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Comparison of several mathematical models for describing the joint effect of temperature and ph on glucanex activity

AuthorsPrieto, Miguel Ángel ; Vázquez, José Antonio ; Murado García, Miguel Anxo
Enzymatic activity
Mathematical modeling
Ph and temperature effects
Issue Date2012
PublisherAmerican Institute of Chemical Engineers
CitationBiotechnology Progress 28(2): 372-381 (2012)
AbstractThe aim of the present work was to evaluate with different statistical criteria the suitability of nine equations for describing and optimizing the simultaneous effect of temperature and pH on glucanex activity using two characteristic polysaccharides (curdlan and laminarin) as substrates. The most satisfactory solutions were found with an empirical equation constituted with parameters of practical interest (Rosso model), and a hybrid model between the Arrhenius equation and the mathematical expression generated by the protonation-hydroxylation mechanism (Tijskens model). The joint optimal values of pH and temperature calculated with the Rosso model were obtained at 4.64 and 50°C with curdlan and 4.64 and 48°C using laminarin as substrate
Description10 páginas, 5 figuras, 3 tablas
Publisher version (URL)http://dx.doi.org/10.1002/btpr.733
Appears in Collections:(IIM) Artículos
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