And palm kernel oil (247 mg KOH gm) (Pearson, 1976). Nonetheless, this saponification
And palm kernel oil (247 mg KOH gm) (Pearson, 1976). Nonetheless, this saponification worth is within exactly the same array of some edible oils reported by Eromosele and Paschal (2002). Furthermore, saponification worth (174.95) in the oil within this investigation is nearly inside the array of (17587) ASTM (2002) specification for oils. As outlined by Pearson (1976), oils with lower saponification values include high volume of long chain fatty acids. Consequently, the value obtained for brebra seed oil contained high quantity of larger fatty acids (as it is presented on Table 6, fatty acids 18 carbonAndualem and Gessesse SpringerPlus 2014, 3:298 http:springerpluscontent31Page 6 ofTable five Brebra oil chemical and physical characteristicsOil physicochemical qualities Colour Caspase 10 Biological Activity Density at 20 Particular gravity at 20 Kinematic Viscosity at 40 Acid value pH value Saponification value Refractive index at 40 Iodine value Peroxide worth Ester valueAll values are mean value of triplicates.Unit Kgm3 kgl mm2s mg KOHgValues Pale-yellow colour limpid liquid 0.942 0.926 40.59 0.39 six.mg KOHg174.95 1.gI2100 gm mEqKg104.48 six.88 174.chain accounts 92.8 ). The worth of viscosity of brebra oil was 40.49 mm2s (as described above) is found to be significantly less than the viscosity of cashew nut oil (56 mm2s) (Akinhanmi et al. 2008). For production of biodiesel, hence, transesterification reaction is the most effective method to cut down the viscosity from the oil. The oil beneath investigation has really low acid value of 0.39 mg KOHg when compared with cashew nut oil (0. 82 mg KOHg) (Aremu et al. 2006), refined castor oil (0.869) and crude castor oil (1.148) (Akpan et al. 2007), plukenetia conophoora (11.5 mg KOHg) as reported by IL-2 Synonyms Akintayo and Bayer (2002), aenniseed (47.six ) by Ohsodi (1992). The acid value in this oil is under the maximum limit (2.0 mg KOHg) of DIN EN ISO 660 and almost within the range of ASTM specification (0.four – four.0) of castor oil (ASTM 2002).Table 6 Fatty acid composition of fatty acid of brebra oil (FAs = fatty acids)No 1 2 three 4 five Fatty acids Unsaturated FAs Oleic Linoleic Linolenic Arachidonic Eurcic Total Saturated FAs 6 7 eight 9 Palmitic Stearic Arachidic Behenic Total C16:0 C18:0 C20:0 C22:0 7.2 1.9 3.3 six.9 19.three C18:1 C18:2 C18:3 C20:four C22:1 0.6 48.two 27.7 0.eight three.four 80.7 Carbon number Quantity ( )The low saponification value and acid worth imply that the oil is far more proper for biodiesel since the oil acid worth for biodiesel, that is significantly less than 1 . The iodine value of brebra oil was 104.48 gI2100 gm (within the variety, 100-120 gI2100 gm, of DIN) which can be higher than the selection of 774 gI2100 gm olive oil, 80 gI2 100 gm coconut oil, 128 gI2100 gm palm kernel, 4458 gI2100 gm palm oil, 855 palme oleine, 205 gI2 100 gm palme stearine, 500 gI2100 gm tallow, 600 gI2100 gm lard, (http:dec2.tec.agrar.tu-muenchen.de pflanzoelrkstandarde.html) 44.4 gI2100 gm cashew nut oil (Aremu et al. 2006), 38.1 gI2100 gm citrullus vulgaris (Achinewhu 1990), Hausa melon seed oil (38.50 gI2100 gm) (Oladimeji et al. 2001) and 84.8 gI2100 gm refined castor oil (Akpan et al. 2007). One the other hand, the iodine worth of this study was lower than the selection of 11015, 12535, 12540, and 11524 gI2100 gm value of rapeseed oil, sunflower oil, soybean oil and corn oil, respectively. The oil within this study is regarded as drying oil because drying oils have an iodine value above 100 gI2100 gm (Duel and Tr 1951). The peroxide worth of brebra oil was 6.88 mEqKg. It was higher than the peroxide value of 3.1 mEqKg of cash.