| dc.description.abstract | Microalgae is a photosynthetic organism in a micro size cell that has a high potential as a
biodiesel feedstock. Nannochloropsis oculate is a distinctive kind of microalgae where its
habitat is in marine water and has a high lipid content. In this research, it is focusing on the
utilization of sodium bicarbonate as an additional nutrition for marine microalgae
Nannochloropsis oculate. The aim of adding sodium bicarbonate is enhancing the growth
and the accumulation of lipid in Nannochloropsis oculate. The growth was examined each
day since the first day of cultivation until the last day of cultivation or day 9. Biomass and
cell productivity are the parameter for analysing the growth. In the other hand, the data for
lipid accumulations were obtained from cell disruptive and FAMEs (Fatty Acid Methyl
Ester) extraction. Nannochloropsis oculate was attained from Balai Besar Perikanan
Budidaya Air Payau Jepara that afterward was cultivated in Pertamina Research and
Technology Innovation. The marine microalgae were cultivated in 4 different concentrations
of bicarbonate, which is 0 g/L; 0,1 g/L; 0,25 g/L; and 0,5 g/L. Through this research, the
results show that the implementation of 0,25 g/L sodium bicarbonate could enhance the
growth and lipid accumulation. Obtained lipid content is 68,22%, biomass productivity is
0,0367 ± 0,016 g/L/day, and cell productivity is 4,99E+12 ± 1,98E+12 cell/day. The
obtained fatty acid also gives a high result in composition of palmitic acid (36,14%) and
oleic acid (11,29%). | en_US |
| dc.description.sponsorship | 1. Pertamina Research and Technology Innovation
2. Septhian Marno, S.T., M.T
3. Irika Devi Anggraini, S.Si., M.T
4. Dr. Suharti Sastroredjo, S.Pd., M.Si
5. Rijal Ali Fikri, S.T | en_US |
