S. N. Timmiati

Penilaian pertumbuhan mikroalga yang telah dipencil dari effluen kilang minyak sawit dalam media sintetik

Discharging waste without removing harmful compounds can lead to serious environmental and health issues. Despite of the high content of pollutants, wastewater environment can become an ideal condition for the growth of several microorganisms. Some species of microalgae have been found living in palm oil mill effluent (POME), making it suitable to be used in biological treatment. However, the ability of microalgae to grow and its composition characteristics in synthetic media are unknown. Therefore, this study evaluated the growth characteristics and biochemical productivity of Chlorella sorokiniana UKM3, Coelastrella sp. UKM4 and Chlorella sp. UMACC324, which had been previously isolated from POME. Bold’s Basal Media (BBM) was used as the medium for cultivation. The experimental works were performed in a lab-scale photobioreactor at room temperature under continuous illumination for 14 days. From this study, Coelastrella sp. UKM4 showed the highest value of growth rates (0.52±0.03 d), biomass productivity (0.07±0.02 g.L.d), lipid content (66.42±2.87 mg.L, 7.26%) and lipid productivity (452.42 mg.L.d), whereas the highest chlorophyll content was observed in Chlorella sorokiniana UKM3 (26.84±1.76 mg.L).