title: Enzymatic transesterification of Jatropha curcas oil assisted by ultrasonication.
abstract: Ultrasonication used for the production of fatty acid methyl ester from non-edible vegetable oil using immobilized lipase (Chromobacterium viscosum) as a catalyst from Enterobacter aerogenes to make the process fully ecologically and environmental friendly. The optimal conditions for biodiesel production is the molar ratio oil to methanol 1:4, catalyst concentration 5 wt.% of oil, reaction time 30 min, ultrasonic amplitude 50% (100 W/m(3)) and cycle 0.7s. ultrasonication reduce the reaction time comparing to the conventional batch process. The purity and conversion of the biodiesel was 84.5±0.5 analyzed by reversed phase HPLC.
authors.affiliation: Department of Chemistry, Vardhman College Bijnor, Uttar Pradesh, India.
authors.forename: Gajendra
authors.initials: G
authors.lastname: Kumar
authors.forename: Dharmendra
authors.initials: D
authors.lastname: Kumar
authors.lastname: Poonam
authors.forename: Rajeev
authors.initials: R
authors.lastname: Johari
authors.forename: C P
authors.initials: CP
authors.lastname: Singh
mesh_terms: D004951:Esterification / Q000528:radiation effects*; D031286:Jatropha / Q000737:chemistry*; D008049:Lipase / Q000737:chemistry* / Q000528:radiation effects*; D010938:Plant Oils / Q000737:chemistry* / Q000528:radiation effects*; D011829:Radiation Dosage; D013010:Sonication / Q000379:methods*
chemical_list: D010938:Plant Oils; D008049:Lipase