Effects of wavelength mixing ratio and photoperiod on microalgal biomass and lipid production in a two-phase culture system using LED illumination

被引：57
|
作者：
Sirisuk, Phunlap [1 ]
Ra, Chae-Hun [1 ]
Jeong, Gwi-Taek [1 ]
Kim, Sung-Koo [1 ]
机构：
[1] Pukyong Natl Univ, Dept Biotechnol, Busan 48513, South Korea
来源：
BIORESOURCE TECHNOLOGY | 2018年 / 253卷
关键词：
Fatty acid; Lipid content; Microalgae; Mixed LEDs; Two-phase culture; EMITTING-DIODES LEDS; LIGHT-INTENSITY; BIODIESEL PRODUCTION; BIOGAS UPGRADE; CULTIVATION; GROWTH; BIOFUELS; ACCUMULATION; PURIFICATION; PERFORMANCE;
D O I：
10.1016/j.biortech.2018.01.020
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Blue and red light-emitting diodes (LEDs) were used to study the effects of wavelength mixing ratios, photoperiod regimes, and green wavelength stress on Nannochloropsis salina, Isochrysis galbana, and Phaeodactylum tricornutum cell biomass and lipid production. The maximum specific growth rates of I. galbana and P. tricornutum were obtained under a 50: 50 mixing ratio of blue and red wavelength LEDs; that of N. salina was obtained under red LED. Maximum cell biomass for N. salina and P. tricornutum was 0.75 and 1.07 g dcw/L, respectively, obtained under a 24: 0 h light/dark cycle. However, the maximum I. galbana biomass was 0.89 g dcw/L under an 18: 6 h light/dark cycle. The maximum lipid contents for N. salina, I. galbana, and P. tricornutum were 49.4, 63.3 and 62.0% (w/w), respectively, after exposure to green LED. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) were obtained 1% in P. tricornutum and 2% in I. galbana.
引用
收藏
页码：175 / 181
页数：7
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