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Summary: In this study, optimization of the transesterification of Camelina sativa oil using different heterogeneous metal oxide catalysts, i.e., BaO, SrO, MgO, and CaO, was evaluated. The important variables affecting the methyl ester yield during the transesterification reaction are the molar ratio of alcohol/oil, catalyst amount, and reaction temperature. The fuel properties of biodiesel produced were compared to American Society for Testing and Materials (ASTM) standards for biodiesel. Link: http://pubs.acs.org/doi/abs/10.1021/ef900362y?journalCode=enfuem