Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 39, Issue 4, Pages 437-443Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2005.02.007
Keywords
siriguela; SPME; volatile compounds; Spondias purpurea; flavors
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In order to investigate the volatile composition of the siriguela fruit (Spondias purpurea L.), the pulp of the fresh fruit was submitted to solid phase microextracton (SPME) using different fibers, divinylbenzene-carboxen-polydimethylsiloxane (DVB/CAR/PDMS), carbowax-divinylbenzene (CW/DVB), carboxen-polydimethylsiloxane (CAR/PDMS) and polydimethylsiloxane (PDMS) fibers. DVB/CAR/PDMS showed to be the more efficient qualitative and semi-quantitatively fiber in trapping these compounds. It was made possible to identify ketones, alcohols, aldehydes, esters and terpenic hydrocarbons in the headspace. The major compounds identified were hexanal, trans-2-hexenal, 3-hexen-1-ol, 2-hexen-1-ol, ethyl acetate and hexyl acetate. To have a clear picture of the retention indices of these compounds a new protocol, in which the standard hydrocarbon mixture is submitted to SPME, was developed and successfully used. (C) 2005 Swiss Society of Food Science and Technology. Published by Elsevier Ltd. All rights reserved.
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