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Optimization of process variables using response surface methodology for tocopherol extraction from roselle seed oil by supercritical carbon dioxide

Hibiscus sabdariffa L. (Roselle) seeds are rich in proteins, carbohydrates and unsaturated fatty acids, and are a good source of minerals and antioxidants. Supercritical carbon dioxide (SC-CO2) extraction was applied for extraction of oil from Roselle seed at temperatures of 40 °C to 80 °C and press...

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Main Authors: Peng, W. L., Mohd. Nasir, H., Setapar, S. H. M., Ahmad, A., Lokhat, D.
Format: Article
Language:English
Published: Elsevier B. V. 2020
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/86267/1/SitiHamidahSetapar2020_OptimizationofProcessVariablesusingResponseSurfaceMethodology.pdf
http://eprints.utm.my/id/eprint/86267/
https://dx.doi.org/10.1016/j.indcrop.2019.111886
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spelling my.utm.862672020-10-13T01:41:26Z http://eprints.utm.my/id/eprint/86267/ Optimization of process variables using response surface methodology for tocopherol extraction from roselle seed oil by supercritical carbon dioxide Peng, W. L. Mohd. Nasir, H. Setapar, S. H. M. Ahmad, A. Lokhat, D. T Technology (General) Hibiscus sabdariffa L. (Roselle) seeds are rich in proteins, carbohydrates and unsaturated fatty acids, and are a good source of minerals and antioxidants. Supercritical carbon dioxide (SC-CO2) extraction was applied for extraction of oil from Roselle seed at temperatures of 40 °C to 80 °C and pressures of 20 MPa to 30 MPa. The effects of temperature and pressure on the extraction yield and solubility of oil were determined. Process optimization was carried out using response surface methodology (RSM). A particle size of 300 μm, SC-CO2 flow rate of 5 mL/min and extraction time of 180 min were held constant throughout this study. The overall oil yield increased as pressure and temperature was increased, while a reverse effect was observed at higher temperatures. The optimum extraction conditions for Roselle seed oil corresponded to a pressure of 30 MPa and temperature of 40 °C. According to the analysis of variance (ANOVA), the coefficient of determination R2 for oil yield and gamma tocopherol concentration were 0.9723 and 0.9754, respectively, indicating a good correlation and agreement between the experimental and predicted values. Elsevier B. V. 2020-01 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/86267/1/SitiHamidahSetapar2020_OptimizationofProcessVariablesusingResponseSurfaceMethodology.pdf Peng, W. L. and Mohd. Nasir, H. and Setapar, S. H. M. and Ahmad, A. and Lokhat, D. (2020) Optimization of process variables using response surface methodology for tocopherol extraction from roselle seed oil by supercritical carbon dioxide. Industrial Crops and Products, 143 . ISSN 0926-6690 https://dx.doi.org/10.1016/j.indcrop.2019.111886 DOI:10.1016/j.indcrop.2019.111886
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic T Technology (General)
spellingShingle T Technology (General)
Peng, W. L.
Mohd. Nasir, H.
Setapar, S. H. M.
Ahmad, A.
Lokhat, D.
Optimization of process variables using response surface methodology for tocopherol extraction from roselle seed oil by supercritical carbon dioxide
description Hibiscus sabdariffa L. (Roselle) seeds are rich in proteins, carbohydrates and unsaturated fatty acids, and are a good source of minerals and antioxidants. Supercritical carbon dioxide (SC-CO2) extraction was applied for extraction of oil from Roselle seed at temperatures of 40 °C to 80 °C and pressures of 20 MPa to 30 MPa. The effects of temperature and pressure on the extraction yield and solubility of oil were determined. Process optimization was carried out using response surface methodology (RSM). A particle size of 300 μm, SC-CO2 flow rate of 5 mL/min and extraction time of 180 min were held constant throughout this study. The overall oil yield increased as pressure and temperature was increased, while a reverse effect was observed at higher temperatures. The optimum extraction conditions for Roselle seed oil corresponded to a pressure of 30 MPa and temperature of 40 °C. According to the analysis of variance (ANOVA), the coefficient of determination R2 for oil yield and gamma tocopherol concentration were 0.9723 and 0.9754, respectively, indicating a good correlation and agreement between the experimental and predicted values.
format Article
author Peng, W. L.
Mohd. Nasir, H.
Setapar, S. H. M.
Ahmad, A.
Lokhat, D.
author_facet Peng, W. L.
Mohd. Nasir, H.
Setapar, S. H. M.
Ahmad, A.
Lokhat, D.
author_sort Peng, W. L.
title Optimization of process variables using response surface methodology for tocopherol extraction from roselle seed oil by supercritical carbon dioxide
title_short Optimization of process variables using response surface methodology for tocopherol extraction from roselle seed oil by supercritical carbon dioxide
title_full Optimization of process variables using response surface methodology for tocopherol extraction from roselle seed oil by supercritical carbon dioxide
title_fullStr Optimization of process variables using response surface methodology for tocopherol extraction from roselle seed oil by supercritical carbon dioxide
title_full_unstemmed Optimization of process variables using response surface methodology for tocopherol extraction from roselle seed oil by supercritical carbon dioxide
title_sort optimization of process variables using response surface methodology for tocopherol extraction from roselle seed oil by supercritical carbon dioxide
publisher Elsevier B. V.
publishDate 2020
url http://eprints.utm.my/id/eprint/86267/1/SitiHamidahSetapar2020_OptimizationofProcessVariablesusingResponseSurfaceMethodology.pdf
http://eprints.utm.my/id/eprint/86267/
https://dx.doi.org/10.1016/j.indcrop.2019.111886
_version_ 1681489478427869184
score 13.211869

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