Lipids from the Microalga, 'Botryococcus braunii'

摘要

A high lipid, high hydrocarbon green algae was grown in various chemical and physical environments to optimize the production of biomass and of lipids. Among the variables were temperature, light intensity, light cycling, buffering, and major and minor nutrients. It was found that increasing the light intensity increased the biomass increment and growth rate but at high light intensities there was a marked inhibition of biomass increment and growth rate. Addition of trace metals or case in hydrolysate did not improve cell yield; casein hydrolysate was inhibitory at low concentrations. Aerated cultures gave a better cell yield and grew more rapidly than unaerated cultures. Lipid and hydrocarbon production were also found to be greater in aerated cultures.