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Chemical composition of Pourouma guianensis Aublet essential oils
Author(s) -
Lopes D.,
Koketsu M.,
Carauta J. P. P.,
de Oliveira R. R.,
Kaplan M. A. C.
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(199907/08)14:4<233::aid-ffj813>3.0.co;2-l
Subject(s) - chemistry , nerol , geraniol , methyl salicylate , essential oil , monoterpene , organic chemistry , moraceae , botany , benzyl benzoate , chemical composition , stereochemistry , food science , biology
The essential oils from leaves, stem barks and pistillate flowers of Pourouma guianensis Aublet (Moraceae) were isolated by hydrodistillation and the volatile constituents were determined by HRGC and HRGC–MS. Methyl salicylate was the major compound identified in all oils studied and was present in yields of 20.8% (leaves), 31.2% (stem bark) and 62.2% (pistillate flowers). Altogether, 50 constituents have been identified in the essential oil obtained from leaves, representing 76.6% of the total oil. Aliphatic C 6 alcohols and esters were, in number and in quantity, the principal constituents (29.5%). Oxygenated monoterpenes were found to be an important group of compounds and the most representative compound was linalol (2.4%). Thirty‐eight components were identified in the essential oil from stem barks, representing 79.3% of the total oil. Among the monoterpenes identified, linalol was the principal compound (0.8%). The total content of fatty acids amounted to 40.0%. Analysis of the essential oil from pistillate flowers allowed the identification of 36 compounds, representing 88.5% of the oil. Ten oxygenated monoterpenes were identified, whereas linalol and its furan derivatives (9.7%), nerol (0.4%) and geraniol (1.3%) were the most abundant. Five aromatic derivatives were identified in the pistillate flower essential oil: methyl salicylate (62.2%), ethyl salicylate (0.1%), benzyl salicylate (0.2%), benzyl benzoate (0.3%) and benzaldehyde (0.1%). Copyright © 1999 John Wiley & Sons, Ltd.