Table 2.

Contents of catechins and alkaloids in different tea samples.

No.	Compounds	Contents (mg/g)
		ck	2w	4w	8w	12w	16w
1	GA	0.19 ± 0.01a	0.18 ± 0.01a	0.18 ± 0.01a	0.17 ± 0.01a	0.18 ± 0.01a	0.18 ± 0.01a
2	GC	8.89 ± 0.05b	9.21 ± 0.13a	9.19 ± 0.05a	9.03 ± 0.11ab	8.98 ± 0.13ab	9.03 ± 0.05ab
3	THB	0.30 ± 0.01a	0.29 ± 0.02a	0.29 ± 0.01a	0.29 ± 0.01a	0.31 ± 0.01a	0.31 ± 0.01a
4	EGC	23.98 ± 0.22e	25.62 ± 0.23c	25.81 ± 0.03c	22.77 ± 0.08f	24.77 ± 0.02d	26.41 ± 0.25b
5	C	0.62 ± 0.01d	0.64 ± 0.01d	0.78 ± 0.01c	0.82 ± 0.01b	0.84 ± 0.01b	0.88 ± 0.02a
6	EGCG	34.08 ± 0.13f	35.56 ± 0.32ef	36.4 ± 0.42de	37.65 ± 1.07cd	39.30 ± 0.42bc	39.77 ± 0.58b
7	CAF	34.28 ± 0.18d	34.93 ± 0.39cd	35.57 ± 0.14bcd	36.11 ± 0.73bc	36.82 ± 0.96ab	38.26 ± 0.22a
8	EC	6.30 ± 0.17bc	6.73 ± 0.52ab	5.90 ± 0.05c	5.96 ± 0.10c	6.20 ± 0.09bc	5.99 ± 0.14bc
9	ECG	14.52 ± 0.26b	14.01 ± 0.94b	12.42 ± 0.02c	13.28 ± 0.15bc	13.12 ± 0.1bc	13.63 ± 0.39bc
	Total catechins	123.16	127.17	126.54	126.08	130.52	134.46

GA gallic acid, THB theobromine, EGC (−)-epigallocatechin, C (+)-catechin, CAF caffeine, EC (−)-epicatechin, EGCG (−)-epigallocatechin gallate, GC (−)-gallocatechin gallate, ECG (−)-epicatechin gallate.

Means (± SD) labeled with different letters within each row are significantly different by ANOVA (p = 0.05; n = 3).