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Process for production of aqueous refined sugar solution

A manufacturing method and solution technology, applied in sugar production, sugar juice purification, monosaccharide, etc., can solve the problems of ultrafiltration membrane clogging, difficulty in long-term and stable production of sugar solution, and inability to continuously produce sugar solution in a long-term and stable manner , to improve efficiency and prevent clogging

Inactive Publication Date: 2013-03-06
TORAY IND INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] As a method for removing such biomass residues, a filtration method using an ultrafiltration membrane is disclosed (Patent Document 6), but since the ultrafiltration membrane is clogged, it is difficult to stably produce an aqueous sugar solution for a long period of time
In addition, a method of combining filtration using a non-woven fabric with a pore size of 20 to 200 μm and an ultrafiltration membrane is disclosed (Patent Document 7). The clogging of the ultrafiltration membrane caused by biomass residues such as particulates, turbid substances, colloids, etc., cannot produce sugar solution continuously and stably for a long time

Method used

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  • Process for production of aqueous refined sugar solution
  • Process for production of aqueous refined sugar solution
  • Process for production of aqueous refined sugar solution

Examples

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Embodiment

[0144] Hereinafter, in order to demonstrate the manufacturing method of the refined sugar aqueous solution of this invention in more detail, an Example is given and demonstrated. However, the present invention is not limited to these Examples.

reference example 1）

[0145] (Reference example 1) Method for determining the average particle size by particle size distribution measurement

[0146] The particle size distribution was measured using ELS-8000 manufactured by Otsuka Electronics Co., Ltd., and the average particle size was obtained by obtaining an arithmetic mean value from the particle size values ​​and scattering intensity of the obtained scattering intensity distribution histogram.

[0147] In the present example and the comparative example, the preparation of the sample used for the particle size distribution measurement and the injection of the sample into the measurement cell were performed as follows. 100 g of the aqueous sugar solution obtained in each step was allowed to stand for 6 hours. After standing still, a pipette was inserted into the position about 1 cm from the surface of the sugar solution to suck up the sample, and then the sample was slowly poured into the small cell for particle size measurement attached to th...

reference example 2）

[0148] (Reference example 2) Analysis method of monosaccharide concentration

[0149] The concentration of monosaccharides (glucose and xylose) contained in the obtained aqueous sugar solution was quantified by comparing it with a standard sample under the HPLC conditions shown below.

[0150] Column: Luna NH2 (manufactured by Phenomenex)

[0151] Mobile phase: ultrapure water: acetonitrile = 25:75 (flow rate 0.6mL / min)

[0152] Reaction solution: no

[0153] Detection method: RI (differential refractive index)

[0154] Temperature: 30°C.

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Abstract

Disclosed is a method for producing an aqueous refined sugar solution, in which a biomass residue produced in a step of producing a sugar from a cellulose-containing biomass is removed in a step of producing an aqueous sugar solution, thereby preventing the clogging of a microfiltration membrane and / or an ultrafiltration membrane and producing the aqueous refined sugar solution steadily for a long period. Specifically disclosed is a process for producing an aqueous refined sugar solution using a cellulose-containing biomass as a raw material, which comprises the steps of: (1) decomposing the cellulose-containing biomass to produce an aqueous sugar solution; (2) causing the aggregation in the aqueous sugar solution produced in step (1) with an aggregating agent to produce an aqueous sugar solution having an average particle diameter of 2 [mu]m or more as measured by a particle size distribution method; and (3) allowing the aqueous sugar solution produced in step (2) to pass through a microfiltration membrane and / or an ultrafiltration membrane to filtrate the aqueous sugar solution and collecting an aqueous sugar solution from the permeated side of the microfiltration membrane and / or an ultrafiltration membrane.

Description

technical field [0001] The present invention relates to a process for the production of aqueous refined sugar solutions from cellulose-containing biomass. Background technique [0002] The 20th century of mass consumption and mass waste has come to an end. In the 21st century, which seeks to build an environment-friendly society, the depletion of fossil resources and the deepening of global warming are expected to promote biomass resources as a recycling resource. effective use. [0003] At present, countries such as the United States and Brazil are actively using sugarcane and corn as raw materials to produce bioethanol from biomass resources. This is because sugar cane and corn are rich in sucrose and starch, and it is easy to prepare and ferment an aqueous sugar solution from them. However, since sugarcane and corn are foods themselves, when they are used as raw materials, there is a serious problem that they will compete with food or feed, and the price of raw material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/02C13K1/02C07H3/02
CPCC13K1/02C13B20/165C13B99/00C13K13/002C13B20/14C12P2203/00
Inventor 花川正行广泽洋帆
Owner TORAY IND INC
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