Department of Chemical Engineering and Materials Science, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA.
Bioresour Technol. 2011 Jan;102(2):1649-55. doi: 10.1016/j.biortech.2010.09.062. Epub 2010 Oct 13.
Production of biofuel from algae is dependent on the microalgal biomass production rate and lipid content. Both biomass production and lipid accumulation are limited by several factors, of which nutrients play a key role. In this research, the marine microalgae Dunaliella tertiolecta was used as a model organism and a profile of its nutritional requirements was determined. Inorganic phosphate PO4(3-) and trace elements: cobalt (Co2+), iron (Fe3+), molybdenum (Mo2+) and manganese (Mn2+) were identified as required for algae optimum growth. Inorganic nitrogen in the form of nitrate NO3- instead of ammonium (NH4+) was required for maximal biomass production. Lipids accumulated under nitrogen starvation growth condition and this was time-dependent. Results of this research can be applied to maximize production of microalgal lipids in optimally designed photobioreactors.
从藻类生产生物燃料取决于微藻生物质生产率和脂质含量。生物质生产和脂质积累都受到多种因素的限制，其中营养物质起着关键作用。在这项研究中，海洋微藻杜氏盐藻被用作模型生物，并确定了其营养需求概况。无机磷酸盐 PO4(3-)和痕量元素：钴 (Co2+)、铁 (Fe3+)、钼 (Mo2+) 和锰 (Mn2+)被确定为藻类最佳生长所必需的。硝酸盐 NO3-形式的无机氮而不是铵 (NH4+) 被要求用于最大生物质生产。在氮饥饿生长条件下积累脂质，这是时间依赖性的。这项研究的结果可应用于在最佳设计的光生物反应器中最大限度地生产微藻脂质。
