Method for preparing L-arabinose

A technology of arabinose and glucose, which is applied in the field of preparation of L-arabinose, can solve the problems of no popularization and application value, low market value, and low economic benefit, and achieve the effects of small production site, low labor intensity, and reduced production cost

Active Publication Date: 2009-08-12
FUTASTE PHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the production of L-arabinose, at present mainly adopt semi-fibrous material, obtain by the hydrolysis of arabinan, such as Chinese patent 01800804.6 has introduced a kind of main component that contains arabinan, arabinoxylan or arabinogalactose The natural substance of L-arabinose is obtained through the action of free L-arabinose active enzyme. This process requires special enzymatic hydrolysis conditions, so it is impossible to obtain pure crystalline L-arabinose finished product; Chinese patent 99805686.3 discloses a method through The method for preparing L-arabinose by selective acidolysis of plant fiber raw materials, through the patent 02116353.7, involves a...

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0013] Embodiment 1: the by-product xylose mother liquor that produces crystalline xylose from agricultural waste is diluted with pure water to a mass percent concentration of 5%, and then immobilized yeast is added according to 1% of the dry matter content of glucose, and the temperature of the feed liquid is controlled to be 25°C. And keep blasting to convert the glucose in it into carbon dioxide and water to promote the reduction of glucose content; add powdered activated carbon to the above-mentioned xylose mother liquor according to 2% of the dry matter content of the sugar liquid, control the temperature of the feed liquid to be 30°C, and the stirring speed to be 100 rpm / minute, the holding time is 20 minutes, and then filter with a plate and frame filter to obtain a decolorized solution of xylose mother liquor. After the decolorized solution is exchanged with yin-yang resin, refined xylose mother liquor is obtained; The sugar mother liquor is concentrated to a concentr...

Embodiment 2

[0014] Embodiment 2: Dilute the by-product xylose mother liquor of agricultural waste to produce crystalline xylose with pure water to a mass percent concentration of 30%, then add active dry yeast according to 3% of the dry content of glucose, and control the temperature of the feed liquid to be 35°C. And keep blasting to convert the glucose in it into carbon dioxide and water, and promote the reduction of glucose content; add powdered activated carbon to the above-mentioned xylose mother liquor according to 10% of the dry matter content of the sugar liquid, control the temperature of the feed liquid to be 80°C, and the stirring speed to be 500 rpm / minute, the holding time is 50 minutes, and then filter with a plate and frame filter to obtain a decolorized solution of xylose mother liquor. After the decolorized solution is exchanged with anion-yang resin, refined xylose mother liquor is obtained; the refined xylose mother liquor is obtained by using an evaporator The sugar m...

Embodiment 3

[0015] Embodiment 3: Dilute the by-product xylose mother liquor of agricultural waste to produce crystalline xylose with pure water to a mass percent concentration of 18%, then add active dry yeast and glucose oxidase by 2% of the dry content of glucose to control the temperature of the feed liquid temperature of 30°C, and blowing continuously to convert the glucose into carbon dioxide and water to promote the reduction of glucose content; add powdered activated carbon to the above-mentioned xylose mother liquor according to 6% of the dry matter content of the sugar liquid, control the temperature of the feed liquid to 55°C, and stir The rotation speed is 300 rpm, the holding time is 35 minutes, and then filtered with a plate and frame filter to obtain a decolorized solution of the xylose mother liquor. After the decolorized solution is exchanged with an anion-yang resin, a refined xylose mother liquor is obtained; using an evaporator Concentrate the refined xylose mother liquo...

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Abstract

The invention provides a preparation method of L-arabinose, comprising the following steps: a reduction of glucose content; b refinement of xylose mother liquor; c concentration and deoxygenation; d chromatographic fractionation; finally L-arabinose being obtained from the xylose mother liquor. The L-arabinose is obtained form the xylose mother liquor as by-product of crystal xylose from the agricultural waste. The process is simple, the operation is easy and the addition value of the xylose mother liquor is greatly increased and the production cost of L-arabinose is reduced; the chromatographic separation device uses the market chromatographic fractionation resin applied and tested by a large number of industrial applications without special device and the separation effect is good and the production process is in full automatic control and the labor intensity is low and the production site is small.

Description

technical field [0001] The invention relates to the technical field of functional sugar production, in particular to a preparation method of L-arabinose. Background technique [0002] L-arabinose is a five-carbon aldose, also known as pectin sugar, which is often combined with other monosaccharides and exists in gum, hemicellulose, pectic acid, bacterial polysaccharides and certain glycosides. Clinical trials have shown that L —Arabinose has a blocking effect on the metabolic conversion of sucrose, so it has broad application prospects in weight loss, control of elevated blood sugar levels in diabetics, etc. For the production of L-arabinose, at present mainly adopt semi-fibrous material, obtain by the hydrolysis of arabinan, such as Chinese patent 01800804.6 has introduced a kind of main component that contains arabinan, arabinoxylan or arabinogalactose The natural substance of L-arabinose is obtained through the action of free L-arabinose active enzyme. This process requi...

Claims

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Application Information

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IPC IPC(8): A23L1/09A23L1/30A23L33/125
Inventor 王成福田强杜瑞锋张念强
Owner FUTASTE PHARM CO LTD
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