STUDIES ON THE EFFECT OF NITROGEN NUTRITION ON GROWTH AND LIPID CONTENT OF MICROALGA BOTRYOCOCCUS braunii KSV 1

Kommu Sasikanth; Sharma M.C.

Volume : IV, Issue : VI, June - 2015

STUDIES ON THE EFFECT OF NITROGEN NUTRITION ON GROWTH AND LIPID CONTENT OF MICROALGA BOTRYOCOCCUS braunii KSV 1

Kommu Sasikanth, Sharma M. C.

Abstract :

Sodium nitrate at a concentration of 17.6mM (1X) is the preferred nitrogen source for enhancing the biomass and lipid productivity of Botryococcus aunii KSV1 in BG –11 medium over different concentrations of other nitrogen sources viz., potassium nitrate, ammonium sulphate, ammonium nitrate and urea. Optimal biomass productivity (0.0521g/L/day) and lipid productivity (around 10 mg/L/day) for this microalga were obtained with 1.0X and 0.75X strength BG–11 medium respectively. Botryococcus aunii KSV1 grew better in BG–11 medium at strength 1.0X, whereas 0.5X – 0.75X strengths increased lipid production.