NDLI: Gluconic acid production from sucrose in an airlift reactor using a multi-enzyme system

Content Provider	Springer Nature Link
Author	Mafra, Agnes Cristina Oliveira Furlan, Felipe Fernando Badi, Alberto Colli Tardioli, Paulo Waldir
Copyright Year	2014
Abstract	Sucrose from sugarcane is produced in abundance in Brazil, which provides an opportunity to manufacture other high-value products. Gluconic acid (GA) can be produced by multi-enzyme conversion of sucrose using the enzymes invertase, glucose oxidase, and catalase. In this process, one of the byproducts is fructose, which has many commercial applications. This work concerns the batch mode production of GA in an airlift reactor fed with sucrose as substrate. Evaluation was made of the influence of temperature and pH, as well as the thermal stability of the enzymes. Operational conditions of 40 °C and pH 6.0 were selected, based on the enzymatic activity profiles and the thermal stabilities. Under these conditions, the experimental data could be accurately described by kinetic models. The maximum yield of GA was achieved within 3.8 h, with total conversion of sucrose and glucose and a volumetric productivity of around 7.0 g L−1 h−1.
Starting Page	671
Ending Page	680
Page Count	10
File Format	PDF
ISSN	16157591
Journal	Bioprocess Engineering
Volume Number	38
Issue Number	4
e-ISSN	16157605
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-10-19
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gluconic acid Fructose Sucrose Airlift bioreactors Batch processing Multi-enzyme bioconversion Biotechnology Industrial and Production Engineering Environmental Engineering/Biotechnology Industrial Chemistry/Chemical Engineering Food Science
Content Type	Text
Resource Type	Article
Subject	Medicine Bioengineering Biotechnology

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