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. 2014 Apr 8;7:55. doi: 10.1186/1754-6834-7-55

Figure 3.

Figure 3

Biodiesel production systems investigated in this study. Schemes of biodiesel production by (A) concurrent transesterification-esterification process and (B) stepwise hydrolysis-esterification process. (C) Biodiesel production by separated extracellular and intracellular lipase using different processes. Integrated biodiesel production via (D) concurrent esterification-transesterification and (E) stepwise hydrolysis-esterification.