RRC ID 61006
Author Hirooka S, Tomita R, Fujiwara T, Ohnuma M, Kuroiwa H, Kuroiwa T, Miyagishima SY.
Title Efficient open cultivation of cyanidialean red algae in acidified seawater.
Journal Sci Rep
Abstract 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.
Volume 10(1)
Pages 13794
Published 2020-8-24
DOI 10.1038/s41598-020-70398-z
PII 10.1038/s41598-020-70398-z
PMID 32839467
PMC PMC7445282
MeSH Acids / chemistry* Culture Media / chemistry* Culture Media / pharmacology Hydrogen-Ion Concentration Microalgae / classification Microalgae / drug effects Microalgae / growth & development* Microbiological Techniques / methods Reproducibility of Results Rhodophyta / classification Rhodophyta / drug effects Rhodophyta / growth & development* Seawater / chemistry*
IF 3.998
Resource
Algae NIES-2137 NIES-3377