stress operation depicting the effect of salinity on lipid composition.
The lipid synthesis noticed with 2 g NaCl/l (TL/NL, 19.1/
7.3%) operation indicates the possibility of microalgae adaptation
to higher salt concentrations. BGP (TL/NL, 15.2/6%) also showed lipid
synthesis along with biomass growth. The absence of nutrient
and carbon during LIP-NS operation might have led to lesser lipid
synthesis than BGP. Lipid productivity correlated well with the
chlorophyll compositions where, LIP operations documented higher
Chl b directing towards lipid accumulation and higher Chl a in
BGP operations promoting biomass growth. The ratio of neutral
to total lipids (N/T) illustrated some interesting observations. In
spite of lower lipid productivity, the N/T value of BGP operation
showed comparatively higher ratio equivalent to 1 g NaCl/l (0.39)
operation followed by 2 g NaCl/l (0.38), 0.5 g NaCl/l (0.31) and
LIP-NS (0.35). It is evident from the above results that the salt
stress has definite influence on the lipid profile during synthesis.