台灣綠茶EGCG成分分析表 | | | | | |
| Table : Some chemical components of green tea in Taiwan |
| | | | | | content | | | |
| chemical components | | % dry weight | % water soluble | |
| Water | | | | 1.79 | | | | |
| Water soluble | | | 33.98 | | | | |
| Caffeine | | | | 2.56 | | 7.54 | | |
| Gallic acid | | | 0.05 | | 0.15 | | |
| (+) | Gallocatechin | | | 0.26 | | 0.75 | | |
| (-) | Epigallocatechin | | | 3.27 | | 9.62 | | |
| (+) | Catechin | | | | 0.06 | | 0.16 | | |
| (-) | Epicatechin | | | 0.4 | | 1.18 | | |
| (-) | Epigallocatechin gallate | | 3.55 | | 10.45 | | |
| (-) | Gallocatechin gallate | | 0.99 | | 2.9 | | |
| (-) | Epicatechin gallate | | 0.43 | | 1.27 | | |
| Total catechins | | | 8.998 | | 26.48 | | |
| note: 1. Catechin shown in italic forms are heat- converted catechin | |
| 2. Total catecins= Gallic acid +GC + EGC+Catechin+EC+EGCG+GCG+ECG |
| 3. Date were the mean of four independent experiments | | |
| 資料來源:綠茶生技有限公司, 2004 | | | EGCG 39.45% TC | |