Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7078161 | Bioresource Technology | 2014 | 8 Pages |
Abstract
To evaluate the potential of Chlorococcum pamirum for producing biodiesel, the effects of nitrogen, phosphate, initial cell concentrations and NaCl on lipid accumulation and growth were studied. The highest specific growth rate (μmax), biomass productivity and lipid content achieved was 1.888 dâ1, 350.1 mg Lâ1 dayâ1, and 64.9%, respectively. Under nitrogen-deficient condition, the cells accumulated lipids faster at low initial cell concentration. Additional NaCl to nitrogen-deficient media accelerated the lipid accumulation. When adding 10 g Lâ1 NaCl to nitrogen-deficient media, the lipid content and productivity of cells cultured outdoors with high initial cell concentration increased from 38.2% and 153 mg Lâ1 dayâ1 to 54.3% and 192 mg Lâ1 dayâ1 respectively. Moreover, NaCl enhanced the saturated fatty acids content from 56.40% to 73.41% of total fatty acids. The results show that C. pamirum is a promising organism for biofuel production.
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Authors
Pingzhong Feng, Zhongyang Deng, Zhengyu Hu, Zhongming Wang, Lu Fan,