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  • Enhancement of Lipid Production of Scenedesmus obliquus Cultivated in Municipal Wastewater by Plant Growth Regulator Treatment

    Author(s)
    Han, Song-Fang
    Jin, Wenbiao
    Abomohra, Abd El-Fatah
    Zhou, Xu
    Tu, Renjie
    Chen, Chuan
    Chen, Hongyi
    Gao, Shu-hong
    Wang, Qilin
    Griffith University Author(s)
    Wang, Qilin
    Year published
    2019
    Metadata
    Show full item record
    Abstract
    Effects of four different plant growth regulators including indole-3-acetic acid (IAA), 1-triacontanol (TRIA), 2,4-dichlorophenoxyacetic acid (2,4-D) and 6-benzylaminopurine (6-BA) on biomass and lipid productivity of microalga Scenedesmus obliquus cultured in municipal wastewater were primarily studied. The results showed that the lipid productivity of S. obliquus was significantly increased by 30.5 and 23.6% after the treatment by IAA and TRIA, respectively. According to the GC analysis of the lipids, the addition of IAA and TRIA could increase the content of monounsaturated fatty acid in S. obliquus, and thus improving ...
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    Effects of four different plant growth regulators including indole-3-acetic acid (IAA), 1-triacontanol (TRIA), 2,4-dichlorophenoxyacetic acid (2,4-D) and 6-benzylaminopurine (6-BA) on biomass and lipid productivity of microalga Scenedesmus obliquus cultured in municipal wastewater were primarily studied. The results showed that the lipid productivity of S. obliquus was significantly increased by 30.5 and 23.6% after the treatment by IAA and TRIA, respectively. According to the GC analysis of the lipids, the addition of IAA and TRIA could increase the content of monounsaturated fatty acid in S. obliquus, and thus improving the grade of biodiesel. After the addition of IAA and TRIA, the nitrogen content of S. obliquus significantly decreased, while bacterial diversity in wastewater increased, which could enhance the stability of microbial system in the wastewater medium. Meanwhile, significant increase were also found in the abundances of β-Proteobacteria and α-Proteobacteria.
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    Journal Title
    Waste and Biomass Valorization
    DOI
    https://doi.org/10.1007/s12649-018-0314-x
    Note
    This publication has been entered into Griffith Research Online as an Advanced Online Version.
    Subject
    Other chemical sciences
    Chemical engineering
    Environmental engineering
    Environmentally sustainable engineering
    Global and planetary environmental engineering
    Publication URI
    http://hdl.handle.net/10072/375277
    Collection
    • Journal articles

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