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Optimization of headspace sampling using solid–phase microextraction (SPME) for volatile components in starfruit juice

Abdullah, Abdul Ghani Liew (2011) Optimization of headspace sampling using solid–phase microextraction (SPME) for volatile components in starfruit juice. Journal of Industrial Research & Technology, 1 (1). pp. 32-39. ISSN 2229-9467

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Official URL: http://www.hgpub.com/ojs2/index.php/jirt/article/v...

Abstract

Volatiles are important flavor compounds of fruit juices and beverages. In this study, a headspace Solid-phase microextraction (SPME) gas chromatography-mass spectrometry (GC-MS) was used to analyze volatile components in starfruit juices. Several experimental parameters (e.g. adsorption temperature, adsorption time and sample volume) were optimized to improve sampling efficiency in two aspects; maximum adsorption and selective adsorption of volatile components onto SPME fiber. The following conditions was found to be optimal for selectivity and sensitivity: adsorption temperature of 50°C for 30 min with a 65 μm divinylbenzene/polydimethylsiloxane (DVB/PDMS) coated fiber with and sample volume of 15 g in a 30 ml vial. The proposed technique could be applied for the analysis volatile compounds that contribute to starfruit juices flavor in different cultivars and also their ripening stages.

Item Type:Article
Keyword:Optimization; SPME; Starfruit; Volatile compounds; GC-MS
Faculty or Institute:Faculty of Engineering
Publisher:HATAM Publisher
ID Code:22973
Deposited By: Nabilah Mustapa
Deposited On:09 Dec 2015 16:41
Last Modified:09 Dec 2015 16:41

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