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Nonionic tara gum polysaccharide derivative and preparation method and application thereof

A polysaccharide and non-ionic technology of tara gum, which is applied in pharmaceutical formulations, cosmetic preparations, cosmetic preparations and other directions, and can solve the problems of unfavorable promotion and application of tara gum, easy mildew light transmittance of glue, and water-insoluble matter content. Advanced problems, achieve good biodegradability, eliminate solvent recovery process, and perform well

Inactive Publication Date: 2020-07-24
刘东辉 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, it is still necessary to see that because the composition of tara gum is relatively complex, it has poor cold water solubility, high water insoluble content, poor salt resistance, easy mildew of the glue, and low light transmittance of 1% glue, only about 50%. Shortcomings such as left and right are not conducive to the promotion and application of tara gum

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of nonionic tara gum polysaccharide derivative of the present invention, described preparation method comprises the following steps:

[0030] Step a. according to formula quantity with the basic catalyst NaHCO of 15 parts 3 Add it to 85 parts of tara gum, use a mortar to fully finely mix it, and then add the finely mixed material to a three-necked bottle with a stirring device for full stirring;

[0031] Step b. Add 45 parts of non-ionic monomers into the three-necked flask, and carry out etherification reaction at a temperature of 55° C. under nitrogen protection, and react for 4 hours;

[0032] Step c. adding a neutralizing agent to adjust the pH value to 7, and drying to obtain the nonionic tara gum polysaccharide derivative with an apparent viscosity of 4000 mPa·S.

[0033] Wherein, the nonionic monomer is propylene oxide with epoxy groups. The neutralizing agent includes hydrochloric acid and citric acid, and the mass ratio of hydrochloric ...

Embodiment 2

[0035] The preparation method of nonionic tara gum polysaccharide derivative of the present invention, described preparation method comprises the following steps:

[0036] Step a. according to formula quantity with the basic catalyst NaHCO of 45 parts 3 Add it to 50 parts of tara gum, use a mortar to fully finely mix it, and then add the finely mixed material to a three-necked bottle with a stirring device for full stirring;

[0037] Step b. Add 90 parts of non-ionic monomers to the three-necked flask, and carry out etherification reaction at a temperature of 85° C. under nitrogen protection for 2 hours;

[0038] Step c. adding a neutralizing agent to adjust the pH value to 7.5, and drying to obtain the nonionic tara gum polysaccharide derivative with an apparent viscosity of 12000 mPa·S.

[0039] Wherein, the nonionic monomer is oxirane with epoxy groups. The neutralizing agent includes hydrochloric acid and acetic acid, and the mass ratio of hydrochloric acid and acetic ac...

Embodiment 3

[0041] The preparation method of nonionic tara gum polysaccharide derivative of the present invention, described preparation method comprises the following steps:

[0042] Step a. according to formula quantity with the basic catalyst NaHCO of 30 parts 3 Add it to 70 parts of tara gum, use a mortar to fully finely mix it, and then add the finely mixed material to a three-necked bottle with a stirring device for full stirring;

[0043] Step b. Add 70 parts of non-ionic monomers into the three-necked flask, and carry out etherification reaction at a temperature of 65° C. under nitrogen protection, and react for 3 hours;

[0044] Step c. adding a neutralizing agent to adjust the pH value to 9, and drying to obtain the nonionic tara gum polysaccharide derivative with an apparent viscosity of 9000 mPa·S.

[0045] Wherein, the nonionic monomer includes propylene oxide and ethylene oxide with epoxy groups, and the mass ratio of propylene oxide to ethylene oxide is 1:1.5. The neutral...

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Abstract

The invention discloses a nonionic tara gum polysaccharide derivative and a preparation method and application thereof. The preparation method comprises the following steps: adding quantitative NaHCO3into tara gum, fully refining and mixing tara gum by using a mortar, and adding the tara gum into a three-necked bottle with a stirring device for full stirring; adding a non-ionic monomer into the three-necked bottle, and carrying out etherification reaction for 2-4 hours under the condition of nitrogen protection at the temperature of 55-85 DEG C; and adding a neutralizer to adjust the pH valueto 7-9, and performing drying to obtain the nonionic tara gum polysaccharide derivative. According to the nonionic tara gum polysaccharide derivative and the preparation method and application thereof, the molar substitution degree of a nonionic group of the prepared nonionic tara gum polysaccharide derivative is 1.0 to 3.0, the apparent viscosity of the nonionic tara gum polysaccharide derivative solution with the mass content of 1 wt% is 4000-12000 mPa.s, the viscosity is stable, the light transmittance is 90% or above, and the nonionic tara gum polysaccharide derivative solution has the advantages of being good in rheological property and compatibility and smooth in gum liquid and meets the requirements of the daily chemical field for thickeners used for masks and shampoo industries.

Description

technical field [0001] The invention belongs to the technical field of polysaccharide modification, and in particular relates to a nonionic tara gum polysaccharide derivative and a preparation method and application thereof. Background technique [0002] Tara gum, also known as tara gum, is derived from Peruvian shrubs. It is a degradable powdery substance made from the endosperm of leguminous tara seeds through grinding and processing. It contains 80%-84% of Polysaccharide, 3%-4% protein, 1% ash part and part of crude fiber, fat and water. The main component of tara gum is tara gum polysaccharide molecules. The molecular weight of tara gum polysaccharide molecules is relatively large. The main chain is mannose connected by 1-4, and the side chain is galactose connected to the C6 hydroxyl group of mannose. The ratio of galactose unit to mannose unit is 1:3. [0003] At present, polysaccharides and their modified products have been more and more recognized in the field of d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00A61K8/73A61Q19/00
CPCC08B37/0087A61K8/737A61Q19/00A61K2800/10A61K2800/48
Inventor 刘东辉牛春梅
Owner 刘东辉
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