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JSIR Vol.68 [2009] >
JSIR Vol.68(04) [April 2009] >
| Title: | Optimization of solvent requirement for refining of karanja (Pongamia glabra) oil by liquid- liquid extraction |
| Authors: | De, B K
Patel, Jignesh Dahyabhai |
| Keywords: | Detoxification
Karanja oil
Liquid- liquid extraction
Refining |
| Issue Date: | 2009 |
| Publisher: | CSIR |
| Abstract: | 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. |
| Page(s): | 319-324 |
| ISSN: | 0022-4456 |
| Source: | JSIR Vol.68(04) [April 2009]
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