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Chlorella fusca (Chlorophyta) grown in thin-layer cascades: Estimation of biomass productivity by in-vivo chlorophyll a fluorescence monitoring
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SYSNO ASEP 0469217 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Chlorella fusca (Chlorophyta) grown in thin-layer cascades: Estimation of biomass productivity by in-vivo chlorophyll a fluorescence monitoring Author(s) Jerez, C.G. (ES)
Malapascua, José R.F. (MBU-M)
Sergejevová, M. (CZ)
Masojídek, Jiří (MBU-M) RID, ORCID
Figueroa, F.L. (ES)Source Title Algal Research-Biomass Biofuels and Bioproducts. - : Elsevier - ISSN 2211-9264
Roč. 17, July 2016 (2016), s. 21-30Number of pages 10 s. Language eng - English Country NL - Netherlands Keywords Biomass productivity ; Chlorella ; Electron transport rate (ETR) Subject RIV EE - Microbiology, Virology R&D Projects ED2.1.00/03.0110 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EE2.3.30.0059 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LO1416 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support MBU-M - RVO:61388971 UT WOS 000378863700003 EID SCOPUS 84964460040 DOI 10.1016/j.algal.2016.04.010 Annotation The microalga Chlorella fusca showed high biomass productivity in thin-layer cascades (TLCs) with large light-exposed surface (high exposed surface to total volume ratio; S/V). Two trials – E1 and E2 – were conducted in Malaga (Southern Spain) in July and October, respectively using a TLC with an S/V ratio of 27 m− 1. The third trial E3 was carried out in the Czech Republic in July using another TLC with an S/V ratio of 120 m− 1. Chl a fluorescence measurements (in situ and off-line) were carried out to monitor the photosynthetic performance of these cultures. Simultaneous measurement of irradiance and effective quantum yield through the day allowed the determination of daily electron transport rate (ETR), which led to the estimation of biomass productivity. Calculated data of biomass productivity of microalgal mass cultures were well correlated with the measured values. The E3 culture achieved the highest productivity of the three trials − 27 g DW m− 2 d− 1. Extrapolating these results to southern Spain, with a longer cultivation period and higher daily dose of the solar energy, and considering a photosynthetic efficiency (PE) of 4.4 percent (achieved in E3), we obtained a potential productivity of 43 metric tons ha− 1 year− 1 if the unit is operated for 8 months (from March to October). Realistically, in locations with favorable climate, TLCs can be considered a suitable system for biomass production with high PE as well as easy maintenance and low operation costs. On-line monitoring of in situ Chl a fluorescence provided data that revealed essential information about the photosynthetic performance of the culture. Here, we present a first attempt of estimating biomass productivity based on ETR measurements in microalgal mass cultures that correlate well with the measured values. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2017
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