The Nondimensionalization of Equations Describing Enzymatic Cellulose Hydrolysis

The enzymatic hydrolysis is a very crucial stage in transforming lignocellulosic biomass to bioethanol. At the hydrolysis stage, two types of enzymes, which are EG and CBH , break the cellulose chains 1 1 into sugar in the form of cellobiose or glucose. This paper explores the current kinetic model...

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Main Authors: Norazaliza, Mohd Jamil, Qi, Wang
Format: Article
Language:English
Published: IDOSI Publication 2016
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/12992/
http://umpir.ump.edu.my/id/eprint/12992/1/The%20Nondimensionalization%20of%20Equations%20Describing%20Enzymatic%20Cellulose%20Hydrolysis.pdf
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author Norazaliza, Mohd Jamil
Qi, Wang
author_facet Norazaliza, Mohd Jamil
Qi, Wang
author_sort Norazaliza, Mohd Jamil
building UMP Institutional Repository
collection Online Access
description The enzymatic hydrolysis is a very crucial stage in transforming lignocellulosic biomass to bioethanol. At the hydrolysis stage, two types of enzymes, which are EG and CBH , break the cellulose chains 1 1 into sugar in the form of cellobiose or glucose. This paper explores the current kinetic model for enzymatic hydrolysis. The complexity of the model due to integro-differential equations makes finding the analytical solution difficult. Therefore, we divide the full model into two limiting cases and perform mathematical analysis for both cases. Through the use of nondimensional numbers, the governing equations of the kinetic model are summarized. Then, the approximate solutions were derived by utilizing the asymptotic analysis method. Some significant characteristics are captured. It is shown that the number of cellulose chains in both models increases over time due to the effect of enzymes in breaking the cellulose chains into smaller chains. Also, the rate coefficient for CBH to locate and thread a reducing end of a cellulose chain is a key factor in bioconversion.
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spelling ump-129922016-05-03T04:08:28Z http://umpir.ump.edu.my/id/eprint/12992/ The Nondimensionalization of Equations Describing Enzymatic Cellulose Hydrolysis Norazaliza, Mohd Jamil Qi, Wang Q Science (General) The enzymatic hydrolysis is a very crucial stage in transforming lignocellulosic biomass to bioethanol. At the hydrolysis stage, two types of enzymes, which are EG and CBH , break the cellulose chains 1 1 into sugar in the form of cellobiose or glucose. This paper explores the current kinetic model for enzymatic hydrolysis. The complexity of the model due to integro-differential equations makes finding the analytical solution difficult. Therefore, we divide the full model into two limiting cases and perform mathematical analysis for both cases. Through the use of nondimensional numbers, the governing equations of the kinetic model are summarized. Then, the approximate solutions were derived by utilizing the asymptotic analysis method. Some significant characteristics are captured. It is shown that the number of cellulose chains in both models increases over time due to the effect of enzymes in breaking the cellulose chains into smaller chains. Also, the rate coefficient for CBH to locate and thread a reducing end of a cellulose chain is a key factor in bioconversion. IDOSI Publication 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12992/1/The%20Nondimensionalization%20of%20Equations%20Describing%20Enzymatic%20Cellulose%20Hydrolysis.pdf Norazaliza, Mohd Jamil and Qi, Wang (2016) The Nondimensionalization of Equations Describing Enzymatic Cellulose Hydrolysis. World Applied Sciences Journal, 34 (2). pp. 158-163. ISSN 1818-4952. (Published) http://idosi.org/wasj/wasj34(2)16/3.pdf DOI: 10.5829/idosi.wasj.2016.34.2.346
spellingShingle Q Science (General)
Norazaliza, Mohd Jamil
Qi, Wang
The Nondimensionalization of Equations Describing Enzymatic Cellulose Hydrolysis
title The Nondimensionalization of Equations Describing Enzymatic Cellulose Hydrolysis
title_full The Nondimensionalization of Equations Describing Enzymatic Cellulose Hydrolysis
title_fullStr The Nondimensionalization of Equations Describing Enzymatic Cellulose Hydrolysis
title_full_unstemmed The Nondimensionalization of Equations Describing Enzymatic Cellulose Hydrolysis
title_short The Nondimensionalization of Equations Describing Enzymatic Cellulose Hydrolysis
title_sort nondimensionalization of equations describing enzymatic cellulose hydrolysis
topic Q Science (General)
url http://umpir.ump.edu.my/id/eprint/12992/
http://umpir.ump.edu.my/id/eprint/12992/
http://umpir.ump.edu.my/id/eprint/12992/
http://umpir.ump.edu.my/id/eprint/12992/1/The%20Nondimensionalization%20of%20Equations%20Describing%20Enzymatic%20Cellulose%20Hydrolysis.pdf