초록 ▼

This invention relates to a tea extract, which is reduced in bitterness, sourness and coarse taste, has a good affinity with various beverages, and contains non-polymer catechins that are highly stable in a sterilized beverage to which the tea extract is added. A purified tea extract, including: (1)

This invention relates to a tea extract, which is reduced in bitterness, sourness and coarse taste, has a good affinity with various beverages, and contains non-polymer catechins that are highly stable in a sterilized beverage to which the tea extract is added. A purified tea extract, including: (1) non-polymer catechins (a) in a solid content accounting for from 45 to 90 wt. %;(2) a percentage of gallate body in the non-polymer catechins being from 0.001 to 47 wt. %; and(3) a weight ratio of a gallic acid/the non-polymer catechins being not greater than 0.3.

대표청구항 ▼

1. A purified tea extract, comprising non-polymer catechins; whereina content of the non-polymer catechins in a solid content of the purified tea extract is from 45 to 90 wt. %,percent by weight of gallate body in the non-polymer catechins is from 0.001 to 35 wt. %, anda weight ratio of gallic acid/

1. A purified tea extract, comprising non-polymer catechins; whereina content of the non-polymer catechins in a solid content of the purified tea extract is from 45 to 90 wt. %,percent by weight of gallate body in the non-polymer catechins is from 0.001 to 35 wt. %, anda weight ratio of gallic acid/non-polymer catechins is not greater than 0.07. 2. The purified tea extract according to claim 1, wherein a weight ratio of free amino acids/non-polymer catechins in the purified tea extract is not greater than 0.08. 3. The purified tea extract according to claim 1, wherein a weight ratio of (sucrose+glucose)/non-polymer catechins in the purified tea extract is not greater than 0.15. 4. The purified tea extract according to claim 1, wherein a weight ratio of caffeine/non-polymer catechins in the purified tea extract is not greater than 0.2. 5. The purified tea extract according to claim 1, wherein the purified tea extract is a green tea extract. 6. A food comprising the purified tea extract according to claim 1. 7. A beverage comprising the purified tea extract according to claim 1. 8. The purified tea extract according to claim 2, wherein a weight ratio of (sucrose+glucose)/non-polymer catechins in the purified tea extract is not greater than 0.15. 9. The purified tea extract according to claim 2, wherein a weight ratio of caffeine/non-polymer catechins in the purified tea extract is not greater than 0.2. 10. The purified tea extract according to claim 3, wherein a weight ratio of caffeine/non-polymer catechins in the purified tea extract is not greater than 0.2. 11. The purified tea extract according to claim 1, wherein the non-polymer catechins is a catechin or catechin mixture consisting of at least one material selected from the group consisting of a catechin, a gallocatechin, a catechingallate, a gallocatechingallate, a epicatechin, a epigallocatechin, a epicatechingallate and a epigallocatechingallate. 12. The purified tea extract according to claim 1, wherein the gallate body consists of at least one material selected from the group consisting of an epigallocatechingallate, a gallocatechingallate, an epicatechingallate and a catechingallate. 13. The purified tea extract according to claim 1, wherein said solid content of the purified tea extract is from 50 to 88 wt. %. 14. The purified tea extract according to claim 1, wherein said solid content of the purified tea extract is from 55 to 85 wt. %. 15. The purified tea extract according to claim 1, wherein said solid content of the purified tea extract is from 60 to 83 wt. %. 16. The purified tea extract according to claim 1, wherein the percent by weight of the gallate body in the non-polymer catechins is from 0.01 to 35 wt. %. 17. The purified tea extract according to claim 1, wherein the percent by weight of the gallate body in the non-polymer catechins is from 0.1 to 35 wt. %. 18. The purified tea extract according to claim 1, wherein the percent by weight of the gallate body in the non-polymer catechins is from 1 to 35 wt. %. 19. The purified tea extract according to claim 1, wherein the percent by weight of the gallate body in the non-polymer catechins is from 5 to 35 wt. %.