Powdered green tea extract composition

Patent metadata

Field	Value
Publication number	US-12063944-B2
Application number	US-201917311167-A
Country	US
Kind code	B2
Filing date	Dec 6, 2019
Priority date	Dec 6, 2018
Publication date	Aug 20, 2024
Grant date	Aug 20, 2024

Abstract

Provided is a powdered green tea extract composition, including the following components (A) to (C): (A) non-polymer catechins; (B) quinic acid; and (C) a polysaccharide, wherein the powdered green tea extract composition has a volatile content of 5.6 mass % or less, wherein a mass ratio between the component (A) and the component (B), [(B)/(A)], is less than 0.2, wherein amass ratio between the component (A) and the component (C), [(C)/(A)], is 1.2 or more, wherein, when an absolute value (Δa*) of a difference between an a* value in an L*a*b* color system of the powdered green tea extract composition after storage under an atmosphere of 37° C. and 50% RH for 6 weeks and an a* value in the L*a*b* color system of the powdered green tea extract composition immediately after production is obtained, the Δa* of the powdered green tea extract composition is a value less than Δa* of a powdered green tea extract composition α which has the same mass ratio [(B)/(A)] as the mass ratio [(B)/(A)] of the powdered green tea extract composition, and which is free of the component (C), and wherein a change rate calculated by the following expression (2) is 5% or more: (Δa*−Δa1*)/Δa*×100 (2) where Δa1* and Δa* have the same meaning as Δa1* and Δa* described in Description.

First claim

The invention claimed is:

1. A powdered green tea extract composition, comprising the following components (A), (B), and (C):
(A) non-polymer catechins;
(B) quinic acid; and
(C) a polysaccharide,
wherein:
the powdered green tea extract composition has a volatile content of 5.6 mass % or less,
a mass ratio of the component (B) to the component (A), [(B)/(A)], is less than 0.2,
a mass ratio of the component (C) to the component (A), [(C)/(A)], is 1.2 or more,
when an absolute value (Δa*) of a difference between an a* value in an L*a*b* color system of the powdered green tea extract composition after storage under an atmosphere of 37° C. and 50% RH for 6 weeks and an a* value in the L*a*b* color system of the powdered green tea extract composition immediately after production is obtained, the Δa* of the powdered green tea extract composition is a value less than Δa* of a powdered green tea extract composition α which has the same mass ratio [(B)/(A)] as the mass ratio [(B)/(A)] of the powdered green tea extract composition, and which is free of the component (C), and
a change rate calculated by the following expression (2) is 5% or more:
(Δ a*−Δa 1 *)/Δ a*× 100  (2)

where Δa 1 * represents the absolute value of the difference between the a* value in the L*a*b* color system of the powdered green tea extract composition after storage under the atmosphere of 37° C. and 50% RH for 6 weeks and the a* value in the L*a*b* color system of the powdered green tea extract composition immediately after production, and Δa* represents an absolute value of a difference between an a* value in the L*a*b* color system of the powdered green tea extract composition α after storage under the atmosphere of 37° C. and 50% RH for 6 weeks and an a* value in the L*a*b* color system of the powdered green tea extract composition a immediately after production.

2. The powdered green tea extract composition according to claim 1 , wherein the component (C) is a polysaccharide derived from starch.

3. The powdered green tea extract composition according to claim 1 , wherein the component (C) has a dextrose equivalent of from 1 to 25.

4. The powdered green tea extract composition according to claim 1 , wherein the component (C) is maltodextrin.

5. The powdered green tea extract composition according to claim 1 , wherein the powdered green tea extract composition has an average particle size of from 1 μm to 1,000 μm.

6. The powdered green tea extract composition according to claim 1 , wherein the volatile content ranges from 1.9 mass % to 5.0 mass %.

7. The powdered green tea extract composition according to claim 1 , wherein the mass ratio of the component (B) to the component (A), [(B)/(A)], is from 1×10 −6 to 0.1.

8. The powdered green tea extract composition according to claim 1 , wherein the mass ratio of the component (C) to the component (A), [(C)/(A)], is from 1.7 to 15.

9. The powdered green tea extract composition according to claim 1 , wherein the change rate calculated by the expression (2) is from 40% to 99%.

10. The powdered green tea extract composition according to claim 1 , wherein a content of the component (A) is from 2 mass % to 45 mass %.

11. The powdered green tea extract composition according to claim 1 , wherein a content of the component (B) is from 0.00001 mass % to 3 mass %.

12. The powdered green tea extract composition according to claim 1 , wherein a content of the component (C) is from 41 mass % to 95 mass %.

13. The powdered green tea extract composition according to claim 1 , wherein a content of the component (A) is from 2 mass % to 45 mass %, a content of the component (B) is from 0.00001 mass % to 3 mass %, a content of the component (C) is from 47 mass % to 95 mass %, and the volatile content ranges from 1.9 mass % to 5.0 mass %.

Assignees

• Kao Corp

Inventors

• Shirakura Iyori
• Yamawaki Kenji
• Saito Jun
• Kinoshita Keita

Classifications

• A23V2002/00

  Food compositions, function of food ingredients or processes for food or foodstuffs · CPC title

• A23L29/212

  Starch; Modified starch; Starch derivatives, e.g. esters or ethers (containing starch hydrolysates, e.g. dextrin, A23L29/30) · CPC title

• A23L29/35

  Degradation products of starch, e.g. hydrolysates, dextrins; Enzymatically modified starches · CPC title

• A23F3/30

  Further treatment of dried tea extract; Preparations produced thereby, e.g. instant tea ({A23F3/166 takes precedence; } flavouring A23F3/40) · CPC title

• A23F3/22

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