Lipid Production by Arctic Microalga Chlamydomonas sp. KNF0008 at Low Temperatures |
| |
Authors: | Kim Eun Jae Jung Woongsic Lim Suyoun Kim Sanghee Choi Han-Gu Han Se Jong |
| |
Institution: | 1.Division of Polar Life Sciences, Korea Polar Research Institute, Incheon, 21990, South Korea ;2.Department of Polar Sciences, University of Science and Technology, Incheon, 21990, South Korea ;3.Department of Research and Development, GDE, Siheung, 14985, South Korea ;4.Functional Genomics R&D Team, Syntekabio, Daejeon, 34025, South Korea ; |
| |
Abstract: | A lipid-producing microalga, Chlamydomonas sp. KNF0008, collected from the Arctic was capable of growing at temperatures ranging from 4 to 20 °C, and the highest cell density was measured at 15 °C and 100 μmol photons m?2 s?1 light intensity under continuous shaking and external aeration. KNF0008 showed the elevated accumulation of lipid bodies under nitrogen-deficient conditions, rather than under nitrogen-sufficient conditions. Fatty acid production of KNF0008 was 4.2-fold (104 mg L?1) higher than that of C. reinhardtii CC-125 at 15 °C in Bold’s Basal Medium. The dominant fatty acids were C16:0, C16:4, C18:1, and C18:3, and unsaturated fatty acids (65.69%) were higher than saturated fatty acids (13.65%) at 15 °C. These results suggested that Arctic Chlamydomonas sp. KNF0008 could possibly be utilized for production of biodiesel during periods of cold weather because of its psychrophilic characteristics. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|