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

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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 1.5 g/L and 18%, respectively. Importantly, during two-stage photoautotrophic photoheterotrophic cultivation for C vulgaris (UTEX-265), the biomass was increased to 3.5 g/L, and the lipid productivity was increased from 31.1 to 108.0 mg/L day. (C) 2013 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2013-03
Language
English
Article Type
Article
Keywords

MIXOTROPHIC CULTIVATION; BIODIESEL PRODUCTION; CARBON SOURCE; MICROALGAE; BIOMASS; GROWTH; VULGARIS; BIOFUELS; ALGAE

Citation

BIORESOURCE TECHNOLOGY, v.132, pp.230 - 238

ISSN
0960-8524
DOI
10.1016/j.biortech.2013.01.034
URI
http://hdl.handle.net/10203/173819
Appears in Collection
CBE-Journal Papers(저널논문)
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