Table 2. Compound Identification for the Green Tea Chromatogram Shown in Figure 1.
| antioxidant compounds | ret. time | other main compounds | ret. time |
|---|---|---|---|
| caffeine | 37.79 | phosphate | 16.63 |
| gallic acid | 42.23 | malic acid | 25.76 |
| epicatechin | 63.83 | 5-oxoproline | 26.42 |
| catechin | 64.32 | fructose | 37.20 |
| epigallocatechin (EGC) | 65.18 | quinic acid | 39.03 |
| α-tocoferol (trace) | 68.03 | glucose | 43.22 |
| chlorogenic acid (trace) | 68.11 | myo-inositol | 45.93 |
| epicatechin gallate | 78.14 | sucrose | 59.80 |
| epigallocatechin gallate (EGCG) | 78.83 | disaccharide | 61.77 |
| gallocatechin gallate | 79.41 | disaccharide or trisaccharide | 72.18 |