The Effect of Nutrients Mixture on The Biomass and Lipid Production from Microalgae Botryococcus braunii Mutated by UV-C Rays

Nutrient is one of the most important factors in growth microalgae. This research was conducted to study effect nutrient mixture on biomass and lipid production Botryococcus braunii. Microalgae B. braunii cultivated commercial medium agricultural fertilizer combinations ammonium sulphate (ZA), urea, triple superphosphate (TSP). Before cultivation process, exposed UV-C rays (254 nm) for 3 minutes. The concentration type as a nitrogen source divided into four types mixtures, namely FM-1, FM-2, FM-3, FM-4 were compared with Walne nutrients their effects microalgae lipids. FM-1 consisting 150 mg/L ZA, 7.5 25 TSP led best native mutated strains other mixtures. showed less than strains. However, mutation process significantly increased content In strains, 136.3 urea 50 produced lowest at 8.96%. After being rays, lipids 55.11%. results show that use fertilizers exposure have high potential preparing raw material biodiesel which can be effectively applied large-scale cultivation.