Table 2.

Comparison of extractive transesterification and in situ methods (Haas and Wagner, 2011).

Sl. no.	Extractive transesterification	In situ transesterification
1	Low heating value	Heating value is high
2	Product yield is low	Higher product yield
3	Process is complex and time taking	Quick and simple operation process
4	Lipid loss during process	Avoided potential lipid loss
5	Waste water pollutes the environment	Reduced waste water pollutants
6	Production cost is high	Absence of harvesting and dewatering lowers the cost