Sl. No. Compound Para julie Pan diar Darjeel Medium Darjeel Premium Assam AFTL Assam Magor Nilgiri HG Aibh eel Chin chula Assam OP Anamalai Nilgiris Waynad 1 n-hexanal 1259 1707 A 507 A A 1333 1066 1399 T 35 A 2 Leaf aldehyde (E2–hexenal) 2108 2457 1197 1467 1435 1026 17500 533 265 434 889 1581 3 Leaf alcohol (Z-3-hexenol) 238 344 1094 667 200 90 1893 81 146 94 18 51 4 Transicis-2-hexenol 62 T 175 180 96 A 5190 21 253 A A A 5 n-hexenol A 165 491 A A A 1440 T A A 15 79 6 n-heptanal 96 125 111 153 300 276 2357 25 280 A 55 A 7 Benzaldehyde 117 T 20 300 127 82 440 131 122 104 35 62 8 (E,Z)-2,4-Heptadienal A A A A A A A A A A 5 8 9 (E,E)-2,4-Heptadienal 151 122 149 333 119 A 428 72 A 7 9 14 10 Nonanal 117 T 308 313 211 194 452 45 A A A A 11 Phenyl acetaldehyde 1352 793 1440 1780 1327 750 2869 908 908 382 355 350 12 Benzyl alcohol 605 518 684 167 A A 2107 221 299 37 31 T 13 Cis-linalool oxide 654 558 2624 2827 1108 534 9917 468 582 31 28 22 14 Trans-linalool oxide     5141 5393           79 89 89 15 Linalool 1513 1357 3850 1873 1138 655 A 762 875 19 256 438 16 Phynyl ethyl alcohol   A 1513   A A 7429 A A 365 256 408 17 Alfa-terpineol A A A A A A 3702 A A 36 26 36 18 Methyl salicylate 413 457 1739 2273 373 202 1238 216 329 36 25 41 19 Cis-Geraniol 639 698 4158 3120 A A 1667 131 A 18 74 149 20 Geranyl acetate 346 113 145 A 177 A A 21 A 19 8 7 21 β-lonone 417 271 222 380 181 276 1524 138 134 33 52 44 22 Nerolidol A A A A A A A A A 27 19 29 23 Phytol 799 5628 3205 3407 7285 11858 A 3101 8598 A 443 888 24 Indole A A A A A A A A A 23 10 11 25 Dihydroactinidiolide A A A A A A A A A 68 22 43   Total 10087 9685 25061 21733 6792 4085 61486 4839 5592 1805 2312 3462   Terpene Index 0.77 0.73 0.73 0.76 1.0 1.0 0.85 0.90 1.0 0.88 0.83 0.79   Yamanishi Botheju ratio 0.72 0.55 3.22 1.28 0.79 0.64 - 1.43 3.30 0.04 0.29 0.27   Mahanta ratio 0.86 0.61 4.55 3.47 1.05 0.88 0.54 0.77 0.65 0.52 0.54 0.48 * Phytol is not included in the total volatiles as well as in mahanta ratio (refer results and discussion for details) @ Values expressed are mean of three experiments, Where A = absent, T= trace

Table 9: Season 4 (January - March)- Black tea samples-volatile flavour compounds (VFC) μ g / 100 g@

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