Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for degumming and dewaxing grease

A technology of degumming, dewaxing, and oil composition, which is applied in the direction of edible oil/fat, fat oil/fat refining, and fat production, and can solve the problems that the rapid oxidation of refined linseed oil cannot be prevented and the effect is not ideal.

Pending Publication Date: 2021-07-16
WILMAR SHANGHAI BIOTECH RES & DEV CENT
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conventional refining process cannot prevent the rapid oxidation of refined linseed oil during the storage process, and the strong oxidative and fishy smell produced by oxidation still discourages consumers. Although the oxidation can be delayed by adding exogenous antioxidants, but The effect is not ideal
In addition, the deodorization process included in the conventional refining makes the linolenic acid in the linseed oil change into the trans form under high temperature deodorization conditions, forming a high content of trans fatty acids. It can be as high as 3-10%, which greatly exceeds the trans acid content of other popular oils

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 degumming and dewaxing grease

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The preparation method of crude oil in the present invention

[0025] The crude oil of the present invention can be obtained by referring to any known crude oil processing technology, such as pressing method, leaching method, supercritical method, aqueous enzymatic method, etc., wherein the pressing method can be cold pressing or hot pressing. For example, the dried linseed is pressed to obtain crude oil; or, the dried oil is pressed in stages to obtain crude oil.

[0026] In certain embodiments, the crude oil is dried and / or stored and then pressed once or staged to obtain crude oil.

[0027] In some embodiments, the drying can adopt conventional drying methods in the art, such as hot air drying, low-temperature drying, vacuum drying, low-temperature vacuum drying, and the like.

[0028] In some embodiments, the staged pressing is low-temperature staged pressing, that is, the oil is pressed at a temperature of 20-80°C.

[0029] In certain embodiments, the oil is flax...

Embodiment 1

[0056] The linseed crude oil is degummed and dewaxed in one step with low temperature and micro water, the contact temperature is 20°C, the crude oil is added with 0.1% water of oil weight at 100 rpm, mixed evenly and kept at 20 rpm for 1 hour, the stirring rate is controlled at 20 rpm, and then Cool down at a rate of 2°C / h to 8°C, control the stirring rate at 20 rpm, and keep for 10 hours, then cool down at a rate of 1°C / h to 0°C, control the stirring rate at 8 rpm, keep for 10 hours, and separate by plate and frame filtration. Get degummed and dewaxed oil.

Embodiment 2

[0058] The linseed crude oil is degummed and dewaxed in one step with low temperature and micro water, the contact temperature is 30°C, the crude oil is added with 0.3% water of oil weight at 100 rpm, mixed evenly and kept at 30 rpm for 1 hour, the stirring rate is controlled at 30 rpm, and then Cool down at a cooling rate of 5°C / h to 10°C, control the stirring rate at 10 rpm, and keep for 20 hours, then cool at a cooling rate of 0.5°C / h to 2°C, control the stirring rate at 10 rpm, keep for 20 hours, and separate by plate and frame filtration. Get degummed and dewaxed oil.

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 relates to a method for degumming and dewaxing grease, which comprises the following steps of: contacting crude oil with water at the temperature of 20-40 DEG C to obtain an oil-water mixture, and cooling the oil-water mixture, the addition amount of the water is 0.1-0.5% of the weight of the crude oil, the method provided by the invention obviously reduces the degumming temperature, and delays the occurrence of oxidation chain reaction in shelf life; the addition amount of water is obviously reduced, and the hydrolysis reaction degree and the subsequent dewatering and drying steps are reduced.

Description

technical field [0001] The invention relates to the field of oil refining, especially oil degumming and dewaxing. Background technique [0002] The unsaturated fatty acid content of linseed oil is as high as 80%, especially the very rich n-3 fatty acid α-linolenic acid, the content is as high as 50-70%, which is much higher than the existing popular oils on the market, and has extremely high nutrition value. A number of studies have shown that α-linolenic acid has beneficial effects on the brain and nerve development of infants, adolescent brain and vision development, adult metabolic syndrome, cognitive ability of middle-aged and elderly people, and senile dementia. Its important nutritional value runs through the human body. lifetime. However, because linolenic acid contains many unsaturated double bonds, it is easy to oxidize and produces a strong oxidative and fishy smell. The shelf quality and flavor stability of linseed oil have always been a problem that plagues oil...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00A23D9/04
CPCC11B3/00C11B3/001A23D9/04
Inventor 刘晓君周盛敏姜元荣
Owner WILMAR SHANGHAI BIOTECH RES & DEV CENT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com