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Biphasic optimization approach for maximization of lipid production by the microalga Chlorella pyrenoidosa
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SYSNO ASEP 0531845 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Biphasic optimization approach for maximization of lipid production by the microalga Chlorella pyrenoidosa Author(s) Sukačová, Kateřina (UEK-B) SAI, RID, ORCID
Búzová, Diana (UEK-B) SAI, ORCID, RID
Červený, Jan (UEK-B) RID, ORCID, SAINumber of authors 3 Source Title Folia Microbiologica. - : Springer - ISSN 0015-5632
Roč. 65, č. 5 (2020), s. 901-908Number of pages 8 s. Language eng - English Country CZ - Czech Republic Keywords nitrogen starvation ; light-intensity ; cultivation ; vulgaris ; growth ; accumulation ; biomass ; ph ; sp. ; photobioreactor Subject RIV EE - Microbiology, Virology OECD category Microbiology R&D Projects LO1415 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_026/0008413 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UEK-B - RVO:86652079 UT WOS 000533036500002 EID SCOPUS 85084652548 DOI 10.1007/s12223-020-00800-w Annotation The aim of the study was to identify the optimum cultivation conditions for the microalgal growth and lipid production of the oleaginous microalga Chlorella pyrenoidosa Chick (IPPAS C2). Moreover, an appropriate NO3- concentration in the cultivation medium for maximized lipid accumulation was determined. The experimental design involved a biphasic cultivation strategy with an initial biomass accumulating phase under optimized light (400 mu mol/m(2) per s), temperature (25 degrees C), and elevated CO2 concentration in the air mixture (3%), followed by a mid-elevated CO2 concentration (0.5%) for lipid induction. The highest lipid yields of 172.47 +/- 18.1 and 179.65 +/- 25.4 mg/L per day were detected for NO3- concentrations of 100 and 150 mg/L. The optimization approach presented here led not only to the maximization of lipid yield but also to the development of a biphasic cultivation strategy easily applicable to the cultivation process without the necessity for algal cell harvesting between the first and second cultivation phases. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2021 Electronic address https://link.springer.com/article/10.1007/s12223-020-00800-w
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