| Literature DB >> 27107342 |
Chae-Hun Ra1, Chang-Han Kang2, Jang-Hyun Jung1, Gwi-Taek Jeong1, Sung-Koo Kim3.
Abstract
Conditions of light-emitting diode (LED) wavelength, light intensity, nitrate concentration, and time of exposure to green LED light stress in a two-phase culture were optimized for lipid production with three species of microalgae. Among the three microalgae, Nannochloropsis oculata showed the highest specific growth rate (μmax) of 0.037h(-1) and the lowest saturation constant (Ks) of 1.32mg/L. The highest lipid contents of the three microalgae in the second phase under green LED light stress were 52.0% (w/w) for Nannochloropsis salina at 2days, 53.0% (w/w) for Nannochloropsis oceanica at 2days, and 56.0% for N. oculata at 2days. Fatty acid analysis of the microalgae showed that 85-87% (w/w) of total fatty acids from N. salina, N. oceanica, and N. oculata consisted of palmitic acid (C16:0) and oleic acid (C18:1).Entities:
Keywords: Fatty acid; Light-emitting diodes (LEDs); Lipid content; Microalgae; Two-phase culture
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Year: 2016 PMID： 27107342 DOI： 10.1016/j.biortech.2016.04.059
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642