Volatile Constituents of Leaf and Seed Essential Oil of <i>Coriandrum sativum</i> L

Abstract

Abstract The leaf and seed essential oils of Coriandrum sativum L. (family: Apiaceae) grown in tarai region of Uttarakhand, India were analyzed and compared by capillary GC and GC-MS. The analysis led to the identification of 88 constituents forming 93.55 % to 98.90 % of the total oil compositions. The major components in seed essential oil were monoterpenoids (90.18 %) represented by 74.01 % of oxygenated and 16.17 % of monoterpene hydrocarbons. Linalool (55.42 %), geranial (6.33 %), myrcene (5.53 %), α-humulene (5.29 %) and 1,8-cineole (3.30 %) were the major constituents of seed oil. On the contrary, aliphatic compounds (90.20 %), mainly comprised of C8-C16 aldehydes and alcohols, predominate in leaf essential oil of C. sativum. The major constituents identified were (E)-2-decenal (18.02 %), decanal (14.36 %), dec-9-en-1-ol (11.66 %), (E)-2-dodecenal (8.72 %), n-tetradecanol (6.09 %), dodecanal (5.81%) and decanol (5.77 %). Comparison of the oil composition of seed and leaf oil showed sharp qualitative and quantitative variation in their essential oil constituents. Key words: Coriandrum sativumApiaceaeessential oil compositionlinalool(E)-2-decenal(E)-2-dodecenal