کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10687515 | 1017564 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced lipid and fatty acid content under photoheterotrophic condition in the mass cultures of Tetraselmis gracilis and Platymonas convolutae
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Enhanced lipid and fatty acid content under photoheterotrophic condition in the mass cultures of Tetraselmis gracilis and Platymonas convolutae Enhanced lipid and fatty acid content under photoheterotrophic condition in the mass cultures of Tetraselmis gracilis and Platymonas convolutae](/preview/png/10687515.png)
چکیده انگلیسی
The total lipid and FAME concentrations increased under nitrate limitation in both microalgae. The results reflected the dynamic changes in the syntheses of fatty acid (FA) under stress in the studied algae. Between the two algae studied, T. gracilis had the highest percentage of eicosapentaenoic acid (EPA: 14.0%) and eicosatetraenoic acid (ETA: 3.1%) at 0.05 g lâ 1 nitrate concentration. The maximum EPA (4.4%) and ETA (2.0%) concentrations in P. convolutae were observed in the total polyunsaturated fatty acids (PUFAs) grown at a nitrate concentration of 0.1 g lâ 1 in the culture media under outdoor conditions. The major PUFAs detected under different carbon supplements were C20:4 (Ï3), C20:5 (Ï3) and C20:4 (Ï6). T. gracilis had the highest amount of EPA (14.7%) under photoheterotrophic growth with glucose (2 g lâ 1) as the carbon source. The optimal condition for EPA production by P. convolutae (8%) was 1 g lâ 1 glucose at 12-h light photoperiod under indoor mass cultivation and photoheterotrophic growth. These two microalgae had high lipid contents and showed a higher PUFA level under nitrate limitation. This result shows that biomass, lipids, and fatty acids as well as PUFA accumulate and reach elevated levels in these two microalgae species under photoheterotrophic growth conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Algal Research - Volume 6, Part B, October 2014, Pages 180-185
Journal: Algal Research - Volume 6, Part B, October 2014, Pages 180-185
نویسندگان
Palanisamy Selvakumar, Katru Umadevi,