1Department of Mycology and Plant Pathology, Institute of Agriculture Sciences, B.H.U., Varanasi-221 005, India
2Department of Biochemistry and Biochemical Engineering, JSBB, Sam Higginbottom Institute of Agriculture, Technology and Sciences, Allahabad-211 007, India
3Applied Chemistry Department, Institute of Technology, B.H.U., Varanasi-221 005, India
4Department of Physics, Faculty of Science, B.H.U., Varanasi-221 005, India
*Author for correspondence: Email: shalu.bhu2008@gmail.com
Online published on 14 July, 2015.
Biodiesel is a renewable alternative fuel for the diesel engine derived from natural sources like Jatropha curcas oil. The present study was to estimate the changes that occur in physico-chemical properties of oils extracted from stored Jatropha seeds in comparison to fresh Jatropha seeds. Physico-chemical properties of Jatropha oil viz. acid value, iodine value, saponification value, UV spectroscopy, cetane value, refractive index, viscosity were estimated. All the values were higher in stored seed oil except iodine value which was lower than fresh seeds. The acid value, saponification value, refractive index and viscosity shows negative effect on the quality of Jatropha oil while decrease in iodine value and increase in cetane value is preferable for better quality bio-diesel.
Jatropha curcas, physico-chemical properties, UV-Spectroscopy, bio-diesel
