Jatropha cinerea seed oil as a potential non-conventional feedstock for biodiesel produced by an ultrasonic process [Aceite de semillas de jatropha cinerea como fuente potencial no convencional de biodiesel obtenido por ultrasonido] Article uri icon

abstract

  • This work demonstrates that Jatropha cinerea (J. cinerea) seed oil has potential as a new, non-conventional, bio-energy resource. The physical and chemical properties of J. cinerea seeds, collected from its natural habit, were evaluated. The length-, diameter- and weight- of seeds were in the ranges of 8 to 12 mm, 7.5 to 11 mm, and 0.2 to 0.7 g, respectively. Additionally, the amount of oil in the seed kernel was 65.77 wt.%25, and it contained 15%25 saturated, 33%25 monounsaturated, and 51%25 polyunsaturated fatty acids. The major constituent (50.8 wt%25) of crude J. cinerea oil was linoleic acid. Based on its content of phorbol esters (0.22 mg g-1), J. cinerea was considered to be a non-toxic Jatropha species. Iodine, saponification, and acid values of the J. cinerea seed oil were similar to those of the J. curcas seeds oil; therefore, it was suggested that J. cinerea oil had the quality required for biodiesel production from J. cinerea seeds oil was produced by a sonotransesterification process, evaluating the effect of the methanol: oil molar ratio (MOR), temperature, and reaction time. The best conditions for biodiesel production were 25ºC, a MOR of 4:1, and a notably short reaction time of 20 s. These conditions were very advantageous as compared to those required by conventional processes, and very promising for the development of a low cost biodiesel production process using J. cinerea seed oil as a feedstock. © 2014, Universidad Autonoma Metropolitana Iztapalapa. All rights reserved.

publication date

  • 2014-01-01