BioChem - DOS

Evaluation of oil-producing algae as potential biodiesel feedstock

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

Zhou, X.; Ge, H.; Xia, L.; Zhang, D.; Hu, C.

This study attempted to connect the dots between laboratory research and the outdoors. Chlorella sp. NJ-18 was selected among seven oil-producing algae cultivated in this study because it had the highest lipid productivity. The nitrogen and phosphorus concentrations for cultivating this Chlorella strain were optimized indoors. This strain was incubated outdoors in a 70L photobioreactor, containing the favorable nitrogen (8.32mM urea) and phosphorus (0.18mM monopotassium phosphate) concentrations. Semi-continuous cultivation was performed by harvesting 30L biomass and replacing it with fresh medium. The maximum biomass and lipid productivity acquired outdoors were 91.84 and 24.05mgL<SUP>-1</SUP>d<SUP>-1</SUP>, respectively. Furthermore, biomass productivity could be maintained at a high level throughout the cultivation process when using the semi-continuous mode, whereas it decreased dramatically in batch cultures. More than 95% of the total fatty acids obtained were C16 and C18, which are the main components for biofuel.

2013

Elsevier Applied Science

0960-8524

134

pp.24-29

10.1016/j.biortech.2013.02.008

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART65789834

Biodiesel; Nitrogen; Phosphorus; Semi-continuous; Outdoor conditions