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Acylglycerol cinnamate antioxidant and synthesis method thereof

A technology of cinnamic acid acylglycerol and antioxidant, which is applied in the field of antioxidants and their synthesis, cinnamate acylglycerol ester antioxidants and their synthesis, can solve the problem of few researches on catalytic synthesis, and achieves good color protection effect and efficient catalysis Reaction action, simple effect of product separation

Inactive Publication Date: 2015-04-08
FOSHAN MINGQIAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, most of the researches are traditional strong acid catalysts or expensive biological enzymes to catalyze the synthesis of acyl cinnamic acid esters. There are very few studies on the catalytic synthesis of "green" ionic liquids, and there is no combination of ionic liquids and inorganic catalysts. A Report on Fat-Soluble Acyl Cinnamic Acid Structural Esters

Method used

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  • Acylglycerol cinnamate antioxidant and synthesis method thereof
  • Acylglycerol cinnamate antioxidant and synthesis method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Add 100 grams of ethyl cinnamate and 50 grams of soybean oil to a reaction flask equipped with a magnetic stirrer, then add 10 grams of a preconfigured composite catalyst (1-sulfonic acid butyl-3-methylimidazole p-toluenesulfonic acid Salt and monoisooctyl di-n-butyltin dimaleate, the compounding ratio is 5:1), the circulating water vacuum pump gives the system a vacuum degree of 98kPa, the heating temperature is 75°C, and the reaction is 8h. The reaction solution was centrifuged at 8000 r / min at 10°C for 6 minutes to separate the target product in the upper layer and the catalyst in the lower layer.

[0028] Under this reaction condition, obtain product 127.5g, product final yield is 85%.

Embodiment 2

[0030] 90 grams of vinyl cinnamate and 40 grams of soybean oil are added to the reaction flask equipped with a magnetic stirrer, and then 8.5 grams of pre-configured composite catalysts (1-sulfonic acid butyl-3-methylimidazole sulfonate and Monoisobutyl dimaleic acid di-n-butylnickel, the compounding ratio is 7:1), the circulating water vacuum pump gives the system a vacuum degree of 50kPa, the heating temperature is 85°C, and the reaction is 9.5h. The reaction solution was centrifuged at 10,000 r / min for 3 minutes at 6°C to separate the target product in the upper layer and the catalyst in the lower layer.

[0031] Under this reaction condition, obtain product 107.1g, product final yield is 89.25%.

Embodiment 3

[0032] Embodiment 3 (first instance catalyst recycling)

[0033] 110 grams of ethyl cinnamate and 40 grams of soybean oil were added to the reaction flask equipped with a magnetic stirrer, and then 9 grams of composite catalysts configured in advance (1-sulfonic acid propyl-3-methylimidazole p-toluenesulfonic acid Salt and lauric acid dibutyltin maleate, the compounding ratio is 5:1), the circulating water vacuum pump gives the system a vacuum of 80kPa, the heating temperature is 65°C, and the reaction is 12h. The reaction solution was centrifuged at 5000 r / min at 8°C for 8 minutes to separate the target product in the upper layer and the catalyst in the lower layer.

[0034] Under this reaction condition, obtain product 120.4g, product final yield is 86%.

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Abstract

The invention relates to an acylglycerol cinnamate antioxidant and a synthesis method thereof and belongs to the technical field of production of food additives. The synthesis method of the acylglycerol cinnamate antioxidant comprises the following steps of: carrying out interesterification on ethyl cinnamate and glycerol in the presence of a composite catalyst, heating, reducing pressure, removing ethanol which is a byproduct, and separating a reaction solution centrifugally to obtain a product which is acylglycerol cinnamate antioxidant, wherein the product conversion rate is more than 98%, and the reaction solution does not need to be purified by crystallizing with a solvent. The composite catalyst is prepared by compounding an ionic liquid catalyst with an inorganic catalyst. The acylglycerol cinnamate antioxidant provided by the invention can be applied to the food industry, and the synthesis method of the acylglycerol cinnamate antioxidant has the advantages of high reaction speed and mild reaction conditions. In addition, the reaction time can be shortened greatly, and the catalyst can be recycled easily.

Description

technical field [0001] The invention provides an antioxidant and a synthesis method thereof, in particular to a cinnamic acid acylglyceride antioxidant and a synthesis method thereof, belonging to the technical field of food additive production. Background technique [0002] Organisms on the earth need oxygen to survive, but at the same time oxygen is a highly reactive molecule that can damage organisms by producing reactive oxygen species, so a set of antioxidant metabolites and enzymes has been established in organisms The complex network system of antioxidants protects against oxidative damage through the synergistic cooperation between metabolic intermediates and products with antioxidant effects and enzymes, and antioxidants emerge as the times require. [0003] Antioxidants are substances that prevent or delay food oxidation, improve food stability and extend storage life. Food antioxidants can be divided into oil-soluble antioxidants and water-soluble antioxidants ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/618C07C67/02A23L3/3517
CPCY02P20/584C07C69/618A23L3/3517C07C67/02
Inventor 黄朝阳
Owner FOSHAN MINGQIAN TECH
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