Kemal, Mustefa (2015) Optimization of Process Parameters for the Extraction of Oil from Mango Seed Kernel (Mangifera indica) for Cosmetics Application. Masters thesis, Addis Ababa University.
![[img]](http://thesisbank.jhia.ac.ke/style/images/fileicons/application_pdf.png) |
PDF (Optimization of Process Parameters for the Extraction of Oil from Mango Seed Kernel (Mangifera indica) for Cosmetics Application)
Mustefa Kemal(1).pdf - Accepted Version Restricted to Repository staff only Download (2MB) | Request a copy |
Abstract
The main aim of the study was to determine the optimum operating condition for the extraction of oil from mango seed kernel. For this, particle size range of 0.25 mm - 0.5 mm, 0.5 mm - 1.5 mm and 1.5 mm – 3 mm, solvent type hexane, ethanol and petroleum ether and extraction time of 2 hr, 4 hr and 6 hr were considered for optimization. A general factorial design was applied to investigate the effect of process variables on oil yield. Maximum oil yield of 84.81% was obtained for particle size range of 0.25 mm - 0.5 mm at extraction time of 6 hr and with solvent type hexane followed by a yield of 83.33% at particle size range 0.25 mm - 0.5 mm, solvent type petroleum ether and 6 hour extraction time. And minimum oil yield of 18.88% was obtained for particle size range 1.5 mm – 3 mm at extraction time of 2 hr and with solvent type ethanol. ANOVA analysis was showed significant effect of particle size, solvent type and extraction time on oil yield (P value < 0.05). When the particle size range decreased from 1.5 mm – 3 mm to 0.25 mm - 0.5 mm the oil yield increased from 64.07% to 84.81% for solvent type hexane and for 6 hr extraction time. As extraction time was increased from 2 hr to 6 hr the oil yield increased from 57.41% to 84.81% for solvent type hexane and particle size range 0.25 mm - 0.5 mm. Quadratic regression model equations were obtained to describe the effect of variables on the oil yield. The physicochemical properties (total phenolic content, unsaponifiable matter, iodine value, acid value, saponification value, moisture and volatile matter, pH, viscosity, refractive index and specific gravity) of the oil extracted under optimum condition were determined and compared to those of the commercial available mango kernel oil and Indian standards for mango kernel fat. It was found that the physicochemical properties are within the standard except the acid value which is slightly higher. The result also indicated that there is a presence of high unsaponefiable matter (3.85%) and phenolic content (115mg/g for ethanol extract, 83.2mg/g hexane extract and 79.6mg/g for petroleum extract) in the mango kernel oil (obtained from local variety) which makes the oil suitable for cosmetics application.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Mango seed kernel oil, Total Phenolic content, Unsaponefiable matter, Extraction |
| Subjects: | H Social Sciences > HF Commerce Q Science > QD Chemistry R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine S Agriculture > S Agriculture (General) S Agriculture > SB Plant culture T Technology > TP Chemical technology |
| Divisions: | Africana |
| Depositing User: | Andriamparany Edilbert RANOARIVONY |
| Date Deposited: | 13 Jul 2018 08:20 |
| Last Modified: | 13 Jul 2018 08:20 |
| URI: | http://thesisbank.jhia.ac.ke/id/eprint/7383 |
Actions (login required)
 |
View Item |