Appearance

Light yellow or brown powder with characteristic

Conforms

Inspection

 

 

Total polyphenols by UV

≥50.0%

50.4%

Catechines by HPLC

≥30.0%

34.6%

EGCG

 

≥15.0%

16.0%

CAF

by HPLC

≤10.0%

9.8%

Solubility

Water Soluble

Conforms

Loss on drying

Ash

≤5.0%

≤12.0%

3.5%

Conforms

Bulk density

0.3-0.6g/ml

Conforms

Sieve analysis

100% pass 80 mesh

Conforms

Heavy metals

≤10.0ppm

Conforms

Pb

≤2.0ppm

Conforms

As

≤1.0ppm

Conforms

Microbiology

 

 

Total plate count

≤1000CFU

Conforms

Yeast & mould

≤100CFU

Conforms

E. Coli

Negative

Negative

Salmonella

Pseudomonas Aerugunosa

Negative

Negative

Negative

Negative