Potentials of non-edible Abrus precatorius seed oil towards biodiesel production
| Autor: | Chidozie Victor Agu, Emeka Godwin Anaduaka, Joseph Chikodili Obeta, Christopher Chukwudi Okonkwo, Obioma U. Njoku |
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| Rok vydání: | 2014 |
| Předmět: |
Saponification value
Biodiesel Acid value Chemistry Applied Microbiology and Biotechnology chemistry.chemical_compound Iodine value Biodiesel production Genetics Organic chemistry Food science Peroxide value Agronomy and Crop Science Molecular Biology Fatty acid methyl ester Unsaturated fatty acid Biotechnology |
| Zdroj: | African Journal of Biotechnology; Vol 13, No 44 (2014) |
| ISSN: | 1684-5315 4226-4235 |
| DOI: | 10.5897/ajb2014.13979 |
| Popis: | Abrus precatorius seed oil is not edible and possesses lethal toxicological properties; hence, alternative use as low cost feedstock for biodiesel production was investigated. The n-hexane extracted oil was characterized for its chemical and physical properties, and subsequently transesterified using 1% sodium hydroxide at 60°C to produce biodiesel. The biodiesel produced had acceptable quality following characterization of its fuel properties. The relative density was found to be 0.889 with kinematic viscosity of 3.34 mm2/s within limits of Thailand biodiesel fuel standard. The acid value was 0.281 mg KOH/g, iodine value 52.43 mgI2/g, peroxide value 3.45 mEq/kg, saponification value 227.8 mg KOH/g and 2.87% free fatty acid content. The flash point and the cetane number were 137°C and 58.3, respectively while the heat of combustion was 38.28 MJ/Kg. The low temperature operability properties of A. precatorius seed biodiesel determined by parameters such as cloud point, pour point and cold-filter plugging point were - 2, 1 and - 4°C, respectively. The sulfated ash value and refractive index were found to be 0.09% and 1.457, respectively. GC analysis of the fatty acid methyl esters profile revealed 50.86 and 49.1%, saturated and unsaturated fatty acid methyl esters (FAME), respectively. A percentage FAME yield of 86.1%; with higher content of methyl palmitoleate (31.94%) and a lowest value for methyldecanoate (1.27%) was obtained. Although a n-hexane oil yield was low (2.52% w/w), the results show that Abrus seed oil derived biodiesel has commercially acceptable fuel properties and may be suitable as fuel for internal combustion engine.Keywords: Biodiesel, Abrus precatorius, oil, non-edible oil, fatty acid methyl esterAfrican Journal of Biotechnology, Vol 13(44) 4226-4235 |
| Databáze: | OpenAIRE |
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