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Date: 2024-05-12
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Tea Pigments
Certificate of Analysis
Item Specification RESULTS
Batch No.   020920
Quantity   50kilos
Outer appearance Red-Brown powder Red-Brown powder
Taste Astrigent Astrigent
Particle size 100% through 80screen 100% through 80screen
Theaflavins >=40% 41.51%  UV-VIS
Thearubigin    
Theabrownin    
Catechins >=20% HPLC 26.09%   HPLC
  EGCG   11.04%   HPLC
  ECG    7.30%   HPLC
Caffeine <=4.0% 3.77%    HPLC
Loss on drying(5h at 105℃) <6% 3.01%
Ash (3h at 600℃) <2.0% 0.27%
Heavy metals(Pb) <10ppm <10ppm
Arsenic(as AS2O3) <2ppm <2ppm
Total bacteria count <1000cfu/g <1000cfu/g
Mold & Yeast <100/g <100/g
E.Coli Negative Negative
Salmonella Negative Negative
Staphylococcus aureus Negative Negative
Quality Control   ZCM

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