MICROALGAE CULTIVATION

Cultivation of microalgae influences both biomass growth and lipid productivity. Cultur­ing of algae requires the input of light as an energy source for photosynthesis with a sufficient supply of macronutrients (nitrogen and phosphate) and micronutrients (sulphur, potassium, magnesium) in dissolved form (Mata et al., 2010). The main options for algae cultivation on a commercial scale are open-ponds or closed systems called photobioreactors (Chisti, 2007; Robert et al., 2012). There are also hybrid configurations that include a mix of the two growth options. Innovations in algae production allow it to become more productive while consum­ing resources that would otherwise be considered waste (Campbell, 2008).