Treatment method of saccharide solution
View Patent ↗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.
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 0.05 mass % to 2.0 mass % based on a mass of the saccharide contained in the saccharide solution.
7. The method according to claim 1 , wherein the heating of the saccharide solution is from one minute to 20 hours.
8. A method for producing an organic compound, comprising:
performing the method of claim 1 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.
9. 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 treated saccharide solution; and
culturing a microorganism capable of producing organic matter in a medium comprising the treated saccharide solution as a carbon source.
10. The method of claim 1 ,
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.