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Repeated fed-batch cultivation of Arthrospira (Spirulina) platensis using urea as nitrogen source

Paper ID Volume ID Publish Year Pages File Format Full-Text
4314 220 2009 6 PDF Available
Title
Repeated fed-batch cultivation of Arthrospira (Spirulina) platensis using urea as nitrogen source
Abstract

Arthrospira (Spirulina) platensis (Nordstedt) Gomont was autotrophically cultivated for biomass production in repeated fed-batch process using urea as nitrogen source, with the aim of making large-scale production easier, increasing cell productivity and then reducing the production costs. It was investigated the influence of the ratio of renewed volume to total volume (R), the urea feeding time (tf) and the number of successive repeated fed-batch cycles on the maximum cell concentration (Xm), cell productivity (Px), nitrogen-to-cell conversion yield (Yx/n), maximum specific growth rate (μm) and protein content of dry biomass. The experimental results demonstrated that R = 0.80 and tf = 6 d were the best cultivation conditions, being able to simultaneously ensure, throughout the three fed-batch cycles, the highest average values of three of the five responses (Xm = 2101 ± 113 mg L−1, Px = 219 ± 13 mg L−1 d−1 and Yx/n = 10.3 ± 0.8 g g−1).

Keywords
Arthrospira (Spirulina) platensis; Repeated fed-batch cultivation; Urea; Nitrogen source
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 43, Issue 1, 15 January 2009, Pages 52–57
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