Green tea extract composition

Patent metadata

Field	Value
Publication number	US-9968109-B2
Application number	US-201415021117-A
Country	US
Kind code	B2
Filing date	Oct 29, 2014
Priority date	Oct 29, 2013
Publication date	May 15, 2018
Grant date	May 15, 2018

Abstract

Provided is a green tea extract composition, comprising the following components (A), (B), (C), and (D): (A) non-polymer catechins; (B) a sugar; (C) iron; and (D) caffeine, the green tea extract composition having: a content of the non-polymer catechins (A) of from 25 to 45 mass %; a content of the sugar (B) of from 6 to 13 mass %; a mass ratio between the sugar (B) and the iron (C), [(C)/(B)], of from 0.000005 to 0.00016; a mass ratio between the sugar (B) and the caffeine (D), [(D)/(B)], of from 0.2 to 0.7; and a water content of 10 mass % or less.

First claim

The invention claimed is:

1. A green tea extract composition, comprising components (A), (B), (C), and (D):
(A) at least one non-polymer catechin;
(B) a sugar;
(C) iron; and
(D) caffeine,
the green tea extract composition having:
a content of said at least one non-polymer catechin (A) of from 25 to 45 mass %;
a content of sugar (B) of from 6 to 13 mass %;
a mass ratio between sugar (B) and iron (C), [(C)/(B)], of from 0.000005 to 0.00014;
a mass ratio between sugar (B) and caffeine (D), [(D)/(B)], of from 0.2 to 0.7; and
a water content (E) of 10 mass % or less.

2. The green tea extract composition according to claim 1 , wherein a mass ratio between iron (C) and caffeine (D), [(C)/(D)], is from 0.00003 to 0.00045.

3. The green tea extract composition according to claim 1 , wherein a content of iron (C) is from 0.00001 to 0.0016 mass %.

4. The green tea extract composition according to claim 1 , wherein a mass ratio between said at least one non-polymer catechin (A) and sugar (B), [(B)/(A)], is from 0.1 to 0.5.

5. The green tea extract composition according to claim 1 , wherein a mass ratio between said at least one non-polymer catechin (A) and caffeine (D), [(D)/(A)], is from 0.04 to 0.17.

6. The green tea extract composition according to claim 1 , wherein a ratio of gallate forms in said at least one non-polymer catechin is from 30 to 57 mass %.

7. The green tea extract composition according to claim 1 , wherein a content of said at least one non-polymer catechin (A) is from 27 to 44 mass %.

8. The green tea extract composition according to claim 1 , wherein each of said at least one non-polymer catechin (A) is selected from the group consisting of epigallocatechin gallate, gallocatechin gallate, epicatechin gallate, catechin gallate, epigallocatechin, gallocatechin, epicatechin, and catechin.

9. The green tea extract composition according to claim 1 , wherein a content of sugar (B) is from 6.5 to 12.5 mass %.

10. The green tea extract composition according to claim 1 , wherein sugar (B) is at least one member selected from the group consisting of glucose, fructose and sucrose.

11. The green tea extract composition according to claim 1 , wherein a content of caffeine (D) is from 2 to 6 mass %.

12. The green tea extract composition according to claim 1 , wherein an absolute value (Δa*) of a difference between the a* value of the green tea extract composition after storage at 55° C. for 14 days, and the a* value of the green tea extract composition before the start of the storage is less than 6.

13. A packaged beverage, comprising the green tea extract composition of claim 1 blended therein.

14. An instant beverage powder, comprising the green tea extract composition of claim 1 blended therein.

15. A green tea extract composition, comprising components (A), (B), (C), and (D):
(A) at least one non-polymer catechin;
(B) a sugar;
(C) iron; and
(D) caffeine,
the green tea extract composition having:
a content of said at least one non-polymer catechin (A) of from 25 to 45 mass %;
a content of sugar (B) of from 6 to 13 mass %;
a mass ratio between sugar (B) and iron (C), [(C)/(B)], of from 0.000005 to 0.00014;
a mass ratio between sugar (B) and caffeine (D), [(D)/(B)], of from 0.2 to 0.7;
a mass ratio between said at least one non-polymer catechin (A) and caffeine (D), [(D)/(A)], of from 0.04 to 0.17; and
a water content (E) of 10 mass % or less,
wherein an absolute value (Δa*) of a difference between the a* value of the green tea extract composition after storage at 55° C. for 14 days, and the a* value of the green tea extract composition before the start of the storage is less than 6.

Assignees

• Kao Corp

Inventors

• Shimoda Yuichi
• Takahashi Yoshiaki

Classifications

• A23F3/38 Primary

  Reducing or removing alkaloid content from tea extract · CPC title

• A23F3/22

  Drying or concentrating tea extract {(A23F3/166 takes precedence)} · CPC title

• A23F3/163

  Liquid or semi-liquid tea extract preparations, e.g. gels or liquid extracts in solid capsules · CPC title