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Method for producing xylan-containing composition and method for producing glucan-containing composition

A manufacturing method and composition technology, applied in the direction of preparation of sugar derivatives, sugar derivatives, sugar derivatives, etc., which can solve the problems of low availability, purity difference, etc.

Active Publication Date: 2018-11-16
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these conventional methods, C6 sugars derived from cellulose and C5 sugars derived from xylan in hemicellulose are obtained as a mixed sugar during saccharification, so they can only be used for ethanol fermentation Technology with limited uses such as , etc., has low applicability in chemical applications expected in the future, such as HMF production, etc.
For example, if bagasse (pressed dregs of sugarcane) which is herb biomass is directly saccharified, the purity of glucose is about 66%, which is relatively high compared to the purity of industrial-grade glucose (for example, 95% or more). difference

Method used

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  • Method for producing xylan-containing composition and method for producing glucan-containing composition
  • Method for producing xylan-containing composition and method for producing glucan-containing composition
  • Method for producing xylan-containing composition and method for producing glucan-containing composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0330] (coarse crushing of biomass raw materials)

[0331]Measure 100 g of sugar cane bagasse [pressed residue of sugar cane, 34.9% by mass of glucan, 21.2% by mass of xylan, and 29.9% by mass of lignin] as a biomass raw material in dry mass, and put it into the batch Type vibrating mill ("MB-1" manufactured by Chuo Chemical Machinery Co., Ltd.: the total volume of the container is 3.5L, as rods, 13 SUS304 rods with a diameter of 30 mm, a length of 218 mm, and a circular cross-sectional shape are used, and the rod filling rate is 57%) , and pulverized for 5 minutes to obtain coarsely pulverized bagasse.

[0332] (Alkaline two-stage treatment - the first stage (process (1)))

[0333] Sodium hydroxide and ion-exchanged water were added in such a way that the whole treatment liquid became 940 parts by mass of water and 15 parts by mass of sodium hydroxide with respect to 100 parts by mass (dry mass) of the coarsely pulverized bagasse, and an autoclave (TOMY SEIKO CO., LTD., LSX...

Embodiment 1-2～10

[0351] Examples 1-2 to 10 (first stage (step (1)) treatment conditions)

[0352] The recovery and content of each component were confirmed in the same manner as in Example 1-1, except that the treatment conditions in the first step (step (1)) of the two-step alkali treatment were changed to the values ​​shown in Table 1. The results are shown in Table 1.

Embodiment 1-11～14

[0353] Examples 1-11 to 14 (second stage treatment conditions)

[0354] The recovery and content of each component were confirmed in the same manner as in Example 1-1, except that the treatment conditions of the second stage (step (2)) of the alkali two-stage treatment were changed to the amounts shown in Table 1. The results are shown in Table 1.

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Abstract

The present invention provides a method for producing a xylan-containing composition, a method for producing a glucan-containing composition, and a method for producing glucose. Using 8 to 70 parts by mass of alkali and 10 to 10,000 parts by mass of water relative to 100 parts by mass of the solid content of herbaceous biomass, with an H-factor in the range of 3 to 3,000 The herbaceous biomass is heat-treated to obtain primary alkali-treated biomass. The alkaline primary-treated biomass is immersed in an aqueous alkali solution having a concentration of 6% by mass to 60% by mass at a temperature of 0° C. to 50° C. to obtain secondary alkali-treated biomass. Take out the water-soluble components of the above-mentioned alkali-treated biomass to obtain a composition containing xylan, take out the water-insoluble components of the alkali-treated biomass for a second time, separate the composition containing dextran, and extract the above-mentioned composition containing dextran Enzymatic saccharification to obtain glucose.

Description

technical field [0001] The present invention relates to a method for producing a xylan-containing composition, a xylan-containing composition obtained by the method, a method for producing a glucan-containing composition, a method for producing glucose from biomass, and a glucan sugar composition. Background technique [0002] In recent years, hemicellulose, which is a component of inedible biomass, has attracted attention in various fields such as food, cosmetics, industrial use, and biomass energy. Among them, xylan, which is one of the main components of hemicellulose, is widely used as a raw material for xylitol, xylooligosaccharides, and the like in the food and cosmetic fields. In addition, since xylose obtained by hydrolyzing xylan can be used as a raw material for biomass ethanol, its effective utilization as biomass energy is expected. [0003] As a method for extracting xylan from plant raw materials, retort treatment, acid treatment, alkali treatment, enzyme tre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/14C07H3/02C08B1/00C12P19/02
CPCC12P19/02C07H1/00C08B37/0006C08B37/0009C08B37/0057
Inventor 田上明宏石原康宏吉田穰
Owner KAO CORP