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Date: 2025-05-04
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Black Tea P.E.
CERTIFICATE OF ANALYSIS
Item Specification Results
Batch No.   BTE-030626
Quantity   1,000kilos/40drums
Outer appearance Brown-red powder Complies
Particle size 90% through 80screen 80mesh
Bulk Density 40~50g/100ml 46g/100ml
Total Tea Polyphenols (byUV) >=60% 65.35%(Folin-Ciocalteu)
Total Catechins(by HPLC) >=30% 35.605%
      EGC    2.040%
      DL-C    3.605%
      EGCG   10.732%
      EC    6.506%
      GCG    0.242%
      ECG   12.480%
TFs   Present
Caffeine 7%~9% 8.591% (HPLC)
Ethyl acetate residue <=0.01% Complies
Extract Solvent 30% Grain alcohol(v/v) Complies
Moisture <=5.0% 3.36% (5g/105℃/2hrs)
Ash <=5.0% 0.85% (2g/525℃/3hrs)
Excipient None Complies
Heavy Metals <=10ppm Complies  (AA)
Arsenic (As) <=2ppm Complies  (AA)
Cadmium (Cd) <=1ppm Complies  (AA)
Lead (Pb) <=2ppm Complies  (AA)
Organic Residues <=1ppm Complies  (GC)
Pesticides Residues <=1ppm Complies  (GC)
Solvent Residues <=0.01% Complies  (GC)
Aflatoxins <=0.2ppb Absent (HPLC)
Total bacteria count <1000cfu/g Complies
Mold & Yeast <100/g Complies
E.Coli Negative Negative
Salmonella Negative Negative
Staphylococcus aureus Negative Negative
Tested date:   June 30,2003
Quality Control   ZCM

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