Effects of light-emitting diodes (LEDs) on the accumulation of lipid content using a two-phase culture process with three microalgae

被引：91

作者：

Ra, Chae-Hun ^{[1
]}

Kang, Chang-Han ^{[2
]}

Jung, Jang-Hyun ^{[1
]}

Jeong, Gwi-Taek ^{[1
]}

Kim, Sung-Koo ^{[1
]}

机构：

[1] Pukyong Natl Univ, Dept Biotechnol, Busan 48513, South Korea

[2] Busan Technopk Marine Bioind Dev Ctr MBDC, Busan 46048, South Korea

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 212卷

关键词：

Microalgae; Lipid content; Fatty acid; Light-emitting diodes (LEDs); Two-phase culture; FATTY-ACID-COMPOSITION; CHLORELLA-VULGARIS; MARINE MICROALGAE; GROWTH; TEMPERATURE; INTENSITY; QUALITY; NITRATE;

D O I：

10.1016/j.biortech.2016.04.059

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

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 (mu(max)) of 0.037 h (1) and the lowest saturation constant (K-s) of 1.32 mg/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 sauna at 2 days, 53.0% (w/w) for Nannochloropsis oceanica at 2 days, and 56.0% for N. oculata at 2 days. Fatty acid analysis of the microalgae showed that 85-87% (w/w) of total fatty acids from N. satina, N. oceanica, and N. oculata consisted of palmitic acid (C16:0) and oleic acid (C18:1). (C) 2016 Published by Elsevier Ltd.

引用

页码：254 / 261

页数：8

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