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Seasonal variation of biomass and oil production of the oleaginous diatom Fistulifera sp. in outdoor vertical bubble column and raceway-type bioreactors

Paper ID Volume ID Publish Year Pages File Format Full-Text
20644 43184 2014 5 PDF Available
Title
Seasonal variation of biomass and oil production of the oleaginous diatom Fistulifera sp. in outdoor vertical bubble column and raceway-type bioreactors
Abstract

To evaluate the feasibility of industrial biodiesel production, outdoor mass cultivation of the marine oleaginous diatom, Fistulifera sp. strain JPCC DA0580, was conducted in bench-scale photobioreactors (∼200 L, raceway- and column-types) and seasonal variation of biomass and oil content were monitored. Through three seasons (from spring to autumn), the microalgae showed steady growth and oil accumulation in both reactors in spite of fluctuating temperature and solar irradiation. When comparing the both reactors, the column-type bioreactor was better with regard to energy conversion efficiency compared to the raceway-type bioreactor. The areal oil productivity of 3.23 g/m2/day is comparable or even higher level as compared with the one from other oleaginous microalgae prepared in outdoor mass cultivation. Furthermore, repeated batch culture experiments resulted in success at least 5 cycles. Through the experimental period, little bacterial contamination was observed while protozoal contamination was a fatal issue. The microalgal cell was robust enough to be handled by an automated pump system in inoculation and harvesting processes, and cell adhesion to the bioreactor wall was not observed. These beneficial features could realize ease of oil production and system maintenance. These findings ensure promising innovation by means of outdoor mass cultivation with this strain toward biodiesel production.

Keywords
Marine diatom; Fistulifera sp. strain JPCC DA0580; Biodiesel production; Outdoor mass cultivation; Repeated batch culture; Energy conversion efficiency
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Seasonal variation of biomass and oil production of the oleaginous diatom Fistulifera sp. in outdoor vertical bubble column and raceway-type bioreactors
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 117, Issue 6, June 2014, Pages 720–724
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us