Effect of expression conditions on the yield of Dika Nut (Irvingia Gabonesis) oil under uniaxial compression

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dc.contributor.authorAbidakun, O. A.
dc.contributor.authorKoya, Olufemi A.
dc.contributor.authorAjayi, O. O.
dc.date.accessioned2019-07-25T18:36:56Z
dc.date.available2019-07-25T18:36:56Z
dc.date.issued2012
dc.description.abstractEfficient expression of Dika nut oil from the kernel is required for its subsequent use in producing comparatively cheap lubricant. Various factors responsible for proper oil expression include particle size, moisture content, heating temperature, heating time, pressing pressure and pressing time. Sundried Dika kernel ground to two particle sizes (fine: ≤ 1.4 mm and coarse: between 1.4 and 2.8 mm) were conditioned to moisture content of 3, 6 and 9 wt%. Considered in the study, are heating temperature ranging from 50 to 150oC in steps of 25 degrees Celsius and heating time of 5 to 25 minutes in steps of 5 minutes. Pressing pressure of 5 to 25 MPa in steps of 5 MPa and pressing time of 2 minutes interval were also considered. The maximum oil yield was then correlated with the processing conditions. Test results showed that coarse particle gave higher oil yield. Maximum oil yield of 72.2% of the available oil was obtained at 6% moisture content, heating temperature of 100oC and heating time of 10 minutes. Regression analyses of the oil yield with heating temperature, heating time, and pressing gave r2 values of 0.9678, 0.999 and 0.9128. The processing conditions therefore has significantly influence the quantity of oil obtained from Dika kernel.en_US
dc.identifier.citationAbidakun, O. A., Koya, O., & Ajayi, O. O. (2012). Effect of expression conditions on the yield of Dika Nut (Irvingia Gabonesis) oil under uniaxial compression.en_US
dc.identifier.urihttp://repository.elizadeuniversity.edu.ng/handle/20.500.12398/411
dc.language.isoenen_US
dc.publisherICCEMen_US
dc.subjectDika nuten_US
dc.subjectOil expressionen_US
dc.subjectOil yielden_US
dc.subjectRegression analysisen_US
dc.subjectHeating temperatureen_US
dc.titleEffect of expression conditions on the yield of Dika Nut (Irvingia Gabonesis) oil under uniaxial compressionen_US
dc.typeArticleen_US
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