Large scale algal biomass production can be very challenging due to the potential issues of sustain-ability, environmental ethics, and economic concerns. A strategic approach to the transition from the laboratory to the industrial scale allows the prediction of process characteristics, design and analysis of large scale systems, and reduction of extra costs. In this study, a scale-up procedure that consid-ered different approaches was carried out by selecting the Haematococcus pluvialis as a model or-ganism. Three scale-up parameters (constant mixing time (tm), volumetric power consumption rate (P/V), and oxygen mass transfer coefficient (kLa)) were tested for biomass production in a 2-L airlift photobioreactor and they were compared with those obtained from a 1-L aerated cultivation bottle. Among three strategies, the maximum cell concentration, 4.60±0.20×105 cells/mL, was obtained in a constant volumetric power consumption rate experiment. Also, total carotenoid amount showed similar changes with the cell concentration and reached the maximum concentration of 2.02±0.11 mg/L under constant P/V experiment. However, the cultivation bottle presented the highest biomass amount of 0.62 g/L and specific growth rate of 0.38 day-1 of all of the photobioreactors. This result might be attributed to the low aeration rates or improper configuration of the system, which created a non-homogenous culture medium and led to ineffective mass transfer.
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TUBİTAK)
115M014
This study was a part of Cost action ES1408 and the authors would like to thank the Scientific and Technological Research Council of Turkey (TUBITAK) with the project number of 115M014 for the financial support.
115M014
Primary Language | English |
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Journal Section | Research Articles |
Authors | |
Project Number | 115M014 |
Publication Date | June 11, 2022 |
Submission Date | December 14, 2021 |
Published in Issue | Year 2022 Volume: 37 Issue: 3 |
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