; Biotechnology & Applied Microbiology
; Energy & Fuels
NaCl is an effective inducer of lipid accumulation in freshwater microalgae, but little is known on whether the enhanced lipid components are desired. To address this issue, Monoraphidium dybowskii LB50 from a freshwater habitat was selected, cultivated, and subjected to NaCl induction at different scales outdoors. Results showed that the optimal salt concentration reduced glycolipid (GL) content, as well as enhanced neutral lipid (NL) and phospholipid (PL) contents. Moreover, GL was preferentially converted to NL at 20 g L-1 NaCl. Total lipid and NL contents respectively increased to 41.7% and 17.48% in 1 d. The highest NL productivity was also achieved at both the 5 L (24.13 mg L-1 d(-1)) and 140 L (13.05 mg L-1 d-1, 3.43 g m(-2) d(-1)) scales. These results suggest that NL accumulated effectively and rapidly at different scales, indicating that this strategy has broad application prospects for the scale-up cultivation of oily algae. (C) 2014 Elsevier Ltd. All rights reserved.
1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.SINOPEC Res Inst Petr Proc, Beijing 100083, Peoples R China
Yang, Haijian; He, Qiaoning; Rong, Junfeng; Xia, Ling; Hu, Chunxiang.Rapid neutral lipid accumulation of the alkali-resistant oleaginous Monoraphidium dybowskii LB50 by NaCl induction,BIORESOURCE TECHNOLOGY,2014,():