| Abstrak/Abstract |
The application of Euglenaas a carbon capture organism has generated considerable interest among scientists. Through the photosynthesis process, many kinds of metab-olites are produced by Euglena, such as lipids, proteins, and pigments. Due to the metabolites produced by Euglena, it is vital to optimize the carbon capture ability and cell growth rate by adding Zn2+content and giving photoperiodic into Euglenaculture. The purpose of this study is to identify the optimal photoperiod and Zn2+concentration to increase the growth rate, biomass, and metabolite content of Eu-glenasp. This study is a laboratory experiment involving the cultivation of Euglena sp.in various photoperiod cycles (light:dark), namely 24:0, 12:12, 14:10, and 16:8. In addition, Euglena sp.was also cultivated using different concentrations of Zn2+(0 ppm, 5 ppm, 10 ppm, and 15 ppm). The growth of Euglenasp. was monitored for 18 days before being harvested every three days to measure the research parameters, including primary and secondary metabolites. The results showed that the photoper-iod treatment and various concentrations of Zn2+had a significant impact (P<0.05) on the growth rate, biomass, lipid, carbohydrate, protein, chlorophyll, and carotenoid levels of Euglenasp. |
