PRODUCTIVITY OF THE Thalassiosira sp. CULTIVATED IN OUTDOOR PHOTOBIOREACTORS

• Main Author: DEWI (NIM : 20511309), ROSMAYA
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/19373
• Institution: Institut Teknologi Bandung

Previous study showed that the diatom Thalassiosira sp. was potential as a source of biodiesel fuel from lipids (oils). To determine biomass and oil productivity in <br /> <br /> <br /> <br /> <br /> large-scale outdoor photobioreactors, the present study investigated the optimization of growing medium composition and biomass production. Optimization of growing medium composition was carried out using <br /> <br /> <br /> <br /> <br /> macronutriens obtained from fertilizers as TSP-36 as a phophorous source and Si- P-(PG) as a silicon source. The optimization of cell growth was performed using <br /> <br /> <br /> <br /> <br /> indoor photobioreactors with conditions of 13.50 &#956;mol m-2 s-1 light intensity, 24:0 light-dark photoperiod, and 30 ppt salinity. In the feasibility test of fertilizer <br /> <br /> <br /> <br /> <br /> medium as well as Walne medium, the cells were grown in conditions of 13,50 &#956;mol m-2 s-1 light intensity, 24:0 light-dark photoperiod, and 30 ppt salinity. In addition, the growth conditions of 12:12 light-dark photoperiod, 81 &#956;mol m-2 s-1 light intensity, and 30 ppt salinity were also carried out.