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Kinetics of cellulase production by Aspergillus terreus at various levels of dissolved oxygen tension in a stirred tank bioreactor

In this study the effect of different levels of dissolved oxygen tension (d.o.t) on the production of three main components of extracellular cellulases (FPase, CMCase and β-glucosidase) at a fixed agitation speed by Aspergillus terreus was investigated. Growth of A. terreus and cellulase production...

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Main Authors: Shahriarinour, Mahdi, Abdul Wahab, Mohd Noor, Ariff, Arbakariya, Mohamad, Rosfarizan, Mustafa, Shuhaimi
Format: Article
Language:English
Published: North Carolina State University 2011
Online Access:http://psasir.upm.edu.my/id/eprint/22326/1/Kinetics%20of%20cellulase%20production%20by%20Aspergillus%20terreus%20at%20various%20levels%20of%20dissolved%20oxygen%20tension%20in%20a%20stirred%20tank%20bioreactor.pdf
http://psasir.upm.edu.my/id/eprint/22326/
http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_06_4_4909_Shahriarinour_WAMM_Kinetics_Cellulase_Prod_Aspergillus
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spelling my.upm.eprints.223262016-03-15T00:54:49Z http://psasir.upm.edu.my/id/eprint/22326/ Kinetics of cellulase production by Aspergillus terreus at various levels of dissolved oxygen tension in a stirred tank bioreactor Shahriarinour, Mahdi Abdul Wahab, Mohd Noor Ariff, Arbakariya Mohamad, Rosfarizan Mustafa, Shuhaimi In this study the effect of different levels of dissolved oxygen tension (d.o.t) on the production of three main components of extracellular cellulases (FPase, CMCase and β-glucosidase) at a fixed agitation speed by Aspergillus terreus was investigated. Growth of A. terreus and cellulase production were modeled based on logistic and Luedeking-Piret equations. The results from the model fit well with the experimental data, confirming that the models were appropriate for describing and representing growth and cellulase production at various d.o.t levels. The models showed that the production of FPase and CMCase were growth-associated processes. Cell growth and cellulase production were approximately two-fold higher in a stirred tank bioreactor compared with a shake-flask culture. At a d.o.t of 55% air saturation, cell growth and cellulase production were higher than at low d.o.t (40% air saturation) or high d.o.t (80% air saturation). The highest activities of FPase (2.33 U ml-1), CMCase (51.10 U ml-1), and β-glucosidase (16.18 U ml-1) were obtained at a d.o.t of 55% air saturation, yielding overall productivities of 19.40, 425.00, and 67.40 U l.h-1, respectively. North Carolina State University 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/22326/1/Kinetics%20of%20cellulase%20production%20by%20Aspergillus%20terreus%20at%20various%20levels%20of%20dissolved%20oxygen%20tension%20in%20a%20stirred%20tank%20bioreactor.pdf Shahriarinour, Mahdi and Abdul Wahab, Mohd Noor and Ariff, Arbakariya and Mohamad, Rosfarizan and Mustafa, Shuhaimi (2011) Kinetics of cellulase production by Aspergillus terreus at various levels of dissolved oxygen tension in a stirred tank bioreactor. BioResources, 6 (4). pp. 4909-4921. ISSN 1930-2126 http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_06_4_4909_Shahriarinour_WAMM_Kinetics_Cellulase_Prod_Aspergillus
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description In this study the effect of different levels of dissolved oxygen tension (d.o.t) on the production of three main components of extracellular cellulases (FPase, CMCase and β-glucosidase) at a fixed agitation speed by Aspergillus terreus was investigated. Growth of A. terreus and cellulase production were modeled based on logistic and Luedeking-Piret equations. The results from the model fit well with the experimental data, confirming that the models were appropriate for describing and representing growth and cellulase production at various d.o.t levels. The models showed that the production of FPase and CMCase were growth-associated processes. Cell growth and cellulase production were approximately two-fold higher in a stirred tank bioreactor compared with a shake-flask culture. At a d.o.t of 55% air saturation, cell growth and cellulase production were higher than at low d.o.t (40% air saturation) or high d.o.t (80% air saturation). The highest activities of FPase (2.33 U ml-1), CMCase (51.10 U ml-1), and β-glucosidase (16.18 U ml-1) were obtained at a d.o.t of 55% air saturation, yielding overall productivities of 19.40, 425.00, and 67.40 U l.h-1, respectively.
format Article
author Shahriarinour, Mahdi
Abdul Wahab, Mohd Noor
Ariff, Arbakariya
Mohamad, Rosfarizan
Mustafa, Shuhaimi
spellingShingle Shahriarinour, Mahdi
Abdul Wahab, Mohd Noor
Ariff, Arbakariya
Mohamad, Rosfarizan
Mustafa, Shuhaimi
Kinetics of cellulase production by Aspergillus terreus at various levels of dissolved oxygen tension in a stirred tank bioreactor
author_facet Shahriarinour, Mahdi
Abdul Wahab, Mohd Noor
Ariff, Arbakariya
Mohamad, Rosfarizan
Mustafa, Shuhaimi
author_sort Shahriarinour, Mahdi
title Kinetics of cellulase production by Aspergillus terreus at various levels of dissolved oxygen tension in a stirred tank bioreactor
title_short Kinetics of cellulase production by Aspergillus terreus at various levels of dissolved oxygen tension in a stirred tank bioreactor
title_full Kinetics of cellulase production by Aspergillus terreus at various levels of dissolved oxygen tension in a stirred tank bioreactor
title_fullStr Kinetics of cellulase production by Aspergillus terreus at various levels of dissolved oxygen tension in a stirred tank bioreactor
title_full_unstemmed Kinetics of cellulase production by Aspergillus terreus at various levels of dissolved oxygen tension in a stirred tank bioreactor
title_sort kinetics of cellulase production by aspergillus terreus at various levels of dissolved oxygen tension in a stirred tank bioreactor
publisher North Carolina State University
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/22326/1/Kinetics%20of%20cellulase%20production%20by%20Aspergillus%20terreus%20at%20various%20levels%20of%20dissolved%20oxygen%20tension%20in%20a%20stirred%20tank%20bioreactor.pdf
http://psasir.upm.edu.my/id/eprint/22326/
http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_06_4_4909_Shahriarinour_WAMM_Kinetics_Cellulase_Prod_Aspergillus
_version_ 1643827795148668928
score 13.211869

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