.4mm) of the rice bran oil is Y36R2 and the acid value is 0.16, which satisfy the country primary standard of refined rice bran oil, namely the primary standard of color is <=Y35R3.5 and the primary standard of acid value is <=0.2. The refining rate is high and the oil content of nigre is low, respectively being 92.87% and 27.84%, but using the traditional technique, the refining rate is respectively 90.81% and 36.77%.

Description

technical field [0001] The invention discloses a method for refining rice bran oil by mixing crude rice bran oil refining process, which belongs to the technical fields of intensive processing of agricultural by-products and oil refining. Background technique [0002] Rice bran oil is oil made from rice bran, which has high nutritional value. The fatty acid ratio is in line with the best ratio of 1:1 oleic acid and linoleic acid recommended by the International Health Organization. Rice bran oil contains oryzanol, twenty-eight Alkanol, triacontanol, phytosterol and other functional ingredients can effectively reduce human serum cholesterol, prevent arteriosclerosis, hypertension and other cardiovascular system diseases. As a big rice producing country, my country's rice production accounts for one-third of the world's total production. Rice bran resources are very rich, with an annual output of 10 million tons, ranking first in the world. The potential annual output of rice ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A23L1/29A23L1/10A23D7/02A23L1/28A23L1/015A23L33/105A23L33/115
Inventor 王兴国刘元法刘方波宋志华
Owner JIANGNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap