کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11029964 | 1646403 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of biomass, lipids, and polyunsaturated fatty acid (PUFA) production in Nannochloropsis oceanica with a combination of single wavelength light emitting diodes (LEDs) and low temperature in a three-phase culture system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
A three-phase culture system combining blue (465â¯nm) light-emitting diode (LED) wavelength as the first phase, green (550â¯nm) as the second phase, and temperature stress as the third phase was applied to a Nannochloropsis oceanica culture in 14-L photobioreactors. Microalgal growth promotion parameters were optimized in the first phase, followed by green LED stress for lipid production in the second phase. Maximum biomass and lipid production values of 0.75â¯gdcwâ¯Lâ1 and 57.6% (w/w) were obtained at an aeration rate of 0.50â¯vvm, with a light intensity of 250â¯Âµmolâ¯mâ2â¯sâ1 and 24:0â¯hâ¯light/dark cycle. Culture temperatures of 15, 10 and 5â¯Â°C were applied in the third phase, where temperature stress induced the production of monounsaturated and polyunsaturated fatty acid synthesis in N. oceanica. The production of α-linolenic acid, eicosapentaenoic acid and docosahexaenoic acid increased by 52% (w/w), 96% (w/w), and 77% (w/w), respectively, at 5â¯Â°C in the third phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 270, December 2018, Pages 504-511
Journal: Bioresource Technology - Volume 270, December 2018, Pages 504-511
نویسندگان
Phunlap Sirisuk, InYung Sunwoo, So Hee Kim, Che Clovis Awah, Chae Hun Ra, Jong-Myung Kim, Gwi-Taek Jeong, Sung-Koo Kim,