Xylitol extraction process

An extraction process, xylitol technology, applied in the field of bioengineering, to achieve the effects of high sugar yield, increased economic growth points, and less water consumption

Inactive Publication Date: 2016-06-01
张喜强
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a xylitol extraction process to solve how to make full use of biomass energy such as corn stalks, reduce environmental pollution, increase the sugar yield at the same time, and ensure the production of qualified and stable xylitol products The problem

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  • Xylitol extraction process

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Embodiment Construction

[0026] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] Xylitol extraction process of the present invention comprises the following steps:

[0028] A. Pretreatment: coarsely crush the fresh corn stalks into granules through a coarse crusher;

[0029] B. Hydrolysis: Put the coarsely crushed corn stalks into the hydrolysis equipment for hydrolysis, and the liquid obtained after hydrolysis is sugar liquid.

[0030] C. Decolorization: Use powdered activated carbon to remove impurities in the sugar solution, including pigments and colloids, etc., to achieve the purpose of preliminary purification.

[0031] D. Purification: Use anion and cation exchange resins to remove anions and cations in the sugar solution to achieve the purpose of purification. The quality of purification and purification is related to the ash content of the finished xylitol, which is one of the key processes of xyl...

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Abstract

The invention discloses a xylitol extraction process. The process comprises the following steps: A. pretreatment: carrying out coarse crushing on fresh corn straws by a coarse crusher to obtain particles; B. hydrolysis: adding the corn straw particles subjected to coarse crushing into a hydrolyzer, and carrying out hydrolysis to obtain a liquid which is a sugar solution; C. decolorization: removing impurities from the sugar solution with powdery activated carbon; D. purification: removing anions and cations from the sugar solution by using an anion exchange resin and a cation exchange resin; E. hydrogenation: adding the xylose solution into a reaction kettle, and converting the xylose solution into a xylitol solution; F. crystallization: enabling the hypersaturated-state xylitol crystal to grow, form and precipitate by controlling the cooling rate; G. centrifugation: separating the xylitol from the mother solution by controlling the centrifugating speed of the centrifuge; and H. evaporating water in the xylitol by controlling the temperature of the drying machine and the ambient humidity, thereby obtaining the xylitol product. The xylitol extraction process has the advantages of high yield and low water consumption.

Description

technical field [0001] The invention relates to the technical field of bioengineering, in particular to a xylitol extraction process. Background technique [0002] Xylitol is a natural plant sweetener extracted from corncobs, bagasse and other plant materials. It has a wide range of uses in the field of medicine: as sweeteners for diabetics, nutritional supplements, and auxiliary therapeutic agents , is the most nutritious sugar substitute for diabetics. It can promote the synthesis of glycogen in the liver without causing blood sugar to rise. It has the effect of improving liver function and anti-fatty liver in patients with liver diseases. It has obvious curative effects in the treatment of persistent hepatitis B, chronic hepatitis B and liver cirrhosis. It is a complication of hepatitis An ideal adjunct to patients, xylitol's anti-caries properties are the most effective of all sweeteners. [0003] Xylitol provides energy for the human body, synthesizes glycogen, reduce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C29/74C07C29/76C07C29/78C07C29/90C07C31/18
CPCC07C29/74C07C29/76C07C29/78C07C29/90C07C31/18
Inventor 张喜强
Owner 张喜强
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