期刊
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
卷 20, 期 -, 页码 110-117出版社
ELSEVIER
DOI: 10.1016/j.algal.2016.09.015
关键词
Lumostatic operation; Chlorella zofingiensis; High-cell-density culture; Light intensity per dry weight; Continuous culture
资金
- Formation of Centers of Excellence for Private Universities Program of the Ministry of Education, Culture, Science and Technology in Japan
- Malaysia Ministry of Higher Education [FRGS/1/2013/STWN01/UNISEL/02/1]
- Universiti Putra in Malaysia
- SOKA University in Japan
To maximize the production rate of Chlorella zofingiensis, a lumostatic continuous culture was operated under light intensities of 250-1510 mu E m(-2) s(-1). The cell density and volumetric biomass production rate were increased without photo inhibition and reached 13.5 g-dry weight (dw) L-1 on day 21.5 and 2.41 g-dw L-1 day(-1) on day 10.5, respectively. These maximum values were higher than any previous photoautotrophic culture study with C. zofingiensis. The specific growth rate was maintained at a high level > 0.5 day(-1) until the light intensity per dry weight decreased below 28 mu E g-dw(-1) s(-1), which coincided with the value estimated in our previous study, verifying the reliability of this estimated value. There was a strong relationship between the photosynthetic efficiency and light intensity per dry weight for C. zofingiensis. This relationship may be useful for evaluating species-specific productivity to select productive species. (C) 2016 Elsevier B.V. All rights reserved.
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