Method for producing sugar solution
US-9212377-B2 · Dec 15, 2015 · US
Method for producing sugar solution
US9598740B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9598740-B2 |
| Application number | US-201213984566-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 17, 2012 |
| Priority date | Feb 18, 2011 |
| Publication date | Mar 21, 2017 |
| Grant date | Mar 21, 2017 |
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Abstract
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A method of producing a sugar liquid, includes filtering a cellulose-derived sugar liquid through one or more separation membranes selected from the group consisting of ultrafiltration membranes, nanofiltration membranes and reverse osmosis membranes, and washing the separation membrane(s) after filtration with warm water at a temperature of not less than 50° C.
First claim
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The invention claimed is: 1. A method of producing a sugar liquid, comprising: filtering a cellulose-derived sugar liquid through one or more separation membranes selected from the group consisting of ultrafiltration membranes, nanofiltration membranes and reverse osmosis membranes, and washing the separation membrane(s) after filtration with warm water at a temperature of 50 to 90° C., wherein said warm water comprises one or more compounds selected from the group consisting of ferulamide, coumaric acid, ferulic acid, coumaramide and vanillin. 2. The method according to claim 1 , wherein said warm water further comprises at least one of HMF and furfural. 3. The method according to claim 2 , wherein said warm water is a filtrate obtained by passing a cellulose-derived sugar liquid through a nanofiltration membrane(s) and/or reverse osmosis membrane(s). 4. The method according to claim 2 , wherein the temperature of said warm water is 75 to 90° C. 5. The method according to claim 2 , wherein said cellulose-derived sugar liquid is a cellulose-derived sugar liquid previously filtered through a microfiltration membrane(s). 6. The method according to claim 2 , wherein the pH of said warm water is 9 to 12. 7. The method according to claim 1 , wherein said warm water is a filtrate obtained by passing a cellulose-derived sugar liquid through a nanofiltration membrane(s) and/or reverse osmosis membrane(s). 8. The method according to claim 7 , wherein the temperature of said warm water is 75 to 90° C. 9. The method according to claim 7 , wherein the pH of said warm water is 9 to 12. 10. The method according to claim 1 , wherein the temperature of said warm water is 75 to 90° C. 11. The method according to claim 10 , wherein said cellulose-derived sugar liquid is a cellulose-derived sugar liquid previously filtered through a microfiltration membrane(s). 12. The method according to claim 10 , wherein the pH of said warm water is 9 to 12. 13. The method according to claim 1 , wherein said cellulose-derived sugar liquid is a cellulose-derived sugar liquid previously filtered through a microfiltration membrane(s). 14. The method according to claim 13 , wherein the pH of said warm water is 9 to 12. 15. The method according to claim 1 , wherein the pH of said warm water is 9 to 12. 16. The method according to claim 1 , wherein said warm water comprises one or more compounds selected from the group consisting of coumaric acid, ferulic acid, coumaramide, ferulamide and vanillin at a total concentration of 500 to 10,000 ppm.
Assignees
Inventors
Classifications
Nanofiltration · CPC title
using membranes, e.g. osmosis, ultrafiltration (electrodialysis C13B20/18) · CPC title
- C13K1/02Primary
obtained by saccharification of cellulosic materials (manufacture of fodder A23K10/32) · CPC title
Ultrafiltration · CPC title
Permeate series · CPC title
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- What does patent US9598740B2 cover?
- A method of producing a sugar liquid, includes filtering a cellulose-derived sugar liquid through one or more separation membranes selected from the group consisting of ultrafiltration membranes, nanofiltration membranes and reverse osmosis membranes, and washing the separation membrane(s) after filtration with warm water at a temperature of not less than 50° C.
- Who is the assignee on this patent?
- Kishimoto Junpei, Kurihara Hiroyuki, Minamino Atsushi, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C13K1/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 21 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).