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Table 2 Volatile components and their relative contents in Yunnan oolong teas, Fujian oolong tea, Green teas, Black teas, and Pu-erh teas

From: Oolong tea made from tea plants from different locations in Yunnan and Fujian, China showed similar aroma but different taste characteristics

No. Retention time Compound Yunnan oolong tea (n = 5) Fujian oolong tea (n = 5) Green tea (n = 10) Black tea (n = 10) Pu-erh tea (n = 10)
1 4.140 Hexanal 0.00a* 0.00a 0.00a 0.23 ± 0.12b 0.00a
2 5.733 (E)-2-Hexenal 0.00a 0.00a 0.00a 0.1 ± 0.09b 0.00a
3 5.746 cis-3-Hexen-1-ol 0.00a 0.00a 0.00a 0.27 ± 0.23b 0.00a
4 6.260 cis-2-Hexen-1-ol 0.00a 0.00a 0.00a 0.08 ± 0.15a 0.00a
5 6.345 1-Pentanol 0.41 ± 0.67a 1.24 ± 1.01b 0.11 ± 0.17a 0.15 ± 0.17a 0.00a
6 6.741 1-Hexanol 0.18 ± 0.24b 0.33 ± 0.39b 0.00a 0.00a 0.00a
7 7.131 2-Heptanone 0.09 ± 0.13b 0.02 ± 0.05a 0.00a 0.00a 0.00a
8 7.579 2-Heptanol 0.17 ± 0.18b 0.15 ± 0.15ab 0.00a 0.10 ± 0.20ab 0.00a
9 9.989 Benzaldehyde 0.74 ± 0.87b 0.17 ± 0.16a 0.19 ± 0.04a 0.41 ± 0.17ab 0.18 ± 0.08a
10 11.051 1-Octen-3-ol 0.34 ± 0.57ab 0.96 ± 0.48c 0.76 ± 0.78bc 0.11 ± 0.24a 0.03 ± 0.05a
11 11.342 6-Methyl-5-hepten-2-one 0.00a 0.00a 0.25 ± 0.14b 0.00a 0.00a
12 11.599 2-Pentyl-furan 0.00a 0.00a 0.81 ± 0.40bc 1.37 ± 1.12c 0.18 ± 0.10ab
13 13.321 Benzyl alcohol 2.35 ± 1.43c 3.45 ± 0.53d 1.26 ± 0.87b 0.39 ± 0.36a 0.04 ± 0.06a
14 13.590 D-Limonene 1.51 ± 1.60c 1.2 ± 0.10bc 0.32 ± 0.16a 0.59 ± 0.58ab 0.02 ± 0.05a
15 14.049 Phenylacetaldehyde 0.00a 0.00a 0.00a 0.95 ± 0.51b 0.04 ± 0.07a
16 14.123 1H-Pyrrole-2-carboxaldehyde 0.00a 0.00a 0.00a 0.27 ± 0.29b 0.19 ± 0.18ab
17 14.413 Ocimene 0.57 ± 0.52b 0.37 ± 0.25ab 0.43 ± 0.2ab 0.55 ± 0.77b 0.00a
18 15.427 (E)-2-Octen-1-ol 0.00a 0.00a 0.35 ± 0.32b 0.00a 0.00a
19 15.569 Linalool oxide I 3.77 ± 1.44a 4.12 ± 0.83a 0.98 ± 0.57b 1.6 ± 0.85b 1.11 ± 0.64b
20 16.344 Linalool oxide II 4.61 ± 1.92a 4.49 ± 1.15a 2.10 ± 0.77b 3.71 ± 1.77a 2.17 ± 0.85b
