| Literature DB >> 24727701 |
Ling Xia1, Junfeng Rong2, Haijian Yang1, Qiaoning He1, Delu Zhang3, Chunxiang Hu4.
Abstract
In order to evaluate the efficiency and potential of salt addition-based two-stage cultivation technology, on the basis of urea as nitrogen source, we compared four types of salts (NaCl, NaHCO3, NaS2O3 and NaAc) as inducers for lipid production in Desmodesmus abundans. The maximum biomass productivity (270.08mgL(-1)d(-1)) was obtained by using 0.25gL(-1) urea. The highest lipid productivity (67.08mgL(-1)d(-1)) and better biodiesel quality were realized by addition of 20gL(-1) NaCl, and the optimal time point for salt addition was determined at 1.79gL(-1) of biomass density. Further cost analysis demonstrated this cultivation process was relatively economical. Above results suggest that NaCl addition is an economical and applicable strategy for lipid enhancement and can be extended for microalgae-based biodiesel production.Entities:
Keywords: Cost feasibility; Desmodesmus abundans; Lipid induction; NaCl; Net energy ratio
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Year: 2014 PMID： 24727701 DOI： 10.1016/j.biortech.2014.03.063
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642