Items

Specification

Test method

Polyphenols20%

Polyphenols≥20%
Catechin≥10%
EGCG≥5%
Caffeine≤10%

HPLC

Polyphenols30%

Polyphenols≥30%
Catechin≥20%
EGCG≥8%
Caffeine≤10%

HPLC

Polyphenols40%

Polyphenols≥40%
Catechin≥25%
EGCG≥10%
Caffeine≤10%

HPLC

Polyphenols50%

Polyphenols≥50%
Catechin≥35%
EGCG≥15%
Caffeine≤10%

HPLC

Polyphenols60%

Polyphenols≥60%
Catechin≥40%
EGCG≥20%
Caffeine≤15%

HPLC

Polyphenols≥60%
Catechin≥40%
EGCG≥20%
Caffeine≤3%

HPLC

Polyphenols70%

Polyphenols≥70%
Catechin≥50%
EGCG≥25%
Caffeine≤10%

HPLC

Polyphenols≥70%
Catechin≥50%
EGCG≥25%
Caffeine≤3%

HPLC

Polyphenols80%

Polyphenols≥80%
Catechin≥60%
EGCG≥30%
Caffeine≤15%

HPLC

Polyphenols90%

Polyphenols≥90%
Catechin≥70%
EGCG≥35%
Caffeine≤10%

HPLC

Polyphenols95%

Polyphenols≥95%
Catechin≥70%
EGCG≥35%
Caffeine≤1%

HPLC

Polyphenols≥95%
Catechin≥70%
EGCG≥40%
Caffeine≤1%

HPLC

Polyphenols≥95%
Catechin≥75%
EGCG≥45%
Caffeine≤1%

HPLC

Polyphenols98%

Polyphenols≥98%
Catechin≥80%
EGCG≥50%
Caffeine≤0.5%

HPLC

Polyphenols≥98%
Catechin≥80%
EGCG≥55%
Caffeine≤0.5%

HPLC

Polyphenols≥98%
Catechin≥90%
EGCG≥60%
Caffeine≤0.5%

HPLC