After the launch of Brazilian program of biodiesel use and production (PNPB) in 2004, the oil seed production became an economic alternative for family farmers since they might have the chance to improve their income and supply the biodiesel enterprises with raw material. Theoretically speaking this picture is easy to draw, but until recently little scientific research was carried out aiming at...

To facilitate the development of bio-based chemicals from renewable and inexpensive natural resources, we sought to produce biosurfactants using non-edible jatropha oil. Twenty yeasts known to produce biosurfactants were tested in this study, and Stamerella bombicola NBRC 10243 was found to use jatropha oil efficiently to produce sophorolipids (SLs) as a mixture of lactone-form SL (L-SL) and ac...

Jatropha curcas L., a perennial plant grown in tropics and subtropics is popularly known for its potential as biofuel. The plant is reported to survive under varying environmental conditions having tolerance to stress and an ability to manage pest and diseases. The plant was explored for its endophytic fungi for use in crop protection. Endophytic fungi were isolated from leaf of Jatropha curcas...

Sophorolipids (SLs) are glycolipidic biosurfactants suitable for various biological and physicochemical applications. The nonedible Jatropha oil has been checked as the alternative raw material for SL synthesis using C. bombicola (ATCC22214). This is useful towards lowering the SL production cost. Through optimization of fermentation parameters and use of resting cell method, the yield 15.25 g/...

Enzymatic transesterification by using lipase as catalyst has become more attractive for the production of biodiesel due to easy separation of products such as glycerol and fatty acid esters. Comparative studies of enzyme catalyzed transesterification of three less attended non edible oils (jatropha, karanja and putranjiva) have been discussed. The maximum yield has been obtained at 3:1 molar r...

This research focusing the performance and emission characteristics study on the application of biofuel emulsions as alternate fuel used Kirloskar AV1 Direct Injection Diesel engine. Diesel engine performance was compared using different fuels, namely Diesel, Jatropha Methyl Ester and Jatropha Methyl Ester Wood Pyrolysis Oil emulsion, by applying various loads. Emission characteristics were obs...

ABSTRACT In this study, an optimized vortex-assisted method for rapid screening of oil content in Jatropha curcas L. (Jatropha) seeds is described. A 24-1IV fractional factorial design was employed to study the influence vortex stirring rate, sample:solvent ratio, extraction time, and number cycles efficiency. Gas chromatography-mass spectrometry (GC-MS) used identification fatty acids. The mos...

Environmentally friendly multipurpose grease formulation has been synthesized by using Jatropha vegetable residual oil with lithium soap and multifunctional additive. The thus obtained formulation was evaluated for its tribological performance on a four-ball tribo-tester. The anti-friction and anti-wear performance characteristics were evaluated using standard test methods. The biodegradability...

The present study deals with the enzymatic synthesis of biodiesel by transesterification of Jatropha oil (Jatropha curcas L.) with ethanol in a solvent-free system. Seven commercial lipase preparations immobilized by covalent attachment on epoxy-polysiloxane-polyvinyl alcohol composite (epoxy-SiO2-PVA) were tested as biocatalysts. Among them, immobilized lipases from Pseudomonas fluorescens (li...