BioChem - DOS

Ettlia sp. YC001 showing high growth rate and lipid content under high CO2

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

Yoo, C.; Choi, G.G.; Kim, S.C.; Oh, H.M.

Over 100 green-colored colonies were isolated from environmental samples when cultivating on a BG11 agar medium, and 4 strains showing different morphologies were selected based on light microscopic observation. Among these strains, the microalgal species with the highest growth rate under 10% CO<SUB>2</SUB> was identified as Ettlia sp. YC001 using an 18S rDNA-based phylogenetic analysis and morphological comparison. The highest cell density of 3.10g/L (based on dry cell weight) and biomass productivity of 0.19g/L/d were obtained under 5% CO<SUB>2</SUB> after 16days. The lipid content and productivity were also up to 42% of the dry cell weight and 80.0mg/L/d, respectively. The color of the Ettlia sp. YC001 culture changed from green to red after a month due to the accumulation of certain carotenoids. Therefore, it would seem that Ettlia sp. YC001 is appropriate for mitigating CO<SUB>2</SUB> due to its high biomass productivity, and a suitable candidate for producing biodiesel and high-value products.

2013

Elsevier Applied Science

0960-8524

127

pp.482-488

10.1016/j.biortech.2012.09.046

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART65042907

Biodiesel; Carotenoid; Ettlia; Lipid productivity; Microalgae