The Effects of Physicochemical Factors and Cell Density on Nitrite Transformation in a Lipid-Rich Chlorella
文献类型：期刊论文
| 作者 | Liang, Fang1,2; Du, Kui2,3; Wen, Xiaobin2; Luo, Liming2; Geng, Yahong2; Li, Yeguang2 |
| 刊名 | JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 25期号:12页码:2116-2124 |
| 关键词 | Chlorella NOX nitrite transformation flue gas |
| ISSN号 | 1017-7825 |
| DOI | 10.4014/jmb.1505.05102 |
| 英文摘要 | To understand the effects of physicochemical factors on nitrite transformation by microalgae, a lipid-rich Chlorella with high nitrite tolerance was cultured with 8 mmol/l sodium nitrite as sole nitrogen source under different conditions. The results showed that nitrite transformation was mainly dependent on the metabolic activities of algal cells rather than oxidation of nitrite by dissolved oxygen. Light intensity, temperature, pH, NaHCO3 concentrations, and initial cell densities had significant effects on the rate of nitrite transformation. Single-factor experiments revealed that the optimum conditions for nitrite transformation were light intensity: 300 mu mol/m(2)/s; temperature: 30 degrees C; pH: 7-8; NaHCO3 concentration: 2.0 g/l; and initial cell density: 0.15 g/l; and the highest nitrite transformation rate of 1.36 mmol/l/d was achieved. There was a positive correlation between nitrite transformation rate and the growth of Chlorella. The relationship between nitrite transformation rate (mg/l/d) and biomass productivity (g/l/d) could be described by the regression equation y = 61.3x (R-2 = 0.9665), meaning that 61.3 mg N element was assimilated by 1.0 g dry biomass on average, which indicated that the nitrite transformation is a process of consuming nitrite as nitrogen source by Chlorella. The results demonstrated that the Chlorella suspension was able to assimilate nitrite efficiently, which implied the feasibility of using flue gas for mass production of Chlorella without preliminary removal of NOX. |
| 资助项目 | National Natural Foundation of China[CNSF31272680] ; Ministry of Science and Technology of China[2012FY112900] ; Ministry of Science and Technology of China[2013AA065805] |
| WOS研究方向 | Biotechnology & Applied Microbiology ; Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:000368425500019 |
| 出版者 | KOREAN SOC MICROBIOLOGY & BIOTECHNOLOGY |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/165]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Li, Yeguang |
| 作者单位 | 1.Zhengzhou Normal Univ, Inst Bioengn, Zhengzhou 450044, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan 430074, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Fang,Du, Kui,Wen, Xiaobin,et al. The Effects of Physicochemical Factors and Cell Density on Nitrite Transformation in a Lipid-Rich Chlorella[J]. JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY,2015,25(12):2116-2124. |
| APA | Liang, Fang,Du, Kui,Wen, Xiaobin,Luo, Liming,Geng, Yahong,&Li, Yeguang.(2015).The Effects of Physicochemical Factors and Cell Density on Nitrite Transformation in a Lipid-Rich Chlorella.JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY,25(12),2116-2124. |
| MLA | Liang, Fang,et al."The Effects of Physicochemical Factors and Cell Density on Nitrite Transformation in a Lipid-Rich Chlorella".JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY 25.12(2015):2116-2124. |
入库方式： OAI收割
来源：武汉植物园
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。