Chemical examination of essential oil from stem, roots and fruit peels of Nigerian Citrus jambhiri

Abstract

The chemical profiles of the stem, root and fruit peel essential oils of Citrus jambhiri were investigated. Pulverized plant samples (500 g) each was hydrodistilled using all-glass Clevenger-type apparatus to obtain the essential oils. Two-dimensional GC-TOFMS was used for compositional profiling of the extracted oils. Chemical profiling of the stem oil of C. jambhiri revealed the presence of 64 components (83.11 %), the root oil of C. jambhiri showed 55 components (74.21 %) and the fruit peel oil of C. jambhiri revealed 25 components (83.56 %). The major components of the stem oil of C. jambhiri is 3,4-dimethyl-1,5-cyclooctadiene(13.43 %); geijerene (14.38 %) and γ-terpinene (8.07 %) were observed as main constituents in C. jambhiri root oil whereas cis-linalool oxide (19.85 %), trans-linalool oxide (furanoid) (14.86 %), terpinen-4-ol (7.37 %) and limonene (4.64 %) were the major components of C. jambhiri fruit peel oil. Even though the samples were obtained from the same plant, the compositional profile of the essential oils from various plant parts differs.