Use of supercritical co2 and r134a as solvent for extraction of beta-carotene and alpha-tocopherols from crude palm oil
Supercritical fluid extraction of α-tocopherol and β-carotenoids from crude palm oil offers an excellent method over other existing conventional methods. Supercritical fluid extraction was developed in the early and mid-1980s to reduce the use of harmful organic solvent in the laboratory. The presen...
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| Format: | Article |
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Chemical Publishing Co.
2014
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| _version_ | 1796861413821513728 |
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| author | Mohd. Setapar, Siti Hamidah Khatoon, Asma Ahmad, Akil M. Che Yunus, Mohd. Azizi Ahmad Zaini, Muhammad Abbas |
| author_facet | Mohd. Setapar, Siti Hamidah Khatoon, Asma Ahmad, Akil M. Che Yunus, Mohd. Azizi Ahmad Zaini, Muhammad Abbas |
| author_sort | Mohd. Setapar, Siti Hamidah |
| collection | ePrints |
| description | Supercritical fluid extraction of α-tocopherol and β-carotenoids from crude palm oil offers an excellent method over other existing conventional methods. Supercritical fluid extraction was developed in the early and mid-1980s to reduce the use of harmful organic solvent in the laboratory. The present paper reviews the applications of supercritical fluid extraction technology in extraction of palm oil using CO2and R 134a fluids. Carbon dioxide is non- toxic, having low critical pressure (74 bar) and temperature (32°C) which minimize the thermal degradation of product but it has a limited dissolving power for solutes of high polarity and high molecular weight in the supercritical state and it also requires higher pressure of upto 500 bar and this high pressure operation requires high operation cost and high capital cost. R134a is an alternative low pressure, non-reactive, non-flammable, non-toxic, non-ozone depleting and has comparable solvent properties as that of CO2. R-134a needs only its temperature or pressure to be controlled in order to control the conditions of extraction or product isolation. This allows simple control of the process. |
| first_indexed | 2024-03-05T19:55:56Z |
| format | Article |
| id | utm.eprints-63181 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:55:56Z |
| publishDate | 2014 |
| publisher | Chemical Publishing Co. |
| record_format | dspace |
| spelling | utm.eprints-631812017-06-15T02:26:07Z http://eprints.utm.my/63181/ Use of supercritical co2 and r134a as solvent for extraction of beta-carotene and alpha-tocopherols from crude palm oil Mohd. Setapar, Siti Hamidah Khatoon, Asma Ahmad, Akil M. Che Yunus, Mohd. Azizi Ahmad Zaini, Muhammad Abbas QP Physiology Supercritical fluid extraction of α-tocopherol and β-carotenoids from crude palm oil offers an excellent method over other existing conventional methods. Supercritical fluid extraction was developed in the early and mid-1980s to reduce the use of harmful organic solvent in the laboratory. The present paper reviews the applications of supercritical fluid extraction technology in extraction of palm oil using CO2and R 134a fluids. Carbon dioxide is non- toxic, having low critical pressure (74 bar) and temperature (32°C) which minimize the thermal degradation of product but it has a limited dissolving power for solutes of high polarity and high molecular weight in the supercritical state and it also requires higher pressure of upto 500 bar and this high pressure operation requires high operation cost and high capital cost. R134a is an alternative low pressure, non-reactive, non-flammable, non-toxic, non-ozone depleting and has comparable solvent properties as that of CO2. R-134a needs only its temperature or pressure to be controlled in order to control the conditions of extraction or product isolation. This allows simple control of the process. Chemical Publishing Co. 2014 Article PeerReviewed Mohd. Setapar, Siti Hamidah and Khatoon, Asma and Ahmad, Akil M. and Che Yunus, Mohd. Azizi and Ahmad Zaini, Muhammad Abbas (2014) Use of supercritical co2 and r134a as solvent for extraction of beta-carotene and alpha-tocopherols from crude palm oil. Asian Journal of Chemistry, 26 (18). pp. 5911-5916. ISSN 0970-7077 http://dx.doi.org/10.14233/ajchem.2014.16650 DOI :10.14233/ajchem.2014.16650 |
| spellingShingle | QP Physiology Mohd. Setapar, Siti Hamidah Khatoon, Asma Ahmad, Akil M. Che Yunus, Mohd. Azizi Ahmad Zaini, Muhammad Abbas Use of supercritical co2 and r134a as solvent for extraction of beta-carotene and alpha-tocopherols from crude palm oil |
| title | Use of supercritical co2 and r134a as solvent for extraction of beta-carotene and alpha-tocopherols from crude palm oil |
| title_full | Use of supercritical co2 and r134a as solvent for extraction of beta-carotene and alpha-tocopherols from crude palm oil |
| title_fullStr | Use of supercritical co2 and r134a as solvent for extraction of beta-carotene and alpha-tocopherols from crude palm oil |
| title_full_unstemmed | Use of supercritical co2 and r134a as solvent for extraction of beta-carotene and alpha-tocopherols from crude palm oil |
| title_short | Use of supercritical co2 and r134a as solvent for extraction of beta-carotene and alpha-tocopherols from crude palm oil |
| title_sort | use of supercritical co2 and r134a as solvent for extraction of beta carotene and alpha tocopherols from crude palm oil |
| topic | QP Physiology |
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