Bulletin of Chemical Reaction Engineering & Catalysis
2019: BCREC Volume 14 Issue 3 Year 2019 (December 2019)

Inhibition Effect of Ca2+ Ions on Sucrose Hydrolysis Using Invertase

Hargono Hargono (Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang, 50275)
Bakti Jos (Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang, 50275)
Abdullah Abdullah (Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang, 50275)
Teguh Riyanto (Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang, 50275)



Article Info

Publish Date
01 Dec 2019

Abstract

Fermentable sugar for bioethanol production can be produced from molasses due to its high sucrose content but Ca2+ ions found in the molasses may affect the hydrolysis. Therefore, this paper was focused to study the effect of Ca2+ ions as CaO on sucrose hydrolysis using invertase and to obtain the kinetic parameters. The kinetic parameters (KM and Vmax) were obtained using a Lineweaver-Burk plot. The value of KM and Vmax parameters were 36.181 g/L and 21.322 g/L.h, respectively. The Ca2+ ions act as competitive inhibitor in sucrose hydrolysis using invertase. Therefore, the inhibition mechanism was followed the competitive inhibition mechanism. The value of inhibition constant was 0.833 g/g. These parameters were obtained from the non-substrate inhibition process because this study used the low substrate concentrations which means the fermentable sugar production was low. Hence, there were still more challenges to studying the simultaneous effect of substrate and Ca2+ on sucrose hydrolysis to produce high fermentable sugar. 

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Journal Info

Abbrev

bcrec

Publisher

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry

Description

Bulletin of Chemical Reaction Engineering & Catalysis, a reputable international journal, provides a forum for publishing the novel technologies related to the catalyst, catalysis, chemical reactor, kinetics, and chemical reaction engineering. Scientific articles dealing with the following topics in ...