Physicochemical properties of Kalahari melon seed oil following extractions using solvent and aqueous enzymatic methods.
The physico-chemical properties of oil from Kalahari melon seed were determined following extraction with petroleum ether and aqueous-enzymatic methods. Two different enzymes Flavourzyme 1000 L and Neutrase 0.8 L were separately used during aqueous-enzymatic method. The free fatty acid, peroxide, io...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Institute of Food Science and Technology
2009
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| Online Access: | http://psasir.upm.edu.my/16213/ http://psasir.upm.edu.my/16213/ http://psasir.upm.edu.my/16213/1/Physicochemical%20properties%20of%20Kalahari%20melon%20seed%20oil%20following%20extractions%20using%20solvent%20and%20aqueous%20enzymatic%20methods.pdf |
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| Summary: | The physico-chemical properties of oil from Kalahari melon seed were determined following extraction with petroleum ether and aqueous-enzymatic methods. Two different enzymes Flavourzyme 1000 L and Neutrase 0.8 L were separately used during aqueous-enzymatic method. The free fatty acid, peroxide, iodine and the saponification values of the oils extracted using the methods were found to be significantly (P < 0.05) different. The melting point of the oils extracted was in the range of )18.7 C to )17.5 C and no significant(P > 0.05) difference between the oil obtained from solvent and aqueous-enzymatic extractions was
observed. Enzyme-extracted oil tended to be light-coloured and more yellow in colour compared with solvent-extracted oil. The predominant fatty acids in the extracted oils were linoleic acid (62.2–63.1%), with some oleic (16.8–17.1%), palmitic (11.4–12.4%), stearic (7.5–8.1%), linolenic (0.7–1.2%) and eicosenoic(0.3%). Phenolic acids in enzyme-extracted oils were comparable to the solvent-extracted oil. The oils extracted with these two methods were differed in the composition of their phytosterol and tocopherol contents, but no significant (P > 0.05) difference between the two enzyme-extracted oils was observed. |
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