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Model for the influence of mass transport on enzymatic hydrolysis of polysaccharides
Author(s) -
Heitmann Torsten,
Wenzig Edda,
Mersmann Alfons
Publication year - 1997
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270200102
Subject(s) - chemistry , molar mass , hydrolysis , polysaccharide , enzyme , diffusion , enzymatic hydrolysis , exponent , kinetics , michaelis–menten kinetics , molecule , substrate (aquarium) , mass transfer , thermodynamics , mass transport , chromatography , organic chemistry , polymer , enzyme assay , biochemical engineering , physics , linguistics , philosophy , oceanography , engineering , quantum mechanics , geology
In this paper enzymatic hydrolysis reactions have been considered as integration‐limited reactions analogous to crystal growth. Based on the mathematical formulation of diffusion of polysaccharide substrate molecules to binding sites of the enzyme, integration kinetics were derived and compared to measured data. Significant is the measured and calculated decrease of the ratio of the specific activity and the Michaelis‐Menten parameter with increasing molar mass of the enzymes with an exponent more than unity.