title: Potential of water surface-floating microalgae for biodiesel production: Floating-biomass and lipid productivities.
abstract: Microalgae have been accepted as a promising feedstock for biodiesel production owing to their capability of converting solar energy into lipids through photosynthesis. However, the high capital and operating costs, and high energy consumption, are hampering commercialization of microalgal biodiesel. In this study, the surface-floating microalga, strain AVFF007 (tentatively identified as Botryosphaerella sudetica), which naturally forms a biofilm on surfaces, was characterized for use in biodiesel production. The biofilm could be conveniently harvested from the surface of the water by adsorbing onto a polyethylene film. The lipid productivity of strain AVFF007 was 46.3 mg/L/day, allowing direct comparison to lipid productivities of other microalgal species. The moisture content of the surface-floating biomass was 86.0 ± 1.2%, which was much lower than that of the biomass harvested using centrifugation. These results reveal the potential of this surface-floating microalgal species as a biodiesel producer, employing a novel biomass harvesting and dewatering strategy.
authors: Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
authors: Masaki
authors: M
authors: Muto
authors: Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
authors: Daisuke
authors: D
authors: Nojima
authors: Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
authors: Liang
authors: L
authors: Yue
authors: Research and Technology Management Headquarters, FUJIFILM Co., Ltd, 577 Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa 258-8577, Japan.
authors: Hideyuki
authors: H
authors: Kanehara
authors: Research and Technology Management Headquarters, FUJIFILM Co., Ltd, 577 Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa 258-8577, Japan.
authors: Hideaki
authors: H
authors: Naruse
authors: Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
authors: Asuka
authors: A
authors: Ujiro
authors: Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
authors: Tomoko
authors: T
authors: Yoshino
authors: Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
authors: Tadashi
authors: T
authors: Matsunaga
authors: Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan. Electronic address: tsuyo@cc.tuat.ac.jp.
authors: Tsuyoshi
authors: T
authors: Tanaka
mesh_terms: D018441:Biofilms; D056804:Biofuels / Q000600:supply & distribution*; D018533:Biomass; D002498:Centrifugation; D008055:Lipids / Q000096:biosynthesis*; D058086:Microalgae / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism*; D014867:Water
chemical_list: D056804:Biofuels; D008055:Lipids; D014867:Water
keywords: Biodiesel; Dewatering; Floating; Harvesting; Microalgae