Diversity of Catechin in Northeast Indian Tea Cultivars

Table 1

Catechin profile of different green tea leaves (all units are in mg g⁻¹ except catechin ratio, data represent the mean of three replicates ± standard error).

Cultivar	EGC	+C	EC	EGCG	ECG	Total Catechin (CAT)	Dihydroxy Catechin (EC+ECG)	Trihydroxy Catechin; (EGC+EGCG)	CATRAT*
Assam varieties
TV2	53.3 ± 0.5	5.4 ± 0.4	21.2 ± 0.6	114.7 ± 0.9	34.2 ± 0.4	228.1 ± 1.0	55.4 ± 0.5	167.9 ± 1.0	0.3 ± 0.1
TV12	43.2 ± 0.4	6.0 ± 0.2	12.0 ± 0.1	119.8 ± 0.8	36.6 ± 0.8	217.6 ± 0.8	48.6 ± 0.7	163.0 ± 0.5	0.3 ± 0.0
TV13	55.2 ± 0.7	4.5 ± 0.7	12.8 ± 0.3	140.8 ± 1.7	43.0 ± 0.7	256.6 ± 1.5	54.8 ± 0.9	195.9 ± 1.7	0.3 ± 0.0
TV17	41.2 ± 1.6	9.5 ± 0.4	12.5 ± 0.9	129.4 ± 1.1	62.6 ± 1.7	256.0 ± 0.6	75.2 ± 1.6	170.6 ± 1.2	0.5 ± 0.2
TV21	58.3 ± 1.5	4.6 ± 0.5	12.3 ± 0.5	111.2 ± 0.4	34.3 ± 0.3	220.7 ± 0.9	46.7 ± 0.4	169.5 ± 1.1	0.3 ± 0.1
S3A1	62.3 ± 0.6	3.5 ± 0.2	14.6 ± 0.2	142.5 ± 0.7	46.2 ± 0.9	269.2 ± 0.7	61.3 ± 0.7	212.8 ± 1.5	0.3 ± 0.0
S3A3	63.1 ± 0.8	7.7 ± 0.1	12.5 ± 0.0	147.0 ± 0.6	43.6 ± 0.9	274.0 ± 0.4	55.4 ± 0.8	210.5 ± 0.2	0.3 ± 0.1
Tingamira	48.4 ± 0.4	5.3 ± 0.5	19.8 ± 0.6	109.7 ± 0.6	35.4 ± 0.3	218.5 ± 0.6	55.2 ± 0.4	158.0 ± 0.5	0.4 ± 0.0
TA17	49.9 ± 0.8	8.6 ± 0.2	10.0 ± 0.1	139.7 ± 0.8	37.9 ± 0.5	246.2 ± 1.0	48.0 ± 0.5	189.8 ± 1.1	0.3 ± 0.0
T3E3	50.8 ± 1.0	4.1 ± 0.6	20.0 ± 0.6	113.1 ± 0.8	35.0 ± 0.6	222.3 ± 0.9	54.8 ± 0.6	163.9 ± 0.8	0.3 ± 0.1
Betjan	48.4 ± 0.5	4.6 ± 0.4	20.2 ± 0.5	108.0 ± 0.9	34.4 ± 0.7	215.2 ± 0.9	54.6 ± 0.7	156.4 ± 0.9	0.4 ± 0.1
Cambod varieties
TV9	46.6 ± 0.4	4.5 ± 0.8	11.4 ± 0.7	122.6 ± 1.2	35.1 ± 0.7	220.3 ± 1.0	46.5 ± 0.8	169.2 ± 1.1	0.3 ± 0.1
TV18	31.0 ± 0.2	4.3 ± 0.1	5.7 ± 0.1	163.6 ± 0.2	60.8 ± 0.4	265.4 ± 0.3	65.9 ± 0.4	195.5 ± 0.2	0.3 ± 0.0
TV22	46.9 ± 0.1	7.2 ± 0.1	14.1 ± 0.7	131.0 ± 1.0	51.7 ± 0.1	250.9 ± 0.6	65.8 ± 0.2	177.9 ± 0.9	0.4 ± 0.1
