State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, No. 5 Xinmofan Road, Nanjing 210009, People's Republic of China.
Bioresour Technol. 2012 Dec;126:24-30. doi: 10.1016/j.biortech.2012.09.048. Epub 2012 Sep 25.
The hydrolysates from lipid-extracted microalgal biomass residues (LMBRs) were used as a source of nutrients for the cultivation of Chlorella vulgaris for lipid production under various CO(2) supply conditions, including different CO(2) concentrations and aeration rates. Both parameters had a significant effect on lipid production. A CO(2) concentration of 5% was found to be most suitable for microalgal growth. Microalga grew best at a CO(2) aeration rate of 0.5 vvm. At this rate, biomass concentration and lipid productivity were at a maximum of 3.83 g L(-1) and 157 mg L(-1)d(-1), respectively, but decreased at lower or higher aeration rates. The present results showed that LMBRs utilization was effective in microalgal lipid production under suitable CO(2) supply conditions.
从脂质提取微藻生物质残渣（LMBRs）的水解产物被用作培养小球藻生产脂质的营养源，在不同的 CO（2）供应条件下，包括不同的 CO（2）浓度和通气率。这两个参数对脂质生产都有显著的影响。发现 5%的 CO（2）浓度最适合微藻生长。微藻在 CO（2）通气率为 0.5 vvm 时生长最好。在这个速率下，生物质浓度和脂质生产力分别达到最大值，为 3.83 g L（-1）和 157 mg L（-1）d（-1），但在较低或较高的通气率下会降低。本研究结果表明，在合适的 CO（2）供应条件下，LMBRs 的利用可有效提高微藻的脂质产量。
