Physico-chemical characteristics of oil and biodiesel from Nigerian and Indian &lt;i&gt;Jatropha curcas&lt;/i&gt; seeds

Belewu, M. A.; Adekola, F. A.; Adebayo, G. B.; Ameen, O. M.; Muhammed, N. O.; Olaniyan, A. M.; Adekola, O.F.; Musa, A. K.

doi:10.4314/ijbcs.v4i2.58169

Cited by 20 publications

(17 citation statements)

References 4 publications

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“…Accordingly, Kaushik et al [20] reported values of kinematic viscosity at 30°C for Jatropha oil from different countries (Variety Capeverde-39cSt, Variety Nicaragua37cSt and Variety Nigeria-17cSt). Similarly, a number of authors have carried out research works on Nigerian jatropha curcas oil from different locations across the country and obtained, to some extent, varying physicochemical properties and fatty acid composition depicted in references [19,[21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Production of environmentally adapted lubricant basestock from jatropha curcas specie seed oil

2017

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Jatropha curcas seed oil was studied for the synthesis of trimethylolpropane based biolube basestock via chemical transesterification of Jatropha methyl ester with trimethylolpropane (TMP) using calcium hydroxide catalyst. Reactions temperatures ranged between 80 and 160°C and methyl esters to TMP mole ratios ranged between 3:1 and 7:1. Product analysis, ester groups and physio-chemical properties were obtained by gas chromatography, Fourier transform infrared spectroscopy and American Society for testing and material standard methods, respectively. Gibbs free energy indicated that the reaction was spontaneous with a second order rate constant of 1.00E-01 (%wt/ wt min C) -1 and kinetic energy of 13.57 kJ/mol. Jatropha biolubricant (JBL) had the following properties: viscosity of 39.45 and 8.51 cSt at 40 and 100°C, respectively; viscosity index of 204, pour point of -12°C and flash point of 178°C. Temperature and mole ratio were the main factors that influenced the reaction. JBL properties complied with ISO VG 32 standard and could be applied as lube basestock with minor modifications.

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Section: Introductionmentioning

confidence: 99%

Production of environmentally adapted lubricant basestock from jatropha curcas specie seed oil

2017

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“…A lot of research has been directed to modify oils to meet specific applications: as biodiesel (Lim and Lee, 2011;Sarin et al, 2010;Belewu et al, 2010, Rashid et al, 2010 *Corresponding author. E-mail: lm.nwokocha@mail.ui.edu.ng.…”

Section: Introductionmentioning

confidence: 99%

Effect of roasting temperature on the physicochemical properties of Jatropha curcas Kernel oil extracted with cold hexane and hot water

Nwokocha¹,

Adegbuyiro²

2017

Afr. J. Pure Appl. Chem.

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The industrial application of a vegetable oil is determined by the oil properties. This work was undertaken to alter the properties of Jatropha curcas Kernel oil and possibly find new applications for it. The seed kernels were roasted to different temperatures (140 to 230°C) and the physicochemical properties of the cold hexane and hot water extracted oils were studied. The oil yield, saponification, iodine, acid and peroxide values were affected by roasting temperature and method of extraction and these showed significant difference (p < 0.05). The calculated fuel properties: cetane number and calorific value were improved upon roasting, with cold hexane extracted oils yielding better results. Roasting improved the properties of the oil as diesel substitute but its suitability for use in paints and surface coatings formulation was reduced. The hot water extracted oil showed improved properties for soap production.

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“…J. curcas plant found in Nigeria has the potential of boosting the economy in term of biodiesel production (Belewu et al, 2010). n-Hexane may be preferable in the extraction of biodiesel oil from J. curcas (Belewu et al, 2010), although petroleum ether had been used with lower yield (Adebayo et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Phytochemical profiling of phytoconstituents of grape, Jatropha curcas and Neem (Azadirachta indica) extracts

Olabinri¹,

Adepoju²,

Zainab³

et al. 2014

J. Pharmacognosy Phytother.

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This study investigated the phytoconstituents in Neem (seed and flower), Jatropha curcas (stem and root bark) and grape (stem bark and leaves) in some selected solvents. Phytochemical screening revealed the presence of bioactive compound saponin in all the parts of the three plants in water extract only. Saponin was absent in other solvents used (ethanol, ethyl acetate, propan-2-ol, methanol, nbutanol and acetone). Ethanol, ethyl acetate and methanol were the most promising solvents to extract flavonoids in both the seed and flower of Neem plant. Acetone and ethanol were the most promising solvents to extract flavonoids in the stem bark of J. curcas. In the root bark of J. curcas, acetone and ethyl acetate were the most promising solvents to extract flavonoids. In grape (Citrus paradisi) leaves, ethanol, water and acetone were the most promising solvents to extract flavonoids. In the stem bark of grape, water, ethyl acetate and acetone proved promising as extraction solvents for flavonoids. All the parts of the plants studied were positive for alkaloid in ethanol and acetone extracts. The seed extract of Neem (Azadirachta indica) was strongly positive in ethanol only. Terpenoids were detected in ethyl acetate and n-butanol in all the parts of the three plants. Aged flower extract of Neem plant with pale pink colour could be exploited as a novel source of colourant. Volatile oil was not restricted to J. curcas stem and root barks, it was also present in C. paradisi stem and root barks. The nutritional significance, economic and toxicological implications of phytoconstituents analysed in the plants were discussed.

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Physico-chemical characteristics of oil and biodiesel from Nigerian and Indian <i>Jatropha curcas</i> seeds

Cited by 20 publications

References 4 publications

Production of environmentally adapted lubricant basestock from jatropha curcas specie seed oil

Production of environmentally adapted lubricant basestock from jatropha curcas specie seed oil

Effect of roasting temperature on the physicochemical properties of Jatropha curcas Kernel oil extracted with cold hexane and hot water

Phytochemical profiling of phytoconstituents of grape, Jatropha curcas and Neem (Azadirachta indica) extracts

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