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Essential oil constituents of Aframomum melegueta (Roscoe) K. Schum. seeds (alligator pepper) from Nigeria
Author(s) -
Ajaiyeoba E. O.,
Ekundayo O.
Publication year - 1999
Publication title -
flavour and fragrance journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 70
eISSN - 1099-1026
pISSN - 0882-5734
DOI - 10.1002/(sici)1099-1026(199903/04)14:2<109::aid-ffj775>3.0.co;2-m
Subject(s) - sesquiterpene , chemistry , terpenoid , essential oil , gas chromatography , humulene , pepper , gas chromatography–mass spectrometry , alligator , caryophyllene , botany , mass spectrometry , chromatography , organic chemistry , food science , stereochemistry , biology , paleontology
The composition of the essential oil isolated from the seeds of Aframomum melegueta (Roscoe) K. Schum. by hydrodistillation was characterized by means of gas chromatography (GC) and gas chromatography–mass spectrometry (GC–MS). A total of 27 compounds constituting 98.6% of the volatile oil were identified. Two sesquiterpene hydrocarbons: humulene and caryophyllene made up 82.6% of the volatile oil, whilst their oxides amounted to a further 9.0%. Seventeen other mono‐ and sesquiterpenes accounted for only 1% of the volatile oil. Five non‐terpenoids were detected in trace amounts only (<0.2%). Of the 27 constituents identified, 12 are reported as components of A. melegueta for the first time. Copyright © 1999 John Wiley & Sons, Ltd.