Treatment method of saccharide solution, production method of treated saccharide solution, treated saccharide solution, production method of organic compound and culture method of microorganism

Patent metadata

Field	Value
Publication number	US-2016376616-A1
Application number	US-201615264017-A
Country	US
Kind code	A1
Filing date	Sep 13, 2016
Priority date	Mar 13, 2014
Publication date	Dec 29, 2016
Grant date	—

Abstract

The invention relates to a method for treating a solution containing a saccharide comprising a heat treatment step of heating the saccharide solution at a temperature of 100° C. or higher and 180° C. or lower and a reduction step of reacting a reducing agent with the saccharide solution heated in the heat treatment step, a method for producing a treated saccharide solution using the treatment method, a treated saccharide solution obtained through treatment by the treatment method, a method for producing an organic compound comprising an organic-matter production step of obtaining an organic compound by causing a microorganism capable of producing organic matter to act on an organic raw material containing the treated saccharide solution and a method for culturing a microorganism using the treated saccharide solution as a carbon source.

First claim

1 . A method for treating a saccharide solution, comprising:
heating the saccharide solution at a temperature of 100° C. to 180° C., to obtain a heated saccharide solution; and reacting a reducing agent with the heated saccharide solution.

2 . The method according to claim 1 ,
wherein the saccharide solution comprises a monosaccharide, a disaccharide, or both.

3 . The method according to claim 1 , wherein a pH of the saccharide solution during the reacting is 2 to 8.

4 . The method according to claim 1 , wherein a temperature of the saccharide solution during the reacting is 20° C. to 70° C.

5 . The method according to claim 1 , wherein the reducing agent is at least one compound selected from the group consisting of a sulfurous acid compound, a hyposulfurous acid compound, and a thiosulfuric acid compound.

6 . The method according to claim 1 , wherein an amount of the reducing agent used is 0.0.5 mass % to 2.0 mass % based on a mass of the saccharide contained in the saccharide solution.

7 . The method for according to claim 1 , wherein the heating of the saccharide solution is from one minute to 20 hours.

8 . (canceled)

9 . A treated saccharide solution obtained by the method according to claim 1 .

10 . A method for producing an organic compound, comprising:
heating a saccharide solution at a temperature of 100° C. to 180° C., to obtain a heated saccharide solution; reacting a reducing agent with the heated saccharide solution, to obtain a reduced saccharide solution; and contacting a microorganism capable of producing organic matter with an organic raw material comprising the reduced saccharide solution.

11 . A method for producing an organic compound, comprising contacting a microorganism capable of producing organic matter with an organic raw material comprising the treated saccharide solution according to claim 9 .

12 . A method comprising culturing a microorganism capable of producing organic matter in a medium comprising the treated saccharide solution according to claim 9 as a carbon source.

13 . A method for producing a treated saccharide solution by treating a saccharide solution using a reducing agent,
wherein the reducing agent is an ionic compound, the ionic compound comprises: an anion containing one or more kinds of sulfur having an oxidation number selected from the group consisting of −2, +2, +3 and +4; and ammonium ion, and the reducing agent reduces a carbonyl compound except for a saccharide contained in the saccharide solution.

Assignees

• Mitsubishi Chem Corp

Inventors

• Kawakami Kiminori
• Saito Yasuyo
• Matsumoto Takanao
• Aoyama Ryusuke
• Nitta Shigeki
• Utsunomiya Masaru

Classifications

• C13K13/002

  Xylose · CPC title

• C12P7/46 Primary

  Dicarboxylic acids having four or less carbon atoms, e.g. fumaric acid, maleic acid · CPC title

• C13K13/00

  Sugars not otherwise provided for in this class · CPC title

• C13K1/02

  obtained by saccharification of cellulosic materials (manufacture of fodder A23K10/32) · CPC title

• C13K11/00

  Fructose (separation from invert sugar C13K3/00) · CPC title