Effects of Temperature and Nitrogen Concentration on Growth and Lipid Accumulation of the Green Algae Chlorella vulgaris for Biodiesel
Makaleler > Tam Makale · 2021
Yazarlar: Şafak Seyhaneyıldız Can, Edis KORU, Semra Cirik, Gamze TURAN, Hatice TEKOĞUL, Tuğba Subakan
Acta Natura et Sicientia, Diğer Kurumların Hakemli Dergileri, Uluslararası, Ebsco, 2021, cilt 2, ss 101-108
DOI: 10.29329/actanatsci.2021.314
Özet
<ul><li>This study investigated the effect of different temperatures and different nitrogen</li><li>concentrations on the lipid content and biomass of Chlorella microalgae. In this study, algae</li><li>were cultured in five media with different amounts NaNO3 as 3, 1.5, 0.80, 0.40 g/L, and three</li><li>temperatures (10, 20, 30 °C). The results of the experiments showed that the optimal</li><li>temperature and nitrogen concentration for the biomass increase in Chlorella vulgaris are 30°C</li><li>and 3 g/L, respectively. It was observed that biomass decreased and lipid amount increased</li><li>due to the decrease in nitrogen concentration. The high lipid amount of 20.80% dry weight</li><li>(DW) was obtained from the algae produced at 30°C in the free-nitrate medium. The</li><li>contribution of temperature change to lipid production was not as effective as nitrogen</li><li>deficiency in the study. According to the fatty acid analysis results made by GC-FID, C.</li><li>vulgaris seems suitable for biodiesel production because it contains medium-length (C16-C18)</li><li>fatty acid chains.</li></ul>