Table 4. The content (mg/g) of individual components in green tea extract by plasma treatment times

Compounds tR (min) Plasma treatment time (min)
0 (control) 20 40 60
Caffeine 8.6 110.7±1.6b1) 109.5±1.0b 108.7±0.9b 109.6±1.0b
EGCG 10.2 150.6±1.5a 124.4±0.8b 87.8±1.0c 14.7±1.7e
1 12.5 ND2) 14.2±0.6e 18.9±0.9e 20.4±1.1e
2 13.8 ND ND 12.7±0.8e 49.9±0.7d
All tested samples were examined in triplicated experiments. Means with different letters (a-e) within the column differ significantly (p<0.05)
ND, not detected.