This website uses cookies

The University of Liège wishes to use cookies or trackers to store and access your personal data, to perform audience measurement. Some cookies are necessary for the website to function. Cookie policy.

Article (Scientific journals)
Influence Of A New Axial Impeller On K(L)A And Xylanase Production By Penicillium Canescens 10-10c
Bakri, Yasser; Jacques, Philippe; Shi, Kui et al.
2002In Applied Biochemistry and Biotechnology, 98 (1-9), p. 1037-1048
Peer Reviewed verified by ORBi
 

Files


Full Text
bakri 2002 ABB.pdf
Publisher postprint (302.92 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Hydrolases; O-Glycosidases; Thallophyta; Fungi Imperfecti; Volumetric mass transfer coefficient; Oxygen transfer
Abstract :
[en] The effects of a new axial impeller (HTPG4) on oxygen volumetric transfer coefficient, KLa, and xylanase production by Penicillium canescens 10-10c were studied and compared for dual-impeller systems, one with one DT4 impeller below and one HTPG4 above (DT4-HTPG4) and one with two DT4 (DT4-DT4) impellers, in a 5-L bioreactor. The volumetric coefficient of oxygen transfer was measured in culture medium using a gassing-out method at different gassing rates and agitation speeds. We observed that the DT4-HTPG4 combination provided better KLa performance than the DT4-DT4 combination. The two combinations were also tested for their influence on xylanase production by a filamentous microorganism; P. canescens 10-10c. These experiments demonstrated that the DT4-HTPG4 combination impeller enhanced enzyme production up to 23% compared with the DT4-DT4 combination at an aeration rate of 1 vvm and an agitation speed of 600 rpm. The main cause for this difference is thought to be a higher shear stress generated by the DT4-DT4 combination, which damages the mycelium of P. canescens and decreases xylanase production.
Disciplines :
Biotechnology
Microbiology
Author, co-author :
Bakri, Yasser
Jacques, Philippe ;  Université de Liège - ULiège > Chimie et bio-industries > Bio-industries
Shi, Kui
Thonart, Philippe ;  Université de Liège - ULiège > Département des sciences de la vie > Biochimie et microbiologie industrielles - Gembloux Agro-Bio Tech
Language :
English
Title :
Influence Of A New Axial Impeller On K(L)A And Xylanase Production By Penicillium Canescens 10-10c
Publication date :
2002
Journal title :
Applied Biochemistry and Biotechnology
ISSN :
0273-2289
eISSN :
1559-0291
Publisher :
Humana Press, Totowa, United States - New Jersey
Volume :
98
Issue :
1-9
Pages :
1037-1048
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 10 May 2010

Statistics


Number of views
111 (5 by ULiège)
Number of downloads
5 (5 by ULiège)

Scopus citations®
 
7
Scopus citations®
without self-citations
3
OpenCitations
 
7
OpenAlex citations
 
7

Bibliography


Similar publications



Sorry the service is unavailable at the moment. Please try again later.
Contact ORBi