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

1,3-diunsaturated fatty acid-2-palmitic acid-containing structure grease and preparation method thereof

A technology of unsaturated fatty acids and structural oils, which is applied in the fields of fatty acid esterification, edible oil/fat, food science, etc., to achieve the effect of high food safety

Active Publication Date: 2015-08-12
CABIO BIOTECH WUHAN CO LTD
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although its exact formation is not fully understood, it has been observed that processing temperature, especially steam deodorization processing, has a strong influence: the higher the temperature, the higher the amount of 3-chloro-1,2-propanediol found in the vegetable oil

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Provide a kind of palm oil, its palmitic acid accounts for 21.7% of total fatty acid ratio, and 2 palmitic acid content is 15.6%. Among them, "2-position palmitic acid content" refers to the content of palmitic acid at the 2-position accounting for all the fatty acids at the 2-position, and its detection method refers to GB / T24894, the same below.

[0017] (2) Put 25g of the reaction substrate palm oil, 1g of palmitic acid and 0.5g of potassium hydroxide in a flask, stir and raise the temperature to 170°C and keep it constant, and continue the reaction for 10 hours (transesterification, the same below), then add hexane After 50ml is fully dissolved, the fatty acid potassium is removed by centrifugation to obtain grease A.

[0018] (3) Mix 20g of fat A and 20g of oleic acid, put it in a four-necked flask, stir and heat up to 68°C and keep it constant, add 2.4g of sn-1,3 specific lipase, and reflux for 8 hours (directed transesterification , the same below), to obtai...

Embodiment 2

[0021] (1) Provide a kind of palm oil, its palmitic acid accounts for 22.8% of total fatty acid ratio, and 2 palmitic acid content is 16.4%.

[0022] (2) Add 50 g of palm oil, 1 g of methyl palmitate and 0.5 g of lipase into the flask, stir and raise the temperature to 76° C. and keep it constant, and continue the reaction for 8 hours. After the reaction, fatty acid methyl ester was removed by dry fractionation to obtain fat A.

[0023] (3) Mix 40g of fat A and 20g of linoleic acid, put it in a four-neck flask, stir and raise the temperature to 70°C and keep it constant, add 200ml of cyclohexane, add 2.4g of sn-1,3 specific lipase, and reflux After reacting for 7 hours, mixed oil B was obtained.

[0024] (4) Purify the mixed oil B. The purification steps include but not limited to: filter to remove lipase, dry fractionation to remove free fatty acids, and obtain a structured oil containing 1,3-dilinoleic acid-2-palmitic acid after deodorization . Through testing, the conte...

Embodiment 3

[0026] (1) A shortening is provided, the proportion of palmitic acid in the total fatty acids is 23.0%, and the content of 2-position palmitic acid is 16.9%.

[0027] (2) Put 200g of shortening, 200g of ethyl palmitate, 20g of lipase and 1g of deionized water as the reaction substrates in a container, stir and raise the temperature to 60°C and keep it constant, and continue the reaction for 8 hours. After the reaction, fatty acid ethyl ester was removed by molecular distillation to obtain oil A.

[0028] (3) Mix 300g of fat A and 600g of arachidonic acid, put it in a container, stir and raise the temperature to 60°C and keep it constant, add 700mL of octane, add 37g of sn-1,3 specific lipase, and keep the reaction for 8 hours , to get mixed oil B.

[0029] (4) Purify the mixed oil B. The purification steps include but are not limited to: filter to remove lipase, then remove free fatty acids by dry fractionation, and obtain 1,3-diarachidonic acid-2-palmitic acid after deodoriz...

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 1,3-diunsaturated fatty acid-2-palmitic acid-containing structure grease, wherein the triglyceride content in the structure grease is not less than 90%, the total content of 3-chloro-1,2-propanediol and glycidol is not more than 1.8 mg / kg, and the 3-chloro-1,2-propanediol content is not greater than 1.2 mg / kg. According to the1,3-diunsaturated fatty acid-2-palmitic acid-containing structure grease of the present invention, the 3-chloro-1,2-propanediol content is low and the total content of 3-chloro-1,2-propanediol and glycidol is low, such that the eating safety is high.

Description

technical field [0001] The invention relates to a structured oil, in particular to a structured oil containing 1,3-diunsaturated fatty acid-2-palmitic acid. The present invention further relates to a preparation method of the above-mentioned structured oil containing 1,3-diunsaturated fatty acid-2-palmitic acid. Background technique [0002] Triglycerides are the main fats and oils ingested by humans. Modern nutrition has confirmed that during the process of digesting triglycerides, the human body will preferentially hydrolyze the fatty acids at positions Sn-1 and 3 to form Sn-2 monoglycerides and a large amount of free fatty acids. These free fatty acids will undergo two reactions in the body: 1. be absorbed by itself; 2. be excreted after reacting with other substances in the body. Compared with free unsaturated fatty acids, free saturated fatty acids have a slower absorption rate and are more likely to react with calcium to form insoluble calcium soap, which is then exc...

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): C11C3/10C12P7/64
CPCA23D9/04C11C3/10C12P7/6472
Inventor 汪志明李翔宇陆姝欢周强肖敏易德伟
Owner CABIO BIOTECH WUHAN CO LTD
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