Scenedesmus obliquus CNW-N as a potential candidate for CO(2) mitigation and biodiesel production.
This study aimed to achieve higher CO(2) consumption ability and lipid productivity of an indigenous microalgal isolate Scenedesmus obliquus CNW-N by a two-stage cultivation strategy. The microalga strain was first cultivated with 10% CO(2) using a nutrient-rich medium to promote cell growth, which was followed by a nutrient-deficient condition to trigger lipid accumulation. The optimal biomass productivity, lipid productivity, and CO(2) consumption rate were 292.50mgL(-1)d(-1), 78.73mgL(-1)d(-1) (38.9% lipid content per dry weight of biomass), and 549.90mgL(-1)d(-1), respectively. This performance is superior to the results from most of the related studies. Under the nutrient-deficient condition, the microalgal lipid was mainly composed of C16/C18 fatty acids (accounting for 89% of total fatty acids), which is suitable for biodiesel synthesis.
Ho
Shih-Hsin
SH
Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan.
Chen
Wen-Ming
WM
Chang
Jo-Shu
JS
D056804:Biofuels / Q000382:microbiology*; D019149:Bioreactors / Q000382:microbiology*; D002245:Carbon Dioxide / Q000378:metabolism*; D005240:Feasibility Studies; D050356:Lipid Metabolism / Q000502:physiology*; D044444:Scenedesmus / Q000145:classification* / Q000378:metabolism*; D013045:Species Specificity
D056804:Biofuels; D002245:Carbon Dioxide