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Extraction of tocopherol-enriched oils from Kalahari melon and roselle seeds by supercritical fluid extraction (SFE-CO2).


Citation

Kar, Lin Nyam and Tan, Chin Ping and Karim, Roselina and Lai, Oi Ming and Long, Kamariah and Che Man, Yaakob (2010) Extraction of tocopherol-enriched oils from Kalahari melon and roselle seeds by supercritical fluid extraction (SFE-CO2). Food Chemistry, 119 (3). pp. 1278-1283. ISSN 0308-8146

Abstract / Synopsis

Tocopherol-enriched oil was extracted by supercritical fluid extraction of carbon dioxide (SFE-CO2) from Kalahari melon and roselle seeds. The SFE-CO2 process was optimised using response surface methodology(RSM) with central composite design (CCD). Three SFE-CO2 parameters namely extracting pressure,extracting temperature, and flow rate of carbon dioxide were examined. The optimal SFE-CO2 conditions were determined and the quadratic response surfaces were drawn from the mathematical models. The optimal SFE-CO2 conditions for the extraction tocopherol-enriched oil from Kalahari melon seeds were: extracting pressure 290 bar, extracting temperature 58C, and flow rate of carbon dioxide 20 ml/min. The optimum conditions for roselle seeds were extracting pressure 200 bar, extracting temperature 80C, and flow rate of carbon dioxide 20 ml/min. These optimum conditions yielded tocopherol concentration of 274.74 and 89.75 mg/100 g oil from Kalahari seed and roselle seed, respectively. No significant(P > 0.05) differences were obtained between the experimental and predicted values.


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Additional Metadata

Item Type: Article
Subject: Supercritical fluid extraction
Subject: Tocopherol
Subject: Roselle
Divisions: Faculty of Biotechnology and Biomolecular Sciences
DOI Number: https://doi.org/10.1016/j.foodchem.2009.08.007
Publisher: Elsevier Ltd
Keywords: Supercritical fluid extraction (SFE-CO2); Kalahari melon seed oil; Roselle seed oil; Response surface methodology (RSM); Tocopherol concentration.
Depositing User: Nida Hidayati Ghazali
Date Deposited: 02 Aug 2012 04:49
Last Modified: 22 Sep 2015 07:25
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.foodchem.2009.08.007
URI: http://psasir.upm.edu.my/id/eprint/14684
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