21 17.097 Linalool 19.97 ± 2.73a 20.36 ± 1.54a 13.23 ± 4.59a 12.60 ± 14.78a 0.80 ± 0.69b
22 17.23 3,7-Dimethyl-1,5,7-octatriene-3-ol 0.00a 0.00a 0.00a 1.11 ± 1.42b 0.00a
23 17.513 Phenylethyl alcohol 1.86 ± 1.53a 1.15 ± 1.10a 0.41 ± 0.58a 3.85 ± 6.04a 0.36 ± 0.29a
24 19.401 1,2-dimethoxy benzene 0.00a 0.00a 0.00a 0.00a 1.38 ± 0.41b
25 20.266 Linalool oxide III 0.28 ± 0.29ab 0.24 ± 0.11ab 0.00a 0.45 ± 0.45b 0.52 ± 0.29b
26 20.544 Linalool oxide IV 4.64 ± 2.52a 1.35 ± 0.88b 0.70 ± 0.43b 1.88 ± 1.10b 1.71 ± 0.98b
27 20.703 Naphthalene 1.07 ± 1.02a 0.96 ± 0.94a 0.42 ± 0.22ab 0.09 ± 0.13ab 0.51 ± 0.90a
28 21.302 α-Terpineol 2.14 ± 3.39ab 1.65 ± 1.22ab 2.82 ± 1.59b 0.38 ± 0.37a 1.60 ± 0.81ab
29 21.439 Methyl salicylate 2.27 ± 1.84bc 1.89 ± 1.28abc 0.83 ± 1.14ab 3.45 ± 2.00c 0.41 ± 0.31a
30 21.686 Safranal 0.94 ± 0.22a 0.47 ± 0.37b 0.34 ± 0.09b 0.11 ± 0.09c 0.15 ± 0.12c
31 21.85 Dodecane 0.00a 0.00a 2.39 ± 1.46b 0.17 ± 0.32a 0.05 ± 0.08a
32 22.262 Decanal 0.00a 0.00a 0.00a 0.12 ± 0.07a 0.27 ± 0.19b
33 22.672 β-Cyclocitral 0.00a 0.00a 0.63 ± 0.23ab 0.29 ± 0.26b 0.13 ± 0.10c
34 23.135 Nerol 0.91 ± 1.00bc 1.08 ± 1.06c 0.32 ± 0.13a 0.41 ± 0.21ab 0.02 ± 0.06a
35 23.824 3,4-Dimethoxytoluene 0.00a 0.00a 0.00a 0.00a 0.84 ± 0.79b
36 24.467 Geraniol 2.82 ± 2.23a 0.54 ± 0.40a 1.68 ± 0.55a 12.63 ± 7.26b 0.47 ± 0.27a
37 25.293 2-Phenyl-2-butenal 0.00a 0.00a 0.00a 0.38 ± 0.21b 0.00a
38 25.857 2-Methyl-naphthalene 0.00a 0.00a 0.36 ± 0.11c 0.06 ± 0.07a 0.22 ± 0.09b
39 26.004 Indole 0.58 ± 0.47a 0.76 ± 0.29a 0.04 ± 0.09b 0.02 ± 0.07b 0.00b
40 26.475 Tridecane 0.00a 0.00a 6.23 ± 3.66b 0.45 ± 1.07a 0.00a
41 26.578 1-Methylnaphthalene 0.00a 0.00a 0.00a 0.06 ± 0.11a 0.18 ± 0.12b
42 27.027 1,2,3-Trimethoxybenzene 0.00a 0.00a 0.34 ± 0.27a 0.00a 14.41 ± 5.48b
43 27.695 4-Ethyl-1,4-dimethoxybenzene 0.00a 0.00a 0.00a 0.00a 2.3 ± 1.31b
44 28.624 2,6-Dimethoxyphenol 0.47 ± 0.15a 0.79 ± 0.53b 0.35 ± 0.23a 0.24 ± 0.15a 0.31 ± 0.2a
45 29.840 1,2,4-Trimethoxybenzene 0.00a 0.00a 0.00a 0.00a 5.16 ± 2.85b
