Optimization of solvent requirement for refining of karanja (Pongamia glabra) oil by liquid- liquid extraction
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Title |
Optimization of solvent requirement for refining of karanja (Pongamia glabra) oil by liquid- liquid extraction
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Creator |
De, B K
Patel, Jignesh Dahyabhai |
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Subject |
Detoxification
Karanja oil Liquid- liquid extraction Refining |
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Description |
319-324
An improved detoxification method using liquid-liquid extraction of karanja (Pongamia glabra) oil is developed. Only 2 stage extractions [using oil and HCl (1:0.35 w/v)] followed by 3 extractions [using oil and alkaline MeOH (1:2 w/ v)] can completely detoxify oil. After HCl extraction, if alkaline isopropanol (IPA), dimethylformamide (DMF) and acetonitrile are used for extraction, total HCl and corresponding solvent requirement would be (w/v) 1:1.0, 1:6.0; 1:0.2, 1:1.2; and 1:0.4, 1:1.6 respectively. When only acetonitrile is used, 5 stage extraction using oil: acetonitrile (1:0.5, w/v) per batch makes total acetonitrile requirement 2.5 times (v/w) of oil for complete detoxification. Physicochemical characteristics of refined oils are acceptable. Overall oil yield (75-80% w/w) is obtained when alkaline MeOH, IPA and DMF are used, but higher yield (85-88%, w/w) is obtained when acetonitrile is used. |
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Date |
2009-03-30T06:09:51Z
2009-03-30T06:09:51Z 2009 |
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Type |
Article
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Identifier |
0022-4456
http://hdl.handle.net/123456789/3480 |
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Language |
en_US
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Publisher |
CSIR
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Source |
JSIR Vol.68(04) [April 2009]
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