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

Method for preparing mixed monoglyceride and diglyceride contained food oil through enzyme catalysis

A technology for catalyzing preparation and diglyceride, applied in directions such as production/processing of edible oil/fat, can solve problems such as high cost and no reported mixed monoglycerides, etc., and achieve the effect of low saturated fatty acid content

Inactive Publication Date: 2016-06-22
JINAN UNIVERSITY
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Diacylglycerol is prepared by enzymatic transesterification in industrial production. This manufacturing process has the disadvantage of relatively high cost
There is no report on the simultaneous preparation of mixed monoglycerides and diglycerides containing food oils and fats by transesterification

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 preparing mixed monoglyceride and diglyceride contained food oil through enzyme catalysis
  • Method for preparing mixed monoglyceride and diglyceride contained food oil through enzyme catalysis
  • Method for preparing mixed monoglyceride and diglyceride contained food oil through enzyme catalysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for preparing mixed monoglyceride and diglyceride-containing food oils and fats by enzyme-catalyzed transesterification, the method is as follows figure 2 shown, including the following steps:

[0026] (1) Get the mixture of 30.0g monoglyceride stearate and 70.0g soybean oil as the reaction substrate, add in the 250mL round bottom flask, after the mixture is completely melted in 60 ℃ water bath, add 5% (based on substrate total mass) of Novozymes LipozymeTLIM immobilized lipase as a catalyst, rotate at 100rpm (rotate instead of stirring, reduce shear force, prevent enzyme particle rupture) for 5h, remove enzyme to obtain crude DAG product.

[0027] The resulting crude DAG product was detected by gas chromatography. 50.0 mg of the crude DAG product was dissolved in 5.0 mL of acetone, and filtered with a 0.45 μm filter membrane.

[0028] Gas chromatography conditions: DB-1ht capillary column (15m×0.25mm, 0.1μm), inlet temperature 380°C, split ratio 40:1, press...

Embodiment 2

[0043] This implementation example is the same as Example 1 except for the following technical features: the enzyme addition amount described in step (1) is 1% (based on the total mass of the substrate), the reaction time is 2h, and the reaction temperature is 50°C. Finally, a crude DAG product is obtained. The crude product is separated and purified by molecular distillation to obtain food oil containing diglyceride, and the molecular distillation temperature in step (2) is 180°C.

[0044] Detected by the method described in Example 1, the content of diglyceride in the crude product obtained after the step (1) transesterification of this example is 4.0%; after molecular distillation, the food oil containing diglyceride is obtained, and the content of the oil in the oil is 4.0%. The diglyceride content is 6.7%.

Embodiment 3

[0046] This implementation example is the same as Example 1 except for the following technical features: the enzyme addition amount described in step (1) is 3% (based on the total mass of the substrate), the reaction time is 5h, and the reaction temperature is 55°C. Finally, a crude DAG product is obtained. The crude product is separated and purified by molecular distillation to obtain food oil containing diglyceride, and the molecular distillation temperature in step (2) is 190°C.

[0047] Detected by the method described in Example 1, the content of diglyceride in the crude product obtained after the step (1) transesterification reaction of this example is 9.3%; after molecular distillation, the food oil containing diglyceride is obtained, and the content of diacylglycerol in the oil is The diglyceride content is 15.5%.

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 preparing mixed monoglyceride and diglyceride contained food oil through enzyme catalysis and belongs to the technical field of oil deep processing and modification.According to the method, monoglyceric stearate and plant oil are used as raw materials, and a crude diglyceride product is prepared through lipase catalysis and transesterification; next, the crude product is subjected to molecular distillation and purification, and the mixed monoglyceride and the diglyceride contained food oil are obtained.The iodine value of the mixed monoglyceride is 36.8 g / 100 g, and the mixed monoglyceride can serve as an oil emulsifier special for food; the diglyceride contained food oil contains at least 20% of diglyceride, saturated fatty acid accounts for more than 20% of the fatty acid composition, and the SFC value of the oil composition is 6.7% at the temperature of 10 DEG C and 3.2% at the temperature of 20 DEG C.Thus, the diglyceride contained food oil can be used as base oil of fluid butterine.

Description

technical field [0001] The invention belongs to the technical field of oil deep processing and modification, and in particular relates to a method for preparing mixed monoglyceride and diglyceride-containing food oil by enzymatic catalysis. Background technique [0002] With the development of the economy and the improvement of people's living standards, the proportion of baked goods, chocolate, candy and ice cream in people's diet structure is increasing day by day, and the processing of these products is inseparable from special food fats. Food-specific fats are different from single vegetable oils and animal fats. They are special fats processed to meet specific food processing and product quality requirements. Traditional food-specific oils mainly have the disadvantages of containing trans fatty acids, high content of saturated fatty acids, and high cholesterol content. Excessive intake of solid fat affects the health of consumers, leading to the occurrence of chronic d...

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): A23D7/04
CPCA23D7/04
Inventor 汪勇陈琼滕英来李爱军张宁
Owner JINAN UNIVERSITY
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