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

Table 2

The content of total polyphenols, total catechins, and individual catechins in 20 samples from four types of tea ().

Samples of tea	EGC (%)	Catechin (%)	EC (%)	EGCG (%)	ECG (%)	Nonesterified catechins (%)	Esterified catechins (%)	Total catechins (%)	Total polyphenols (%)
Green tea
Bi luo chun	1.13 ± 0.06	0.92 ± 0.04	1.84 ± 0.03	14.39 ± 0.41	5.99 ± 0.02	3.89 ± 0.13	20.38 ± 0.43	24.27 ± 0.56	32.36 ± 0.93
Huang shan mao feng	0.94 ± 0.03	0.85 ± 0.04	1.83 ± 0.05	14.11 ± 0.47	5.61 ± 0.04	3.62 ± 0.12	19.72 ± 0.51	23.34 ± 0.63	26.86 ± 0.49
Long jing	0.62 ± 0.02	0.55 ± 0.05	1.08 ± 0.01	8.13 ± 0.39	3.61 ± 0.11	2.25 ± 0.08	11.74 ± 0.50	13.99 ± 0.58	18.17 ± 0.71
Lu an gua pian	0.37 ± 0.01	0.27 ± 0.01	0.61 ± 0.03	5.25 ± 0.26	1.85 ± 0.03	1.25 ± 0.05	7.10 ± 0.29	8.35 ± 0.34	10.88 ± 0.06
Xin yang mao jian	0.96 ± 0.02	0.74 ± 0.03	1.49 ± 0.01	12.63 ± 0.23	5.26 ± 0.14	3.19 ± 0.06	17.89 ± 0.37	21.08 ± 0.43	26.94 ± 0.09
Mean value	0.80 ± 0.03	0.67 ± 0.03	1.37 ± 0.03	10.90 ± 0.35	4.46 ± 0.07	2.84 ± 0.09	15.37 ± 0.42	18.21 ± 0.51	23.04 ± 0.46
Oolong tea
Da hong pao	0.63 ± 0.02	0.66 ± 0.03	0.74 ± 0.03	5.59 ± 0.22	2.08 ± 0.02	2.03 ± 0.08	7.67 ± 0.24	9.70 ± 0.32	13.16 ± 0.09
Rou gui	0.44 ± 0.02	0.55 ± 0.01	0.52 ± 0.02	4.57 ± 0.09	1.66 ± 0.06	1.51 ± 0.05	6.23 ± 0.15	7.74 ± 0.20	10.35 ± 0.08
Shui xian	0.68 ± 0.01	0.81 ± 0.02	0.90 ± 0.02	7.23 ± 0.31	2.43 ± 0.01	2.39 ± 0.05	9.66 ± 0.32	12.05 ± 0.37	16.18 ± 0.27
Tai wan wu long	1.16 ± 0.02	1.44 ± 0.05	1.53 ± 0.06	13.08 ± 0.27	4.17 ± 0.06	4.13 ± 0.13	17.25 ± 0.33	21.38 ± 0.46	29.73 ± 0.04
Tie guan yin	0.68 ± 0.01	0.77 ± 0.02	0.84 ± 0.02	6.86 ± 0.07	2.36 ± 0.01	2.29 ± 0.05	9.22 ± 0.08	11.51 ± 0.13	15.69 ± 0.73
Mean value	0.72 ± 0.02	0.85 ± 0.03	0.91 ± 0.03	7.47 ± 0.19	2.54 ± 0.03	2.47 ± 0.07	10.01 ± 0.22	12.48 ± 0.30	17.02 ± 0.24
Black tea
Dian cha	2.41 ± 0.09	2.50 ± 0.04	0.43 ± 0.01	2.26 ± 0.03	4.70 ± 0.15	5.34 ± 0.14	6.96 ± 0.18	12.30 ± 0.32	16.75 ± 0.74
He nan hong cha	1.58 ± 0.03	1.63 ± 0.06	0.31 ± 0.01	1.55 ± 0.02	3.42 ± 0.01	3.52 ± 0.10	4.97 ± 0.03	8.49 ± 0.13	11.53 ± 0.04
Qi men hong cha	1.50 ± 0.03	1.59 ± 0.05	0.28 ± 0.01	1.31 ± 0.05	3.38 ± 0.11	3.37 ± 0.09	4.69 ± 0.16	8.06 ± 0.25	13.01 ± 0.17
Tan yang gong fu	1.75 ± 0.05	1.97 ± 0.04	0.32 ± 0.01	1.55 ± 0.02	4.19 ± 0.13	4.04 ± 0.10	5.74 ± 0.15	9.78 ± 0.25	13.73 ± 0.04
Zheng shan hong cha	2.57 ± 0.09	2.66 ± 0.12	0.45 ± 0.01	2.04 ± 0.07	5.63 ± 0.01	5.68 ± 0.22	7.67 ± 0.08	13.35 ± 0.30	18.17 ± 0.12
Mean value	1.96 ± 0.06	2.07 ± 0.06	0.36 ± 0.01	1.74 ± 0.04	4.26 ± 0.08	4.39 ± 0.13	6.01 ± 0.12	10.40 ± 0.25	14.64 ± 0.22
Dark tea
Bai xing fu cha	0.22 ± 0.01	0.77 ± 0.01	1.07 ± 0.03	0.36 ± 0.01	1.92 ± 0.03	2.06 ± 0.05	2.28 ± 0.04	4.34 ± 0.09	7.82 ± 0.29
Qian liang	0.28 ± 0.03	1.02 ± 0.04	1.35 ± 0.07	0.50 ± 0.02	2.52 ± 0.05	2.65 ± 0.14	3.02 ± 0.07	5.67 ± 0.21	9.29 ± 0.38
Liu bao cha	0.34 ± 0.01	1.35 ± 0.02	1.87 ± 0.04	0.72 ± 0.02	3.41 ± 0.17	3.56 ± 0.07	4.13 ± 0.19	7.69 ± 0.26	13.28 ± 0.60
Qi zi bing	0.35 ± 0.01	1.48 ± 0.07	2.02 ± 0.07	0.79 ± 0.04	3.95 ± 0.13	3.85 ± 0.15	4.74 ± 0.17	8.59 ± 0.32	14.80 ± 0.03
Sheng pu’er	0.39 ± 0.02	1.97 ± 0.02	2.51 ± 0.09	0.93 ± 0.02	4.73 ± 0.13	4.87 ± 0.13	5.66 ± 0.15	10.53 ± 0.28	16.29 ± 0.17
Mean value	0.32 ± 0.02	1.32 ± 0.03	1.76 ± 0.06	0.66 ± 0.02	3.31 ± 0.10	3.40 ± 0.11	3.97 ± 0.12	7.36 ± 0.23	12.30 ± 0.29