Production technology of glucomannan

A technology of glucomannan and production process, applied in the field of glucomannan preparation, can solve the problems of high processing cost, cumbersome steps, low yield of glucomannan, etc., achieves low cost, avoids the destruction of three-dimensional structure, The effect of maintaining water solubility

Active Publication Date: 2006-11-29
四川科创制药集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steps of the above two methods are cumbersome, the processing cost is high, the yield of glucomannan is not high, and the process uses reducing agent sodium sulfite or sulfur dioxide gas, etc., it is difficult to obtain medicinal glucomannan

Method used

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  • Production technology of glucomannan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1 Preparation of the solvent of the present invention

[0020] Mix the monohydric alcohol, ester, and polyhydric alcohol according to the ratio, and the ratio is shown in Table 1:

[0021]

Embodiment 2

[0022] Example 2 Preparation of Glucomannan

[0023] The underground tubers of the Araceae plant Konjac are dried, peeled, sliced, dried, crushed, and sieved to obtain 80-120 mesh konjac powder; soak the konjac powder with solvent, and the mixing ratio: add 2.2 per 1kg konjac powder After liters of solvent, the konjac meal and the solvent are fully mixed, stir at room temperature for 3 hours, and the stirring speed is controlled at 60-100 rpm;

[0024] Centrifugal filtration, the speed of the centrifuge is controlled at 1500-3000 rpm, washed with absolute ethanol 3 times (until the filtrate is clarified), and dried under reduced pressure at 40-60°C to obtain medicinal glucomannan; the obtained preparation results are shown in Table 2 :

[0025]

Solvent number

Yield / %

(As glucomannan / konjac meal)

Contains glucomannan / %

(Calculated as anhydrous glucose)

1

65.8

56.3

2

66.4

66.8

3

75.2

67.5

...

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Abstract

A process for preparing the glucomannan from konjak tuber includes such steps as drying, peeling, slicing, baking, pulverizing, sieving to obtain refined starch, immersing in a solvent, stirring, separating, washing and vacuum drying.

Description

Technical field [0001] The invention relates to a preparation process of glucomannan, in particular to a method for extracting glucomannan from underground tubers of konjac, belonging to the field of plant extraction and processing. Background technique [0002] Konjac Glaucomannan (Konjac Glaucomannan, abbreviated as KGM) is formed by the polymerization of D-glucose and D-mannose residues through β-1,4-glycosidic bonds, and exists at the C-3 position of some sugar residues With a branched chain composed of β-1,3-glycosidic bonds. The structural formula of glucomannan is: [0003] [0004] Glucomannan is a non-ionic water-soluble polymer polysaccharide with a molecular weight of 200,000-2,000,000. The viscosity of industrially produced commercial products can reach 20000mPa·s, which is the highest viscosity among the plant-based water-soluble edible glues found so far. It can be seen from the unique components and molecular structure of glucomannan that its physical and chemica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
Inventor 朱静龙毅余练康
Owner 四川科创制药集团有限公司
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