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Effect of nanoparticle on cellular growth and lipid production in Chlorella vulgaris culture
Author(s) -
Ahn Bohye,
Park So Eun,
Oh ByungKeun,
Kim YoungKee
Publication year - 2018
Publication title -
biotechnology progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.572
H-Index - 129
eISSN - 1520-6033
pISSN - 8756-7938
DOI - 10.1002/btpr.2641
Subject(s) - chlorella vulgaris , chemistry , mass transfer , nanoparticle , food science , nuclear chemistry , chromatography , botany , algae , biology , materials science , nanotechnology
Magnetic cobalt ferrite/silica nanoparticles (MSNs) and methyl functionalized MSNs (methyl‐MSNs) were used to enhance lipid production in Chlorella vulgaris culture through enhancement of gas‐water mass transfer and increased dissolved concentration of CO 2 . Methyl‐MSNs enhanced CO 2 –water mass transfer rate better than MSNs, and 0.3 wt% methyl‐MSNs are more effective than 0.1 wt% MSNs. In the cultivation experiment, 0.3 wt% methyl‐MSNs yielded the highest dry cell weight and subsequently, the highest mass transfer rate. However, enhancement of mass transfer rate did not increase lipid content. The volumetric lipid productivity in C. vulgaris culture depends not only on intracellular lipid content but also on the cell mass concentration. Consequently, 0.1 wt% methyl‐MSNs yielded the highest volumetric lipid productivity in C. vulgaris cultivation. © 2018 American Institute of Chemical Engineers Biotechnol. Prog. , 34:929–933, 2018