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Interleukin-1β production by Zygosaccharomyces bailii [pZ3 KlIL-1β] in aerated fed-batch reactor: Importance of inoculum physiology and bioprocess modelling

Paper ID Volume ID Publish Year Pages File Format Full-Text
35436 45090 2009 7 PDF Available
Title
Interleukin-1β production by Zygosaccharomyces bailii [pZ3 KlIL-1β] in aerated fed-batch reactor: Importance of inoculum physiology and bioprocess modelling
Abstract

A cultural system, aimed at the production of human interleukin-1β (IL-1β) with cells of a non-conventional yeast transformed for interleukin expression, Zygosaccharomyces bailii [pZ3KlIL-1β], was realized. Interleukin production was accomplished in a reactor operating in fed-batch mode to avoid sugar overflow metabolism, limitations with respect to oxygen transfer, and achieve high cell density. Batch operation mode was employed only to characterise the producer strain and experimentally estimate kinetic parameters. In parallel with strain characterisation, a mathematical model was developed. The comparison between simulations and experimental data allowed to evidence the importance of physiological state of inoculum, being only a fermentative one suitable to sustain a given exponential growth. The respiratory capacity of Z. bailii [pZ3KlIL-1β], resulted to be affected by stirring. The theoretical and experimental approach allowed the bioprocess optimisation.

Keywords
Yeast; Zygosaccharomyces bailii; Interleukin; Heterologous protein production; Fed-batch; Mathematical model
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Interleukin-1β production by Zygosaccharomyces bailii [pZ3 KlIL-1β] in aerated fed-batch reactor: Importance of inoculum physiology and bioprocess modelling
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 44, Issue 5, May 2009, Pages 527–533
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
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