Figure 1.
HPLC chromatograms of green tea (GT) beverage. Peaks: 1, gallic acid (GA); 2, epigallocatechin (EGC); 3, caffeine; 4, epigallocatechin gallate (EGCG); 5, epicatechin (EC); 6, gallocatechin gallate (GCG); 7, epicatechin gallate (ECG).
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