46 30.093 Damascenone 0.58 ± 0.79a 0.44 ± 0.25a 0.00b 0.21 ± 0.40ab 0.00b
47 30.239 cis-3-Hexen-1-yl Hexanoate 0.00a 0.00a 0.00a 0.46 ± 0.62b 0.00a
48 30.466 Hexyl hexanoate 0.00a 0.00a 0.00a 0.16 ± 0.14b 0.00a
49 30.705 cis-Jasmone 0.81 ± 0.99a 0.57 ± 0.17a 0.48 ± 0.38a 0.63 ± 0.31a 0.39 ± 0.18a
50 30.842 Tetradecane 0.00a 0.00a 1.10 ± 0.26c 0.41 ± 0.10b 0.41 ± 0.12b
51 31.202 1,3,5-Trimethoxybenzene 0.00a 0.00a 0.00a 0.00a 3.40 ± 2.78b
52 31.374 α-Calacorene 0.00a 0.00a 0.05 ± 0.10a 0.20a ± 0.26 0.8 ± 0.4b
53 31.51 β-Caryophyllene 2.81 ± 3.22a 3.08 ± 2.12a 0.54 ± 0.56b 0.06 ± 0.13b 0.00b
54 31.934 α-Ionone 0.81 ± 0.76ab 0.84 ± 0.52ab 1.35 ± 0.48b 0.53 ± 0.41a 0.82 ± 0.31ab
55 32.294 1,2-Benzopyrone 0.00a 0.00a 0.45 ± 0.13c 0.25 ± 0.24b 0.00a
56 32.568 4-(2,6,6-trimethyl-1-cyclohexen-1-yl)butan-2-one 0.00a 0.00a 0.00a 0.03 ± 0.09a 0.14 ± 0.15b
57 32.645 1-Methoxynaphthalene 0.00a 0.00a 0.00a 0.00a 0.58 ± 0.29b
58 32.855 2-Methoxynaphthalene 0.00a 0.00a 0.00a 0.00a 0.71 ± 0.25b
59 32.979 1,2,3,4-Tetramethoxybenzene 0.00a 0.00a 0.00a 0.00a 0.93 ± 0.45b
60 33.039 Geranyl acetone 1.02 ± 1.19a 1.45 ± 0.71ab 2.27 ± 0.82b 1.12 ± 0.53a 1.51 ± 0.68ab
61 33.395 β-Ionone 1.40 ± 1.05b 2.65 ± 1.57c 0.07 ± 0.22a 0.47 ± 0.42a 0.00a
62 34.388 1-(2,6,6-trimethyl-3-cyclohexen-1-yl)-2-buten-1-one 0.00a 0.00a 0.00a 0.15 ± 0.11a 2.91 ± 2.30b
63 34.358 (E)-β-Farnesene 3.93 ± 3.61a 3.49 ± 3.15a 5.34 ± 1.53a 3.35 ± 2.57a 2.67 ± 0.89a
64 34.705 Cocal 0.00a 0.00a 0.00a 0.19 ± 0.19b 0.00a
65 34.97 Pentadecane 1.55 ± 1.78a 1.75 ± 1.11a 0.68 ± 0.21b 0.52 ± 0.12b 0.6 ± 0.16b
66 35.012 Methyl isoeugenol 0.00a 0.00a 0.00a 0.00a 0.41 ± 0.30b
67 35.219 Dibenzofuran 0.00a 0.00a 0.75 ± 0.64b 0.31 ± 0.57ab 0.53 ± 0.35ab
68 35.313 α-Farnesene 0.00a 0.00a 1.13 ± 1.02b 1.11 ± 0.67b 0.32 ± 0.40a
69 35.925 Dihydroactinidiolide 3.81 ± 0.82ab 3.71 ± 0.29ab 6.46 ± 1.12c 2.50 ± 1.29a 4.34 ± 1.48b
70 37.467 Nerolidol 2.86 ± 3.28bc 4.33 ± 1.56c 0.29 ± 0.39a 3.66 ± 1.73c 1.17 ± 0.80ab
