Selecting an indigenous microalgal strain for lipid production in anaerobically treated piggery wastewater

Bioresource Technology
Jatta M MarjakangasJo-Shu Chang

Abstract

The aim of this study was to select a potential microalgal strain for lipid production and to examine the suitability of anaerobically treated piggery wastewater as a nutrient source for production of lipid-rich biomass with the selected microalga. Biomass and lipid productivity of three microalgal strains (Chlorella sorokiniana CY1, Chlorella vulgaris CY5 and Chlamydomonas sp. JSC-04) were compared by using different media, nitrogen sources, and nitrogen concentrations. The highest lipid content and productivity (62.5 wt%, 162 mg/L/d) were obtained with C. vulgaris with BG-11 with 62 mg N/L. Secondly, C. vulgaris was cultivated in sterilized, diluted (1-20×), anaerobically treated piggery wastewater. Biomass production decreased and lipid content increased, when wastewater was more diluted. The highest lipid content of 54.7 wt% was obtained with 20× dilution, while the highest lipid productivity of 100.7 mg/L/d with 5× dilution. Piggery wastewater is a promising resource for mass production of oleaginous microalgal biomass.

References

Nov 13, 2007·Bioresource Technology·Zhi-Yuan LiuBai-Cheng Zhou
Apr 14, 2009·Bioresource Technology·Chih-Hung Hsieh, Wen-Teng Wu
Jun 16, 2010·Bioresource Technology·Sing-Lai LimSiew-Moi Phang
May 10, 2012·Applied Microbiology and Biotechnology·Min-Kyu JiByong-Hun Jeon

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Citations

May 23, 2019·Environmental Science and Pollution Research International·Zhi QuMing Li
Oct 19, 2016·Biotechnology and Applied Biochemistry·Tanvi TapariaSandhya Mehrotra

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