[Retracted] Experimental Investigation of Spirulina Microalgae Biodiesel with Metal Nanoadditive on Single-Cylinder Diesel Engine

Table 1

Biomass and lipid productivity of the selected microalgal species.

S. no	Microalgae	Biomass concentration (mg/L)	Lipid content (%)	Lipid productivity (mg/L·d)	Biomass productivity (mg/L·d)
1.	Spirulina
2.	Chlorella vulgaris
3.	Volvox carteri