Table 1.

Catechin [(−)-epicatechin (EC), (−)-epigallocatechin (EGC), (−)-EC gallate (ECG), and (−)-EGC gallate (EGCG)] contents in oolong tea infusions of different cultivation altitudes.

Catechins (mM)	Altitude (m)
	170	200	800	850	900	950	1100	1300	1500	1600
EC	0.49 ± 0.12	0.45 ± 0.08	0.36 ± 0.04	0.30 ± 0.02	0.34 ± 0.03	0.32 ± 0.10	0.34 ± 0.05	0.37 ± 0.01	0.35 ± 0.02	0.28 ± 0.07
ECG	0.15 ± 0.04	0.18 ± 0.03	0.12 ± 0.01	0.08 ± 0.01	0.09 ± 0.01	0.08 ± 0.03	0.09 ± 0.01	0.07 ± 0.01	0.07 ± 0.01	0.05 ± 0.01
EGC	2.56 ± 0.29	2.3 ± 0.34	2.21 ± 0.37	2.03 ± 0.18	2.00 ± 0.24	1.91 ± 0.50	1.93 ± 0.14	1.90 ± 0.08	1.95 ± 0.06	1.57 ± 0.33
EGCG	1.92 ± 0.41	2.01 ± 0.30	1.61 ± 0.24	1.21 ± 0.10	1.20 ± 0.11	1.08 ± 0.27	1.17 ± 0.12	0.85 ± 0.04	0.99 ± 0.02	0.67 ± 0.10
Total	5.12 ± 0.86	4.93 ± 0.74	4.30 ± 0.66	3.62 ± 0.27	3.64 ± 0.38	3.39 ± 0.88	3.53 ± 0.31	3.19 ± 0.14	3.36 ± 0.10	2.58 ± 0.51

Data are mean ± standard error of three replicates.