Abstract：
:The effect of dissolved oxygen concentration on lipid accumulation in Trichosporon oleaginosus has been investigated. The experiment was performed in 15 L fermenters. The dissolved oxygen concentration varied by adjusting the agitation and aeration. High dissolved oxygen level at 50%-60% enhanced cell growth. Maintaining low dissolved oxygen concentration at 20%-30% during lipogenesis phase led to high final lipid content (51%) in Trichosporon oleaginosus. The consumptions of energy and cost of the process were evaluated. The energy consumption in the dissolved oxygen level optimized process was 41% less than that with dissolved oxygen level at 50%-60%. In addition, the cost was also reduced around one time in the dissolved oxygen level optimized process compared to the one with dissolved oxygen level at 50%-60%. The study provided a feasible way of enhancing lipid accumulation in Trichosporon oleaginosus and reducing the consumption of energy and cost of lipid production from Trichosporon oleaginosus.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Zhang X,Chen J,Wu D,Li J,Tyagi RD,Surampalli RYdoi
10.1016/j.biortech.2018.11.033subject
Has Abstractpub_date
2019-02-01 00:00:00pages
288-296eissn
0960-8524issn
1873-2976pii
S0960-8524(18)31560-8journal_volume
273pub_type
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