Preparation of poly alpha-1,3-glucan ethers
US-2015353649-A1 · Dec 10, 2015 · US
Increased poly (alpha 1,3 glucan) yield using tetraborate
US8962282B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8962282-B2 |
| Application number | US-201213719260-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2012 |
| Priority date | Dec 19, 2011 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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A process for production of poly (α 1,3 glucan) from a renewable feedstock, for applications in fibers, films, and pulps. The effect of addition of tetraborate in increasing the yield of the desired end products, poly (α 1,3 glucan) and fructose, and decreasing formation of the undesired by-product leucrose.
First claim
Opening claim text (preview).
What is claimed is: 1. A reaction solution for the synthesis of poly (alpha 1,3 glucan) comprising: a) at least one Streptococcus glucosyltransferase enzyme that synthesizes poly (alpha 1,3 glucan) from sucrose, wherein said glucosyltransferase enzyme comprises SEQ ID NO:1; b) tetraborate at a concentration from about 100 millimolar to about 150 millimolar; and c) sucrose, wherein the reaction solution pH is maintained from 6.85 to 7.75, whereby poly (alpha 1,3 glucan) i…
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- C12P19/18Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8962282B2 cover?
- A process for production of poly (α 1,3 glucan) from a renewable feedstock, for applications in fibers, films, and pulps. The effect of addition of tetraborate in increasing the yield of the desired end products, poly (α 1,3 glucan) and fructose, and decreasing formation of the undesired by-product leucrose.
- Who is the assignee on this patent?
- Du Pont
- What technology area does this patent fall under?
- Primary CPC classification C12P19/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 24 2015 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).