Efficient open cultivation of cyanidialean red algae in acidified seawater
Autor: | Reiko Tomita, Mio Ohnuma, Tsuneyoshi Kuroiwa, Haruko Kuroiwa, Shin-ya Miyagishima, Takayuki Fujiwara, Shunsuke Hirooka |
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Rok vydání: | 2020 |
Předmět: |
Microbiological Techniques
0301 basic medicine Physiology lcsh:Medicine Red algae Cyanidium caldarium Article 03 medical and health sciences Pigment 0302 clinical medicine Microalgae Seawater lcsh:Science High potential Multidisciplinary biology Galdieria sulphuraria Chemistry lcsh:R Reproducibility of Results Hydrogen-Ion Concentration Contamination biology.organism_classification Culture Media 030104 developmental biology Cyanidioschyzon merolae Environmental chemistry visual_art Rhodophyta visual_art.visual_art_medium lcsh:Q Plant sciences Acids 030217 neurology & neurosurgery |
Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-12 (2020) |
ISSN: | 2045-2322 |
DOI: | 10.1038/s41598-020-70398-z |
Popis: | Microalgae possess high potential for producing pigments, antioxidants, and lipophilic compounds for industrial applications. However, their open pond cultures are often contaminated by other undesirable organisms, including their predators. In addition, the cost of using freshwater is relatively high, which limits the location and scale of cultivation compared with using seawater. It was previously shown that Cyanidium caldarium and Galdieria sulphuraria, but not Cyanidioschyzon merolae grew in media containing NaCl at a concentration equivalent to seawater. We found that the preculture of C. merolae in the presence of a moderate NaCl concentration enabled the cells to grow in the seawater-based medium. The cultivation of cyanidialean red algae in the seawater-based medium did not require additional pH buffering chemicals. In addition, the combination of seawater and acidic conditions reduced the risk of contamination by other organisms in the nonsterile open culture of C. merolae more efficiently than the acidic condition alone. |
Databáze: | OpenAIRE |
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