Department of Bioengineering, Faculty of Engineering, University of Ege, 35100, Bornova, Izmir, Turkey.
Department of Bioengineering, Faculty of Engineering, University of Ege, 35100, Bornova, Izmir, Turkey.
Bioresour Technol. 2019 Oct;289:121732. doi: 10.1016/j.biortech.2019.121732. Epub 2019 Jul 2.
Introduction of novel species will highlight technical feasibility of microalgae-based biofuels for commercial applications. This paper reports the effect of culture medium and light wavelength on biomass and fatty acid production of S. bacillaris which holds some advantages as short life cycle, easy cultivation, high lipid content, diversity of fatty acids and stability under harsh environmental conditions. The results displayed that, soil extract (SE) greatly enhance growth rate of cultures. Maximum biomass and lipid productivity were achieved in TAP medium as 81 mg/L·day, 19.44 mg/L·day; respectively. Light wavelength didn't significantly change growth kinetics but played a critical role on chlorophyll-a accumulation. C14:0, C16:0 and C18:0 fatty acids were abundant which are suitable for biodiesel conversion. Interestingly, blue and red light increased longer chain fatty acids content. These results indicated that; S. bacillaris holds potential for further development of biodiesel production and feasibility of algal biodiesel for fundamental and applied sciences.
介绍新物种将突出基于微藻的生物燃料在商业应用中的技术可行性。本文报道了培养基和光波长对 S. bacillaris 生物量和脂肪酸生产的影响，该藻种具有生长周期短、易于培养、脂质含量高、脂肪酸多样性和在恶劣环境条件下稳定等优点。结果表明，土壤提取物（SE）极大地提高了培养物的生长速度。在 TAP 培养基中，最大生物量和脂质生产力分别达到 81mg/L·day 和 19.44mg/L·day。光波长并没有显著改变生长动力学，但对叶绿素-a 的积累起着关键作用。丰富的 C14:0、C16:0 和 C18:0 脂肪酸适合生物柴油转化。有趣的是，蓝光和红光增加了长链脂肪酸的含量。这些结果表明，S. bacillaris 具有进一步开发生物柴油生产的潜力，以及藻类生物柴油在基础和应用科学中的可行性。
