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Process optimization of supercritical CO2 extraction of Roselle using response surface methodology

Wong, Lee Peng and Mohd. Setapar, Siti Hamidah and Mohd. Nasir, Hasmida (2020) Process optimization of supercritical CO2 extraction of Roselle using response surface methodology. Malaysian Journal of Fundamental and Applied Sciences, 16 (1). pp. 30-33. ISSN 2289-5891

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Official URL: https://mjfas.utm.my/index.php/mjfas/article/view/...

Abstract

Hibiscus sabdariffa, commonly known as Roselle, is a native plant in Malaysia that is rich with bioactive compounds. In the present study, supercritical carbon dioxide (SC-CO2) extraction of Roselle was investigated. The optimum particle size (212μm, 300μm, 425μm, 600μm, and 710μm) to obtain highest yield was pre-determined. The effects of two operating parameters, pressure (20MPa, 25MPa, and 30MPa) and temperature (40 ºC, 60 ºC, and 80 ºC) on extraction yield were studied using response surface methodology (RSM). From the experimental data, the optimum conditions were achieved using particle size 300μm, pressure 27.5MPa, and temperature 50.8 ºC. Using the optimized parameters, the highest extraction yield was predicted to be 163.26 mg-extract/g-dried sample. The validation experimental results were consistent with the predicted values.

Item Type:Article
Uncontrolled Keywords:Roselle (Hibiscus sabdariffa), supercritical CO2 extraction, response surface methodology, fatty acid composition, optimization
Subjects:T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:85565
Deposited By: Fazli Masari
Deposited On:30 Jun 2020 16:50
Last Modified:30 Jun 2020 16:50

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