TV23	39.1 ± 1.0	4.9 ± 0.3	19.8 ± 0.9	116.1 ± 0.5	41.1 ± 0.8	220.6 ± 0.6	60.0 ± 1.1	155.1 ± 0.2	0.4 ± 0.1
TV25	52.3 ± 0.6	8.1 ± 0.5	17.0 ± 0.5	122.0 ± 0.3	44.2 ± 0.1	243.7 ± 0.3	61.2 ± 0.2	174.4 ± 0.1	0.4 ± 0.0
TV26	32.1 ± 1.3	3.6 ± 0.6	12.3 ± 0.8	120.1 ± 0.5	41.7 ± 0.2	209.8 ± 0.4	54.0 ± 0.3	152.2 ± 0.4	0.4 ± 0.0
TV30	30.2 ± 1.7	5.1 ± 0.6	12.6 ± 0.8	91.4 ± 1.4	31.9 ± 0.7	175.0 ± 1.5	44.5 ± 0.8	125.4 ± 1.7	0.4 ± 0.1
Ex Cambod^#	38.9 ± 2.7	1.3 ± 0.2	17.5 ± 1.1	109.0 ± 0.6	28.2 ± 1.0	204.8 ± 1.5	45.6 ± 1.1	157.9 ± 1.8	0.3 ± 0.1
China varieties
TV7	18.2 ± 0.4	8.2 ± 0.7	17.2 ± 0.9	76.7 ± 1.3	45.5 ± 0.8	168.1 ± 1.5	60.7 ± 0.6	98.2 ± 1.8	0.7 ± 0.1
14/13/3	34.7 ± 0.4	2.4 ± 0.7	15.1 ± 1.4	85.0 ± 0.7	24.7 ± 0.6	157.4 ± 0.9	39.8 ± 1.2	119.7 ± 0.6	0.3 ± 0.1
14/100/10	16.5 ± 0.3	3.6 ± 0.7	6.6 ± 0.2	90.0 ± 0.3	25.4 ± 0.5	142.1 ± 0.2	32.0 ± 0.5	106.5 ± 0.4	0.3 ± 0.1
14/100/16	23.4 ± 0.4	2.9 ± 0.1	6.9 ± 0.1	77.6 ± 0.3	31.6 ± 0.4	142.4 ± 0.6	38.5 ± 0.4	101.1 ± 0.5	0.4 ± 0.0
14/100/6	24.3 ± 0.2	5.8 ± 0.1	7.0 ± 0.1	85.8 ± 0.3	25.9 ± 0.2	148.7 ± 0.2	32.8 ± 0.2	110.1 ± 0.3	0.3 ± 0.1
317/7	25.7 ± 0.2	6.1 ± 0.1	7.9 ± 0.3	77.7 ± 0.2	24.4 ± 0.2	141.7 ± 0.1	32.2 ± 0.2	103.5 ± 0.2	0.3 ± 0.0
317/2	31.2 ± 0.1	3.9 ± 0.1	15.4 ± 0.1	89.0 ± 0.1	27.1 ± 0.1	166.7 ± 0.1	42.5 ± 0.1	120.2 ± 0.1	0.4 ± 0.0
317/3	31.2 ± 0.2	2.0 ± 0.3	14.2 ± 0.3	86.5 ± 0.1	20.2 ± 0.1	154.1 ± 0.2	34.3 ± 0.3	117.7 ± 0.1	0.3 ± 0.0
317/4	33.4 ± 0.1	2.1 ± 0.1	7.5 ± 0.3	85.9 ± 0.1	25.2 ± 0.2	154.1 ± 0.2	32.67 ± 0.2	119.3 ± 0.1	0.3 ± 0.0
P126	34.0 ± 0.2	1.8 ± 0.2	15.4 ± 0.2	81.3 ± 0.1	21.2 ± 0.0	153.3 ± 0.1	36.5 ± 0.1	115.4 ± 0.1	0.3 ± 0.0
Vimtal	30.2 ± 0.2	3.0 ± 0.1	15.4 ± 0.1	88.0 ± 0.1	26.8 ± 0.1	157.6 ± 1.1	42.1 ± 0.1	118.6 ± 0.2	0.4 ± 0.0

*CATRAT = (EC+ECG)/(EGC+EGCG); ^#Ex Cambod: Extreme Cambod.