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Synthesis process for surfactant, namely hexylglucoside

A technology of surfactant and synthesis process, which is applied in fermentation and other directions, can solve the problems of strict reaction conditions, excessive industrial waste, and easy coking, etc., and achieve the effect of no pollution in the process, easy access to raw materials, and simple process

Pending Publication Date: 2020-07-03
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the direct glycoside method is that the reaction process is very slow, the reaction speed is slow, the reaction conditions are strict, and it is easy to coke. The products produced by this method are also many by-products, and there are many industrial wastes.

Method used

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  • Synthesis process for surfactant, namely hexylglucoside
  • Synthesis process for surfactant, namely hexylglucoside
  • Synthesis process for surfactant, namely hexylglucoside

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: A kind of synthetic technique of surfactant hexyl glucoside

[0031] Specific steps are as follows:

[0032] Prepare a stoppered glass bottle, weigh 0.1000g glucose, add 0.8mL phosphate buffer (pH=6.0), 1.8mL n-hexanol, 80μL β-glucosidase enzyme solution (20mg / mL stock solution), mix well, put In a constant temperature oscillator at 50°C, the rotation speed was 180r / min, and the reaction was carried out for 36 hours.

[0033] Experimental results: the conversion rate of glucose is 30.12%.

experiment example

[0051] 1. Performance test

[0052] The performance test of Example 1 of the present invention was carried out. At the end of the reaction, the solution contained unreacted glucose and fatty alcohol, so the extraction method and vacuum distillation were used to separate and purify the product. After the reaction, the solution was poured into a separatory funnel, allowed to stand for 10 min, and then separated. The separated lower layer solution was extracted again, and the extractant was n-hexane and diethyl ether, which was repeated twice. Combine the extracted solution with the upper layer, remove hexanol and ether by vacuum distillation, and then carry out vacuum distillation on the remaining reaction solution at 160-180°C. After distillation, the solution is left to cool, and the product is light yellow. .

[0053] (1) Determination of surface tension and critical micelle concentration

[0054] The first is to prepare the instrument and check for leaks. Clean the surfac...

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Abstract

The invention relates to a synthesis process for a surfactant, namely hexylglucoside. According to the invention, with glucose as a raw material, hexylglucoside is synthesized through a beta-glucosidase catalysis method. In the synthesis process disclosed by the invention, the feeding ratio of the glucose to n-hexanol to a phosphate buffer solution is 0.1 g: 1.8 mL: 0.8 mL; and the feeding ratio of the glucose to a beta-glucosidase stock solution is 0.1 g: 80 [mu]L. According to the invention, beta-glucosidase is used as a catalyst, and the hexylglucoside is synthesized in one step. The synthesis process provided by the invention has the advantages of easily available raw materials, simple process, no pollution, few byproducts, good hexylglucoside product performance, and industrial production application prospect.

Description

technical field [0001] The invention relates to a synthesis process of a surfactant hexyl glucoside, in particular to a green and gentle synthesis process of an enzyme-catalyzed synthesis of a nonionic surfactant hexyl glucoside, and belongs to the technical field of hexyl glucoside synthesis. Background technique [0002] Surfactant is also known as "industrial monosodium glutamate". When this substance is added to the solution, it will change the interface state of the solution, reduce the surface tension, and be both hydrophilic and lipophilic. Surfactants are classified into amphoteric active agents, anionic and cationic surfactants, other surfactants, etc. according to their properties, structures, functions, etc. Surfactants have many functions, such as removing oil stains, dispersing and emulsifying, enhancing foaming ability, sterilizing and disinfecting, etc. With the development of social economy and the continuous progress of science and technology, it has now sh...

Claims

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Application Information

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IPC IPC(8): C12P19/44C12P19/14
CPCC12P19/44C12P19/14
Inventor 邹飞雪崔波郭丽于滨方奕珊刘鹏飞
Owner QILU UNIV OF TECH
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