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A kind of preparation and application method of highland barley β-glucan-polyaspartic acid complex

A technology of polyaspartic acid and dextran, which is applied in the field of biomedicine, can solve the problems of lack of preparation and application methods of highland barley β-glucan-polyaspartic acid complex, and achieve improved performance and moisturizing ability Strong, bioadhesive effect

Inactive Publication Date: 2020-10-27
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Proper reaction of highland barley β-glucan and polyaspartic acid to form a complex can improve some properties of highland barley β-glucan, thereby expanding its application field, but there is still a lack of highland barley β-glucan in this field. Preparation and application method of polysaccharide-polyaspartic acid complex

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take 6 parts of highland barley β-glucan, 1 part of polyaspartic acid, add 180 parts of water, stir at 100 rpm for 12 hours, add 0.5 parts of glycerol, stir at 90°C and 100 rpm for 5 hours, then freeze-dry the reaction solution, The freeze-dried powder is placed in a constant temperature airtight container, the temperature is kept at 75°C and the relative humidity is 80%, and a saturated potassium bromide solution is placed at the bottom of the container for 15 days at a constant temperature.

Embodiment 2

[0020] Take 8 parts of highland barley β-glucan, 1.5 parts of polyaspartic acid, add 200 parts of water, stir at 100 rpm for 15 hours, add 0.8 parts of ethylene glycol, stir at 80°C and 100 rpm for 6 hours, then freeze-dry the reaction solution, The freeze-dried powder is placed in a constant temperature airtight container, the temperature is kept at 65°C and the relative humidity is 70%, and a saturated potassium bromide solution is placed at the bottom of the container for 20 days at a constant temperature.

Embodiment 3

[0022] Take 6 parts of highland barley β-glucan, 1 part of polyaspartic acid, add 150 parts of water, stir at 100 rpm for 11 hours, add 0.9 parts of glycerol, stir at 85°C and 100 rpm for 6 hours, then freeze-dry the reaction solution, The freeze-dried powder is placed in a constant temperature airtight container, maintained at a temperature of 70°C and a relative humidity of 82%, and a saturated potassium iodide solution is placed at the bottom of the container for 12 days at a constant temperature.

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Abstract

The invention discloses preparation and application methods of a highland barley beta-glucan-polyaspartic acid complex. The preparation method of the highland barley beta-glucan-polyaspartic acid complex comprises the following steps: after sufficiently swelling and dissolving highland barley beta-glucan and polyaspartic acid with water, adding ethylene glycol or glycerol and reacting at 80 DEG Cto 100 DEG C for a period of time; freezing and drying a reaction solution and putting freeze-dried powder into a saturated potassium bromide or saturated potassium iodide solution environment under the conditions that the temperature is 55 DEG C to 85 DEG C and the relative humidity is 65 percent to 85 percent and reacting for 10d to 20d to obtain the highland barley beta-glucan-polyaspartic acidcomplex. The complex disclosed by the invention can be applied to fields including cosmetic humectants and biological adhesive preparation type medicines. The preparation and application methods of the highland barley beta-glucan-polyaspartic acid complex have the advantage that the complex has good hmudity keeping performance and biological adhesive performance.

Description

technical field [0001] The invention relates to the technical field of biomedicine, in particular to a preparation and application method of barley beta-glucan-polyaspartic acid complex. Background technique [0002] Highland barley β-glucan is a kind of polymer non-starch polysaccharide extracted from highland barley. Its chemical structure is a polymer formed by glucose units through β-(1→3) and β-(1→4) glycosidic bonds. Highland barley β-glucan has certain water absorption and viscoelasticity, so it has potential uses in cosmetic moisturizers and bioadhesive pharmaceutical preparations. [0003] Polyaspartic acid is a polyamino acid whose structure is a polymer formed by aspartic acid units through peptide bonds. Polyaspartic acid has strong water absorption, and is often used in the synthesis of superabsorbent resins, and is also used as a moisturizer in cosmetics. [0004] Proper reaction of highland barley β-glucan and polyaspartic acid to form a complex can improve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/88A61K8/73A61Q19/00A61K47/34A61K47/36
Inventor 杨文宇李浩浩王彬容
Owner XIHUA UNIV
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