Characterization of and fatty acid components under a wide range of light intensity and growth temperature for their use as biological resources.

This study aims to characterize the potential of three strains of microalgal species ( KNUA114 and KNUA122; KNUA104) for use as feedstock, based on their fatty acid compositions. Each strain was molecularly identified using four marker genes (, , , and ) and phylogenetically characterized. and collected from Ulleung Island, South Korea, were homologous with other known species groups. Samples' fatty acid components were measured using GC/MS analysis in growth temperatures of 10 °C, 25 °C, and 35 °C. The growth rate of strains was higher than that of under high-temperature conditions, confirming the potential industrial applicability of the former as feedstock material. Additionally, saturated fatty acid contents and productivities increased as biological resources of the strains were higher than those of under high light intensity and temperature conditions. These results suggest that the fatty acid components of strains may potentially be used as biological resources (e.g., feedstock).