Enzymatically polymerized gelling dextrans
US-11390692-B2 · Jul 19, 2022 · US
Enzymatically polymerized gelling dextrans
US12173091B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12173091-B2 |
| Application number | US-202217865904-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 15, 2022 |
| Priority date | Nov 5, 2014 |
| Publication date | Dec 24, 2024 |
| Grant date | Dec 24, 2024 |
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- Title
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Abstract
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Compositions are disclosed herein comprising dextran that comprises (i) 87-93 wt % glucose linked at positions 1 and 6; (ii) 0.1-1.2 wt % glucose linked at positions 1 and 3; (iii) 0.1-0.7 wt % glucose linked at positions 1 and 4; (iv) 7.7-8.6 wt % glucose linked at positions 1, 3 and 6; and (v) about 0.4-1.7 wt % glucose linked at (a) positions 1, 2 and 6, or (b) positions 1, 4 and 6. Aqueous forms of this composition have enhanced viscosity profiles. Further disclosed are methods of using compositions comprising dextran, such as increasing the viscosity of an aqueous composition. Enzymatic reactions for producing dextran are also disclosed.
First claim
Opening claim text (preview).
What is claimed is: 1. An isolated composition comprising water, sucrose and a glucosyltransferase enzyme comprising an amino acid sequence that is at least 98% identical to SEQ ID NO:1 or SEQ ID NO:2. 2. The isolated composition of claim 1 , wherein the glucosyltransferase enzyme comprises the amino acid sequence that is at least 98% identical to SEQ ID NO:1. 3. The isolated composition of claim 1 , wherein the glucosyltransferase enzyme comprises an amino acid sequence that is at least 99% identical to SEQ ID NO:1. 4. The isolated composition of claim 1 , wherein the glucosyltransferase enzyme comprises the amino acid sequence of SEQ ID NO:1. 5. The isolated composition of claim 1 , wherein the glucosyltransferase enzyme comprises the amino acid sequence that is at least 98% identical to SEQ ID NO:2. 6. The isolated composition of claim 1 , wherein the glucosyltransferase enzyme comprises an amino acid sequence that is at least 99% identical to SEQ ID NO:2. 7. The isolated composition of claim 1 , wherein the glucosyltransferase enzyme comprises the amino acid sequence of SEQ ID NO:2. 8. The isolated composition of claim 1 , comprised within an inert vessel. 9. The isolated composition of claim 8 , comprised within a stainless steel vessel, plastic vessel, or glass vessel. 10. The isolated composition of claim 1 , wherein the isolated composition comprises only one type of glucosyltransferase enzyme. 11. The isolated composition of claim 1 , wherein the isolated composition is cell-free. 12. The isolated composition of claim 1 , wherein the isolated composition is a food product. 13. The isolated composition of claim 2 , wherein the isolated composition is a food product. 14. The isolated composition of claim 3 , wherein the isolated composition is a food product. 15. The isolated composition of claim 4 , wherein the isolated composition is a food product. 16. The isolated composition of claim 12 , wherein the food product is a cultured dairy product. 17. The isolated composition of claim 16 , wherein the cultured dairy product is cottage cheese or cheese. 18. The isolated composition of claim 16 , wherein the cultured dairy product is sour cream. 19. The isolated composition of claim 16 , wherein the cultured dairy product is yogurt. 20. The isolated composition of claim 12 , wherein the food product is a frozen dessert or ice cream.
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Classifications
Dextran; Derivatives thereof · CPC title
Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin · CPC title
Dextran · CPC title
produced by the action of a glycosyl transferase, e.g. alpha-, beta- or gamma-cyclodextrins · CPC title
- C08B37/0021Primary
Dextran, i.e. (alpha-1,4)-D-glucan; Derivatives thereof, e.g. Sephadex, i.e. crosslinked dextran · CPC title
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- What does patent US12173091B2 cover?
- Compositions are disclosed herein comprising dextran that comprises (i) 87-93 wt % glucose linked at positions 1 and 6; (ii) 0.1-1.2 wt % glucose linked at positions 1 and 3; (iii) 0.1-0.7 wt % glucose linked at positions 1 and 4; (iv) 7.7-8.6 wt % glucose linked at positions 1, 3 and 6; and (v) about 0.4-1.7 wt % glucose linked at (a) positions 1, 2 and 6, or (b) positions 1, 4 and 6. Aqueous …
- Who is the assignee on this patent?
- Nutrition & Biosciences Usa 4 Inc
- What technology area does this patent fall under?
- Primary CPC classification C08B37/0021. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 24 2024 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).