The Galloyl Catechins Contributing to Main Antioxidant Capacity of Tea Made from Camellia sinensis in China

Table 4

EC50 values (concentration causing 50% inhibition) and anti-DPPH radical efficiency (AE) by tea extract.

Sample of teas	EC50 (mg tea/mL)	AE
Green tea
Bi luo chun	0.148	0.830
Huang shan mao feng	0.142	0.848
Long jing	0.246	0.609
Lu an gua pian	0.203	0.693
Xin yang mao jian	0.166	0.780
Mean value	0.181	0.761
Oolong tea
Da hong pao	0.349	0.456
Rou gui	0.365	0.438
Shui xian	0.290	0.538
Tai wan wu long	0.187	0.728
Tie guan yin	0.299	0.525
Mean value	0.298	0.550
Black tea
Dian cha	0.268	0.572
He nan hong cha	0.418	0.378
Qi men hong cha	0.437	0.360
Tan yang gong fu	0.339	0.470
Zheng shan hong cha	0.247	0.606
Mean value	0.342	0.489
Dark tea
Bai xing fu cha	0.764	0.117
Qian liang	0.634	0.199
Liu bao cha	0.459	0.339
Qi zi bing	0.372	0.430
Sheng pu’er	0.359	0.444
Mean value	0.518	0.324