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

Method for extracting linseed oil by cold pressing with salt-water wetting

A technology of linseed oil and linseed oil, which is applied in the field of cold pressing to provide linseed oil and salt water wet cold pressing to extract linseed oil, can solve the problems of low oil yield of linseed oil, achieve easy industrial production, mild reaction conditions, reduce The effect of the amount of organic solvent

Inactive Publication Date: 2014-12-17
GANSU HUINING JIANWEI EDIBLE OIL
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low oil yield of linseed oil extracted by cold pressing in the prior art, and to provide a method for extracting linseed oil by cold pressing with salt water, aiming at improving the oil yield of linseed oil extracted by cold pressing

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 extracting linseed oil by cold pressing with salt-water wetting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Select 100 catties of plump flaxseed, add 8 catties of NaCl aqueous solution (concentration is 20g / L) after natural drying;

[0015] (2) Put the mixed linseed into a twin-screw oil press for pressing. The control screw speed is 40r / min, the pressing temperature is 20°C, and the feed rate is 100kg / h;

[0016] (3) The obtained crude oil is separated by a high-speed centrifuge, the centrifuge temperature is controlled at 20°C, and the rotation speed is 15,000 rpm. Obtaining pure natural linseed seed oil is 35.20 jin. The oil yield was 35.20%, and the various indexes of the oil products are shown in Table 1.

Embodiment 2

[0018] (1) Select 100 catties of plump flaxseed, add 15 catties of NaCl aqueous solution (concentration is 5g / L) after natural drying;

[0019] (2) Put the mixed linseed into a twin-screw oil press for pressing. Control the screw speed to be 50r / min, the pressing temperature to be 50°C, and the feed rate to be 120kg / h;

[0020] (3) The obtained crude oil is separated by a high-speed centrifuge, the centrifuge temperature is controlled at 15°C, and the rotation speed is 20,000 rpm. Obtaining pure natural linseed oil is 34.90 jin. The oil yield was 34.90%, and the various indexes of the oil products are shown in Table 1.

Embodiment 3

[0022] (1) Select 100 catties of plump flaxseed, add 10 catties of NaCl aqueous solution (concentration is 15g / L) after natural drying;

[0023] (2) Put the mixed linseed into a twin-screw oil press for pressing. Control the screw speed to 45r / min, the pressing temperature to 25°C, and the feed rate to 110kg / h;

[0024] (3) The obtained crude oil is separated by a high-speed centrifuge, the centrifuge temperature is controlled at 25°C, and the rotation speed is 15,000 rpm. Obtaining pure natural linseed seed oil is 36.50 jin. The oil yield was 36.50%, and the various indexes of the oil products are shown in Table 1.

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 discloses a method for extracting linseed oil by cold pressing with salt-water wetting and belongs to the fields of food and food processing. The method comprises the following steps: naturally drying linseeds, adding salt water to stir and wet the linseeds, then carrying out low-temperature pressing, and centrifugating at high speed to obtain pure-natural linseed oil. The method disclosed by the invention is improved on the basis of the traditional method for extracting the linseed oil by cold pressing, and has the beneficial effects that the dry linseeds are wet by salt water, the tissue structures of membranes on the surfaces of the linseeds are changed, and then low-temperature pressing is carried out, so that not only is no damage to the original components well maintained, but also the oil yield of the linseed oil is greatly increased (increased by 29.44% compared with that of the traditional cold-pressing process), and the used amount of an organic solvent used in secondary oil removal of cake meal at the later period is reduced; and the reaction conditions are mild, the technical process is environmental-friendly and the method is easy for industrial production.

Description

technical field [0001] The invention relates to a method for providing linseed oil by cold pressing, in particular to a method for extracting linseed oil by cold pressing with salt water, and belongs to the field of food and its processing. Background technique [0002] Flax, also known as flax, is an annual herb of the Linaceae family and one of the top ten oil crops in the world. Mainly grow in my country's Northwest, Northeast, North China, Inner Mongolia and other places. Saturated fatty acids in linseed oil account for 8% to 10%, monounsaturated fatty acids account for 18% to 23%, linoleic acid accounts for 12% to 16%, and α-linolenic acid accounts for 51% to 62%. α-linolenic acid plays an important role in the prevention and treatment of cardiovascular diseases, lowering blood cholesterol, and enhancing the body's immunity. [0003] At present, the methods of extracting linseed oil mainly include pressing method (including hot pressing and cold pressing), solvent ext...

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): C11B1/04C11B1/06A23D9/02
Inventor 焦建伟贾尚军殷振雄
Owner GANSU HUINING JIANWEI EDIBLE OIL
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