title: Aeration strategy for biofilm cultivation of the microalga Scenedesmus dimorphus.
abstract: OBJECTIVE
  Biofilm cultivation of microalgae may be useful for biofuel production. However, many aspects for this cultivation method have not been well assessed. Accordingly, aeration strategy for biofilm cultivation of Scenedesmus dimorphus has been explored.
  
  
  RESULTS
  Biomass, lipid and triacylglycerol (TAG) productivity in increased S. dimorphus as the CO2 concentration increased within 0.038-0.5% and kept constant with further increases. The biomass, lipid and TAG productivity increased with the speed increasing and an obvious threshold point was observed at 6.6 ml(-2) min(-1). The lipid and TAG content was unaffected by the aeration rate.
  
  
  CONCLUSIONS
  Both the CO2 concentration as well as aeration speed affected the growth of S. dimorphus in biofilm cultivation. The optimized aeration strategy for biofilm cultivation was continuous air flow enriched with 1% CO2 (v/v) at 6.6 ml(-2) min(-1).
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, Shandong, People's Republic of China. jicl@qibebt.ac.cn.|University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China. jicl@qibebt.ac.cn.
authors.forename: Chunli
authors.initials: C
authors.lastname: Ji
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, Shandong, People's Republic of China. wangjf@qibebt.ac.cn.
authors.forename: Junfeng
authors.initials: J
authors.lastname: Wang
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, Shandong, People's Republic of China. liutz@qibebt.ac.cn.
authors.forename: Tianzhong
authors.initials: T
authors.lastname: Liu
mesh_terms: D000332:Aerobiosis; D018441:Biofilms / Q000254:growth & development*; D002245:Carbon Dioxide / Q000378:metabolism; D050356:Lipid Metabolism; D044444:Scenedesmus / Q000254:growth & development / Q000378:metabolism / Q000502:physiology*
chemical_list: D002245:Carbon Dioxide
keywords: Aeration; Biofilm cultivation; Biofuel; CO2 supply; Scenedesmus dimorphus; TAG; Total lipid; Triacylglycerol