Table 6.

Content of phenol compounds in L. barbarum and L. chinense leaves.

	1B	2B	3B	4B
	µg/g	µg/g	µg/g	µg/g
Neochlorogenic acid	466.43 ± 9.72	8655.31 ± 266.61	324.82 ± 3.11	508.14 ± 8.88
Tyrosol	513.51 ± 18.71	1921.88 ± 19.14	1105.65 ± 24.58	716.23 ± 60.40
Quercetin-3-O-Rut-7-O-Glu a	nd	nd	nd	nd
Quercetin-3-O-Soph-7-O-Rha b	nd	nd	nd	nd
Kaempferol-3-O-Rut-7-O-Glu c	610.30 ± 38.4	108.25 ± 2.66	99.45 ± 8.51	nd
Chlorogenic acid	6354.36 ± 204.81	3048.82 ± 13.93	1353.13 ± 12.24	3139.02 ± 132.54
Cryptochlorogenic acid	492.43 ± 65.23	230.46 ± 2.35	161.93 ± 1.17	429.92 ± 6.80
p-Coumaric acid	nd	49.49 ± 0.23	24.55 ± 0.27	585.47 ± 8.80
Ferulic acid	nd	nd	14.58 ± 0.44	10.53 ± 1.80
Rutin	5756.65 ± 340.5	1808.75 ± 19.37	743.50 ± 4.13	5233.17 ± 264.88
	1C	2C	3C	4C
	µg/g	µg/g	µg/g	µg/g
Neochlorogenic acid	439.58 ± 13.80	325.54 ± 10.91	432.58 ± 7.24	423.96 ± 9.50
Tyrosol	596.37 ± 29.25	2057.51 ± 30.74	118.40 ± 1.54	1303.28 ± 43.07
Quercetin-3-O-Rut-7-O-Glu a	195.39 ± 2.33	939.49 ± 21.03	268.94 ± 11.07	205.60 ± 3.04
Quercetin-3-O-Soph-7-O-Rha b	1946.70 ± 38.95	1011.92 ± 27.54	344.02 ± 5.58	1271.42 ± 16.21
Kaempferol-3-O-Rut-7-O-Glu c	380.72 ± 3.07	91.77 ± 4.83	170.21 ± 10.04	366.13 ± 10.04
Chlorogenic acid	3811.85 ± 41.41	7721.47 ± 130.84	6056.74 ± 149.80	2153.11 ± 187.22
Cryptochlorogenic acid	nd	nd	nd	nd
p-Coumaric acid	nd	nd	nd	nd
Ferulic acid	670.72 ± 16.53	198.96 ± 5.39	451.57 ± 12.85	1201.89 ± 24.12
Rutin	506.21 ± 8.47	432.63 ± 6.40	1029.45 ± 57.52	375.60 ± 14.95

Data are reported as the mean ± standard deviation of three independent measurements (n = 3) and are expressed on a dry weight basis; ^a quercetin-3-O-rutinoside-7-O-glucoside, ^b quercetin-3-O-sophoroside-7-O-rhamnoside, and ^c kaempferol-3-O-rutinoside-7-O-glucoside. Not detected (nd).