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Extraction of kewda ( Pandanus fascicularis Lam.) flowers with hexane: composition of concrete, absolute and wax
Author(s) -
Rout P. K,
Misra Reeta,
Sahoo S.,
Sree A.,
Rao Y. R.
Publication year - 2005
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/ffj.1466
Subject(s) - chemistry , wax , absolute (philosophy) , chromatography , hexane , sabinene , aroma , methanol , residue (chemistry) , fatty alcohol , ether , composition (language) , petroleum ether , essential oil , organic chemistry , extraction (chemistry) , food science , limonene , philosophy , linguistics , epistemology
Extraction of male spadices of kewda ( Pandanus fascicularis Lam.) flowers with hexane furnished a waxy extract, the so‐called ‘concrete’. Treatment of the extract with methanol gave a reddish oily residue (‘absolute’) with a smell strongly reminiscent of the aroma of kewda flowers. Concrete, absolute and separated waxes were analysed by GC and GC–MS. The methanol‐soluble portion contains considerable quantities of fatty acids and their methyl esters, which function as a fixative for the volatile fragrant components of the extracts. While the recoveries of the oxygenated compounds terpinen‐4‐ol and α ‐terpineol are less than the amounts usually obtained through hydrodistillation, the major component, 2‐phenyl ethyl methyl ether, and non‐polar compounds, α ‐thujene, sabinene and its hydrate, have been obtained in larger amounts. Copyright © 2005 John Wiley & Sons, Ltd.