Effects of Extraction Process Parameters on the Quality Characteristics of Parinari Polyandra B. Seed Oil

Authors

  • T. E. Odetoye Department of Chemical Engineering, University of Ilorin, Ilorin, Kwara State, Nigeria.
  • T. J. Afolabi Department of Chemical Engineering, Ladoke Akintola University of Technology, Ogbomoso, Nigeria.
  • K. R. Onifade Department of Chemical Engineering, Federal University of Technology, Minna, Nigeria.

Keywords:

Parinari seed oil,, quality, acid value, iodine value, extraction, response surface methodology

Abstract

Extraction process parameters can influence the quality of oil obtained from seeds during extraction process. The effect of extraction process parameters on the quality of parinari seed oil, a potential renewable industrial raw material, is yet to be reported. This research was aimed at investigating the effects of some extraction process parameters on some quality characteristics of parinari oil (acid, iodine and saponification values). This work reports for the first time the effects of extraction process parameters on the properties of parinari seed oil. The parinari seeds were harvested and oil was obtained from the seeds by solvent extraction method based on the experimental design. The experimental design followed central composite design (CCD). Effects of extraction parameters on the quality characteristics were investigated. The study parameters were time (2 - 6 h), temperature (60-70 oC), solid- solvent ratio (0.03 - 0.08 g/cm3) and solvent types (n-hexane and petroleum ether). The responses were acid, saponification and iodine values. The results indicated that time and temperature significantly influenced the physicochemical properties of parinari oil. Response Surface Methodology (RSM) based analysis of variance indicated that the models obtained were all significant (p < 0.0001). The set of conditions for the optimal quality was obtained at temperature (60 oC), time (2 h), solid to solvent ratio (0.07 g/cm3) and n-hexane solvent with 89.7% desirability. The effects of the extraction process parameters on parinari oil quality were obtained. The information provided from this work will be useful for potential scaling up of the parinari oil extraction process.

Downloads

Published

2016-12-01

Issue

Vol. 13 No. 2 (2016)

Section

Articles

License

In accordance with the Copyright Act of 1976, which became effective January 1, 1978, the following statement signed by each author must accompany the manuscript submitted: "I, the undersigned author, transfer all copyright ownership of the manuscript referenced above to the Nigerian Journal of Technological Development, in the event the work is published. I warrant that the article is original, does not infringe upon any copyright or other proprietary right of any third party, is not under consideration by another journal, and has not been published previously. I have reviewed and approve the submitted version of the manuscript and agree to its publication in the Nigerian Journal of Technological Development." A copyright transfer form should be downloaded from the NJTD Website ( http://njtd.com.ng/index.php/njtd). Author(s) will be consulted, whenever possible, regarding republication of material. All authors must have access to the data presented and the authors and sponsor (if applicable) must agree to share original data with the editor if requested.