3.1. Bone drying of C. minutissima slurry
The microalgal slurry was taken in glass vials and kept for drying in a
laboratory-scale oven at 103 ± 2 °C for 24 h. This was referred to be
bone drying materials. The moisture content of the microalgal slurry was
found to be ~90% of the wet biomass (wb). The lipid
yield of the bone-dried samples was recorded to be 142.1 ± 4.1 mg
g-1 of dry biomass, whereas for the biomass slurry
dried at 60 ± 2 °C till to reach constant weight following Rai, Mallick,
Singh, & Kumar (1991) in the same laboratory-scale oven was 146.3 ± 3.2
mg g-1 of dry biomass (Table 2). These observations
revealed that there was insignificant variation in lipid yield between
the bone-dried and the biomass obtained by drying at 60 °C, although the
biomass yield varied significantly under both the conditions.