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KMID : 0545120150250050723
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Journal of Microbiology and Biotechnology
2015 Volume.25 No. 5 p.723 ~ p.731
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Morphological, Molecular, and Biochemical Characterization of Monounsaturated Fatty Acids-Rich Chlamydomonas sp. KIOST-1 Isolated from Korea
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Jeon Seon-Mi
Kim Ji-Hyung
Kim Tae-Ho
Park A-Reu-Mi
Ko Ah-Ra
Ju Se-Jong
Heo Soo-Jin
Oh Chul-Hong
Md. Abu Affan
Shim Won-Bo
Kang Do-Hyung
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Abstract
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Microalgae hold promise as producers of sustainable biomass for the production of biofuels and other biomaterials. However, the selection of strains with efficient and robust production of desirable resources remains challenging. In this study, we isolated a green microalga from Korea and analyzed its morphological, molecular, and biochemical characteristics. Microscopic and phylogenetic analyses demonstrated that the isolate could be classified into the genus Chlamydomonas, and we designated the isolate Chlamydomonas s p. K IOST -1. Compositions of protein, lipid, and carbohydrate in the microalgal cells were estimated to be 58.8 ± 0.2%, 22.7 ± 1.2%, and 18.5 ± 1.0%, respectively. Similar to other microalgae belonging to Chlorophyceae, the dominant amino acid and monosaccharide in Chlamydomonas sp. KIOST-1 were glutamic acid and glucose. On the other hand, the proportions of saturated fatty acids, monounsaturated fatty acids, and polyunsaturated fatty acids clearly differed from other species in the genus Chlamydomonas, and monounsaturated fatty acids accounted for a large portion (41.3%) of the total fatty acids in the isolate. Based on these results, Chlamydomonas sp. KIOST-1 has advantageous characteristics for biomass production.
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KEYWORD
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microalgae, Chlamydomonas sp. KIOST-1, phylogenetic analysis, monounsaturated fatty acids, biomass, Korea
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