71 37.688 cis-3-Hexen-1-yl benzoate 0.00a 0.00a 0.00a 0.66 ± 0.63b 0.00a
72 37.758 Fluorene 0.00a 0.00a 1.07 ± 0.42a 0.14 ± 0.22b 0.70 ± 0.31c
73 38.79 Cedrol 0.00a 0.00a 0.91 ± 0.41b 0.64 ± 1.05ab 1.15 ± 0.87b
74 39.884 Hexadecane 0.53 ± 0.76a 0.83 ± 0.27ab 1.24 ± 0.65bc 0.97 ± 0.23ab 1.64 ± 0.66c
75 40.845 α-Cadinol 0.00a 0.00a 1.17 ± 0.20c 0.51 ± 0.34b 1.07 ± 0.14c
76 40.897 Methyl jasmonate 0.00a 0.00a 0.00a 0.16 ± 0.36a 0.00a
77 41.051 2,2′,5,5′-Tetra methylbiphenyl 0.00a 0.00a 0.00a 0.22 ± 0.21a 0.52 ± 0.39b
78 42.584 Heptadecane 0.91 ± 0.95ab 0.36 ± 0.28a 1.19 ± 0.76ab 0.70 ± 0.46ab 1.44 ± 0.87b
79 42.811 2,6,10,14-Tetramethyl pentadecane 0.00a 0.00a 2.53 ± 1.44c 1.23 ± 0.52b 2.27 ± 1.28bc
80 44.879 Anthracene 0.00a 0.00a 1.17 ± 0.78b 0.88 ± 1.28a 1.39 ± 0.48b
81 46.099 Octadecane 0.84 ± 0.67ab 1.25 ± 0.20b 0.79 ± 0.55ab 0.36 ± 0.26a 1.26 ± 1.01b
82 46.425 2,6,10,14-Tetramethyl hexadecane 0.00a 0.00a 0.61 ± 0.56a 0.49 ± 0.41a 1.44 ± 1.02b
83 47.461 Caffeine 4.27 ± 2.15a 3.59 ± 1.27a 4.44 ± 3.62a 4.50 ± 2.55a 3.88 ± 2.29a
84 47.645 Phytone 2.44 ± 1.51a 2.38 ± 1.58a 3.68 ± 1.47a 3.18 ± 4.64a 3.86 ± 1.83a
85 50.021 Farnesyl acetone 1.49 ± 1.40a 2.15 ± 0.20a 3.04 ± 5.18a 0.18 ± 0.23a 0.49 ± 0.44a
86 50.33 Isophytol 0.45 ± 0.47a 0.31 ± 0.50a 0.16 ± 0.28a 0.17 ± 0.14a 1.25 ± 0.60b
87 51.006 Hexadecanoic acid methyl ester 3.08 ± 1.16a 3.3 ± 0.80a 0.53 ± 0.82c 1.41 ± 0.89b 0.54 ± 0.19c
88 51.657 Hexadecanoic acid 2.25 ± 2.44a 2.44 ± 2.09a 2.36 ± 1.90a 4.7 ± 5.02a 9.05 ± 4.07b
89 52.877 Eicosane 0.00a 0.00a 0.00a 0.00a 0.24 ± 0.23b
90 55.562 Methyl linoleate 0.52 ± 0.49a 0.39 ± 0.25ab 0.19 ± 0.23bc 0.32 ± 0.28abc 0.05 ± 0.11c
91 55.759 Methyl linolenate 0.58 ± 0.55a 0.92 ± 0.61a 0.64 ± 0.63a 0.49 ± 0.38a 0.41 ± 0.31a
92 56.192 Phytol 6.86 ± 2.32a 6.67 ± 2.47a 4.00 ± 3.40ab 4.23 ± 3.53ab 2.10 ± 1.86b
  1. *For each parameter, different letters within a row indicate difference between different types of tea with Duncan’s multiple range test (P < 0.05)