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A kind of modification method of fenugreek polysaccharide gum

A technology of fenugreek and polysaccharide gum, which is applied in the field of modification of fenugreek polysaccharide gum, can solve the problems of high water-insoluble matter content and low viscosity, and achieves reduction of water-insoluble matter content, high product yield, and improved performance. The effect of apparent viscosity

Active Publication Date: 2016-04-27
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology

However, the fenugreek polysaccharide gum powder currently produced by the factory has problems such as high water insoluble content and low viscosity. Therefore, it is urgent to find a modification method for the fenugreek polysaccharide gum to improve the apparent viscosity of the fenugreek polysaccharide gum. Reduce the content of water insoluble, can expand its application range

Method used

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  • A kind of modification method of fenugreek polysaccharide gum

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Embodiment 1

[0024] Modification of embodiment 1 fenugreek polysaccharide gum

[0025] according to figure 1 The process flow chart of the modification method of the fenugreek polysaccharide gum is shown, and the fenugreek polysaccharide gum is modified.

[0026] 1. Grading and screening:

[0027] Use 30 mesh and 80 mesh standard sieves to classify and screen the unmodified fenugreek polysaccharide films, discard the films with particle diameters less than 80 mesh, and collect the films with particle diameters greater than 30 mesh and 30-80 mesh for subsequent use;

[0028] 2. Physical modification:

[0029] Fenugreek polysaccharide films with a particle size greater than 30 mesh were added to 15% ethanol aqueous solution for hydration, the solid-to-liquid ratio was 1:1, stirred evenly, the hydration time was 1 hour, and then vacuum-dried at 75°C for 10 minutes. Gently pulverize the dried film in a high-speed pulverizer while hot, and then sieve with an 80-mesh standard sieve to collect...

Embodiment 2

[0032] Example 2 Detection of Modified Apparent Viscosity and Water-Insoluble Content of Fenugreek Polysaccharide Gum

[0033] 1. The mixed rubber powder before the wall-breaking and viscosifying treatment is pulverized with a high-speed centrifuge, and the rubber powder passing through a 120-mesh sieve is tested to have an apparent viscosity of 134mPa.s and a water-insoluble content of 9.1%.

[0034] 2. The fenugreek polysaccharide gum after the wall-breaking and viscosity-increasing treatment was pulverized on a high-speed centrifuge, and the rubber powder passed through a 120 mesh sieve was tested to have an apparent viscosity of 241 mPa.s and a water insoluble content of 8.7%.

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Abstract

The invention provides a modification method of fenugreek polysaccharide gum. Graded screening is utilized to remove impurities with high water-insoluble substance content in the fenugreek polysaccharide gum sheet; and a physical process is utilized to perform modification (wetting fenugreek polysaccharide gum with a 15% ethanol water solution) and wall-breaking tackifying treatment, thereby greatly enhancing the apparent viscosity of the fenugreek polysaccharide gun and greatly lowering the water-insoluble content in the fenugreek polysaccharide gum.

Description

technical field [0001] The invention relates to the field of biomass chemical industry, and specifically relates to a method for modifying fenugreek polysaccharide gum. Background technique [0002] Fenugreek polysaccharide gum is derived from the endosperm of the annual leguminous plant fenugreek seed, which is a characteristic plant polysaccharide gum in my country. Fenugreek polysaccharide gum is composed of galactose and mannose. The structural skeleton is composed of β-D-mannose connected through 1→4, and a single α-D-galactose is connected to the main chain residues through 1→6 bonds. On O(6), the ratio of galactose to mannose is close to 1:1.2, and the molecular weight is about 250,000 to 600,000. The finished fenugreek polysaccharide gum is a white or slightly yellowish-brown amorphous powder, odorless or slightly smelly, easily soluble in water, and dissolves in hot water (80°C) to produce a higher viscosity, which is higher than that of melon Gum and Locust Bean ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/00
Inventor 蒋建新于海龙段久芳孙达峰张卫明
Owner BEIJING FORESTRY UNIVERSITY
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