Effects of aeration on growth and lipid productivity of Desmodesmus sp.CHX1

CHENG Hai-xiang, SHAO Yu, LI Jian-hui, XU Tian-you, TIAN Guang-ming

CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2014, Vol. 36 ›› Issue (6) : 807.

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CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2014, Vol. 36 ›› Issue (6) : 807. DOI: 10.7505/j.issn.1007-9084.2014.06.018

Effects of aeration on growth and lipid productivity of Desmodesmus sp.CHX1

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Abstract

To promote growth and lipid production of microalgae for biodiesel, aeration effect was studied on growth of a microalga Desmodesmus sp.CHX1 cultured in BG-11 medium. Results showed that aeration could dramatically increase the algal biomass, Chlorophyll (a+b) content and lipid productivity. After 7d cultivation with the aeration 160L/h, the maximum biomass of CHX1 cell, Chlorophyll (a+b) content and lipid productivity reached 7.26g/L, 60.5mg/L and 128.7mg/(L?d) respectively, which were significantly higher than those of control. Results suggested that aeration was favorable for the growth of microalgae and accumulation of valuable additional materials during the cultivation of Desmodesmus sp. CHX1, and was also for enhancement of cell growth and lipid production.

Key words

Aeration / Desmodesmus sp.CHX1 / Bioreactor / Growth / Lipid production

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CHENG Hai-xiang, SHAO Yu, LI Jian-hui, XU Tian-you, TIAN Guang-ming. Effects of aeration on growth and lipid productivity of Desmodesmus sp.CHX1[J]. CHINESE JOURNAL OF OIL CROP SCIENCES, 2014, 36(6): 807 https://doi.org/10.7505/j.issn.1007-9084.2014.06.018

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