OPTIMIZATION AND PHYSICOCHEMICAL CHARACTERIZATION OF OIL EXTRACTED FROM LOOFAH (Luffa cylindrica) SEED USING RESPONSE SURFACE METHODOLOGY

Year 2019, Volume: 2 Issue: 2, 57 - 68, 15.11.2019

Omodele Eletta , Latifat Adewoye Sheriff Mustapha Adewale Adeniyi Oladipupo Ogunleye Oladimeji Aladerokun İdowu Tijani

Abstract

Response Surface Methodology(RSM)
involving Central Composite Face Centred Design (CCFCD) was used to optimize the process of solvent extraction of
oil from loofah seeds. The effect of process parameters such as binary solvent
(hexane/ethanol) composition, temperature and extraction time on the response
(yield of oil) was investigated. The designed experiments gave that, the
maximum yield (30 %) of the seed oil was obtained at 60^oC, 150 min
and solvent composition (100% ethanol). However, from the optimization study,
it is observed that, the optimum yield required can best be obtained at 40^oC,
151.9 min and, solvent composition (2% hexane / 98% ethanol) with a
desirability of 100%. There was a good correlation between the predicted and
experimental values using the developed quadratic model for oil yield
prediction with a correlation coefficient (R²) of 0.993. Findings
showed that refining process significantly improved the quality of the extract.
From the Gas Chromatography- Mass Spectrophotometric (GC-MS) analysis, it was
concluded that the extracted loofah seed oil (LSO) could find various
applications in the soap industry, surface coating, and other areas.

Keywords

Waste Management, Luffa cylindrical, Oil, Extraction, Optimization

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