IP Library Granted Patent US 8,202,900
Granted Patent B2
US 8,202,900 · App. 12/212,947 · Granted Jun 19, 2012

Method for stabilizing quercetin

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Quick Facts
Patent No.
US 8,202,900
App. No.
12/212,947
Granted
Jun 19, 2012
Kind
B2
Abstract

This invention relates to a method for stabilizing quercetin by placing it in a solution containing vitamin B3 and vitamin C and assessing stability of the quercetin in the mixture.

Claims (18)

1. A method for stabilizing quercetin, comprising placing quercetin in a solution containing vitamin B3 and vitamin C to form a mixture, wherein the quercetin in the mixture is stable for at least 12 days.

2. The method of claim 1 , wherein a weight ratio between quercetin, vitamin B3, and vitamin C is 1:0.02-1:0.2-2.5.

3. The method of claim 2 , wherein the weight ratio is 1:0.05-0.2:0.5-1.

4. The method of claim 2 , wherein the weight ratio is 1:0.1-0.2:0.5-1.

5. The method of claim 2 , wherein the weight ratio is 1:0.04:1.

6. The method of claim 2 , wherein the weight ratio is 1:0.08:1.

7. The method of claim 1 , wherein the mixture is in suspended form.

8. The method of claim 1 , wherein quercetin has a concentration in the mixture from 20 mg/L to 10 g/L.

9. The method of claim 8 , wherein the concentration is 500 mg/L to 2 g/L.

10. The method of claim 1 , wherein the solution is an aqueous solution.

11. The method of claim 10 , wherein a weight ratio between quercetin, vitamin B3, and vitamin C is 1:0.02-1:0.2-2.5.

12. The method of claim 11 , wherein the weight ratio is 1:0.05-0.2:0.5-1.

13. The method of claim 11 , wherein the weight ratio is 1:0.1-0.2:0.5-1.

14. The method of claim 11 , wherein the weight ratio is 1:0.04:1.

15. The method of claim 11 , wherein the weight ratio is 1:0.08:1.

16. The method of claim 10 , wherein the mixture is in suspended form.

17. The method of claim 10 , wherein quercetin has a concentration in the mixture from 20 mg/L to 10 g/L.

18. The method of claim 8 , wherein the concentration is 500 mg/L to 2 g/L.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 18, 2020
From: QUERCEGEN PHARMA A.G.
To: LINES, THOMAS CHRISTIAN
Reel/Frame 052151/0234 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 18, 2020
From: LINES, THOMAS CHRISTIAN
To: QUERCIS PHARMA A.G.
Reel/Frame 052153/0756 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 13, 2020
From: LINES, THOMAS; QUERCEGEN PHARMA LLC; QUERCEGEN PHARMA LLP; QUERCEGEN TECHNOLOGIES; QUERCEGEN PHARMACEUTICALS, LLC; QUERCEGEN HOLDINGS, LLC; NEW SUN NUTRITION, LLC; THE FRS COMPANY
To: QUERCEGEN PHARMA, AG.
Reel/Frame 052110/0530 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 20, 2010
From: QUERCEGEN PHARMA LLC
To: QUERCEGEN PHARMACEUTICALS LLC
Reel/Frame 025527/0246 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 18, 2008
From: LINES, THOMAS CHRISTIAN
To: QUERCEGEN PHARMA LLC
Reel/Frame 021550/0259 →