BioChem - DOS

Two-stage cultivation of two Chlorella sp. strains by simultaneous treatment of brewery wastewater and maximizing lipid productivity

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

Farooq, W.; Lee, Y.C.; Ryu, B.G.; Kim, B.H.; Kim, H.S.; Choi, Y.E.; Yang, J.W.

A cultivation system in the two-stage photoautotrophic-photoheterotrophic/mixotrophic mode was adapted to maximize lipid productivity of two freshwater strains of Chlorella sp. grown in brewery wastewater (BWW). The endogenous Chlorella sp. isolated from BWW had a higher growth rate than wild-type Chlorella vulgaris (UTEX-265) while C. vulgaris (UTEX-265) had a higher maximal biomass and lipid contents than that of endogenous Chlorella sp., resulting in more than 90% of the inorganic nutrients in both total nitrogen (TN) and phosphorus (TP) was removed during the first stage in the two-stage photoautotrophic-photoheterotrophic mode in each Chlorella sp. The maximal biomass and lipid contents of C. vulgaris (UTEX-265) for single stage photoautotrophic cultivation were 1.5g/L and 18%, respectively. Importantly, during two-stage photoautotrophic-photoheterotrophic cultivation for C. vulgaris (UTEX-265), the biomass was increased to 3.5g/L, and the lipid productivity was increased from 31.1 to 108.0mg/Lday.

2013

Elsevier Applied Science

0960-8524

132

pp.230-238

10.1016/j.biortech.2013.01.034

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART65633125

Wastewater treatment; Microalgal biodiesel; Two-stage cultivation; Lipid productivity; Contamination control