Biofuel research. Gloved hands holding Jatropha curcas seeds. Oil extracted from the seeds of Jatropha plants is used as a biofuel, and can be further refined into biodiesel, suitable for use in a conventional diesel engine. Biofuels such as biodiesel are clean, renewable sources of energy, and have less impact on the environment than fossil fuels such as diesel, petrol and coal.
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