Influence of sphagnum peat extract on the biomass of novel algae Ostravamonas trianguloculus (volvocales, chlorophyceae) from peatland
The Ostravamonas trianguloculus NIES-4318 is a Chlamydomonas-like algae isolated from a peatland in Japan. The water in this area is an important resource, but its low acidity and unique chemical composition have made its application very limited. Therefore, this study is aimed to evaluate the effec...
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Main Authors: | , , |
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Format: | Conference Proceeding |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | The Ostravamonas trianguloculus NIES-4318 is a Chlamydomonas-like algae isolated from a peatland in Japan. The water in this area is an important resource, but its low acidity and unique chemical composition have made its application very limited. Therefore, this study is aimed to evaluate the effect of acidic media from peat extract on the NIES-4318’s biomass production. Algae was cultivated under pH 4.0 and pH 6.6 using Estonia peat soil extract water (EsPW) and compared with AF-6, a common medium for freshwater microalgae. The EsPW medium contained a low concentration of nitrogen but was rich in carbon in comparison to the AF-6 medium. Strain NIES-4318 grew well in both AF-6 and EsPW media. The highest biomass production was attained in cultures in AF6 pH 4.0, while no significant difference was observed between AF-6 pH 6.6 and EsPW pH 4.0. The lowest production was in EsPW pH 6.6 media. On the other hand, oil production from the EsPW pH 4.0 culture was statistically the highest (43.72% of dry biomass). Different compositions of fatty acid were detected in AF-6 and EsPW media. At the end of cultivation, the pH of all media increased to neutral (6.74–7.52). This study shows the merits of this strain for oil production, acidity refinement in peat water, and its possible application in paludiculture. Further research to enhance the biomass and oil production of this strain needs to be conducted. |
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ISSN: | 0094-243X 1551-7616 |
DOI: | 10.1063/5.0183382 |