Bioresource Technology ( IF 11.4 ) Pub Date : 2018-01-04 , DOI: 10.1016/j.biortech.2018.01.020 Phunlap Sirisuk , Chae-Hun Ra , Gwi-Taek Jeong , Sung-Koo Kim
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.
中文翻译:
波长混合比和光周期对LED照明两相培养系统中微藻生物量和脂质产生的影响
使用蓝色和红色发光二极管(LED)来研究波长混合比,光周期制度和绿色波长应力对拟南芥盐藻,等鞭金藻和三角生三角藻细胞生物量和脂质产生的影响。I的最大比增长率。鞭金藻和P。藻进行蓝色和红色波长的LED的50:50混合比例下获得; 那的Ñ。在红色LED下获得盐碱。N的最大细胞生物量。藻和P。角质层在24:0 h的明/暗循环中分别获得0.75和1.07 g dcw / L的dcw / L。然而,最大的我。在18:6 h的明/暗循环下,galbana生物量为0.89 g dcw / L。N的最大脂质含量。萨利纳,我。鞭金藻和P。暴露于绿色LED后,三角锥分别为49.4%,63.3%和62.0%(w / w)。二十碳五烯酸(EPA)和二十二碳六烯酸(DHA)在P中获得1%。Tricornutum和I中的2%。鞭金藻。