Abstract
Biodiesel production from non-edible oils has become one of the most crucial areas in search for renewable fuels due to rapid depletion of fossil fuels and food versus fuel issues. Aleurites trisperma, a tree species belonging to Euphorbiaceae family yields about 25–30-kg seeds per tree per year during July–August. Seeds contain about 38–40 % oil which is rich in nervonic acid. The oil is highly viscous (100.2 mm2/s) with high content of free fatty acids (7.14 %). Biodiesel production has been carried out adopting a two stage process, involving acid esterification and alkali catalyzed transesterification. Transesterification using 1:6 oil to methanol molar ratio at 60 °C for 60 min was optimum with maximum conversion of 96.62 %, indicating this tree oil as a potential non-edible source for biodiesel production.
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Acknowledgments
The authors acknowledge the financial support received from Department of Agriculture and Karnataka State Biofuel Development Board, Government of Karnataka. Also, University of Agricultural Sciences, Bengaluru and Department of Biotechnology, M.S. Ramaiah Institute of Technology, Bengaluru, for facilities and support. Thanks are due to Dr. Balakrishna A.N. for his support and flawless grammatical editing of the manuscript.
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Kumar, K.R., Channarayappa, Chandrika, K. et al. Biodiesel production and characterization from non-edible oil tree species Aleurites trisperma Blanco. Biomass Conv. Bioref. 5, 287–294 (2015). https://doi.org/10.1007/s13399-014-0152-4
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DOI: https://doi.org/10.1007/s13399-014-0152-4