S.No Compound KI cal M+ m/z
1 n-Hexanal 772 100 41,55,42,69,57
2 E- 2- hexenal   825 98 41,42,55,69,57
3 Z-3- Hexenol 842 100 41,67,82,55,69
4 2-hexenol 848 100 57,82,41,43,44
5 n-hexanol 853 102 56,43,41,55,42
6 n-heptanal 875 114 43,41,70,44,55
7 Cumene 911 120 105,120,77,51,79
8 Benzaldehyde 939 106 77,106,105,51,50
9 (E,Z)-2,4-Heptadienal 975 110 81,41,53,67,110
10 (E,E)-2,4-Heptadienal 984 110 81,41,53,67,110
11 Nonanal 1006 142 41,57,43,55,56
12 Phenyl acetaldehyde 1017 120 91,65,92,120,51
13 Benzyl alcohol 1022 108 79,108,77,107,1
14 cis-Linalooloxide 1058 170 59,43,55,94,68
15 trans- Linalooloxide 1073 170 59,43,55,94,68
16 Linalool 1085 154 71,41,93,55,43
17 Phenyl ethyl alcohol 1097 122 91,92,65,122,51
18 α-terpineol 1173 154 59,43,93,81,121
19 Methyl salicylate 1180 152 120,92,152,121,65
20 cis-Geraniol 1232 154 41,69,93,67,53
21 Indole 1291 117 117,89,90,63,118
22 Geranyl acetate 1358 196 41,43,69,68,67
23 β-Ionone 1455 192 177,43,41,44,178
24 Dihydroactinidiolide 1471 180 111,43,109,137,67
25 Nerolidol 1518 222 41,69,43,93,71
26 Phytol 2010 296 71,43,57,69,123
Table 2: Identification of major volatile flavour compounds from black tea.
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