SIMULATION AND CONTROL OF ENZYMATIC HYDROLYSIS REACTOR OF SOLUBLE POTATO STARCH BY ASPERGILLUS NIGER GLUCOAMYLASE FOR FERMENTATION PROCESS FEED

SIMULATION AND CONTROL OF ENZYMATIC HYDROLYSIS REACTOR OF SOLUBLE POTATO STARCH BY ASPERGILLUS NIGER GLUCOAMYLASE FOR FERMENTATION PROCESS FEED

FONSECA, R. R.; DANTAS, T. S. S.; SILVA, F. V. da

Artigo:

An existing way to produce glucose uses enzymes to hydrolyzepolysaccharides. Aspergillusniger is recognized to produce glucoamylases capable to reduce starch to glucose molecules, used in fermentations processes as substrate. For continuous bioreactors operation mode, the substrate feed is required during bioprocess. Thus, enzymatic reactors able to continuously produce substrate feed are extremely necessary. Although, control strategies are demanded to regulate the variables of enzymatic process for adequate fermentation feed. For this reason, the paper analyses control strategies to regulate glucose concentration in the reactor outlet flow and reaction media volume, manipulating starch and enzymatic inlet solutions flows and reactors outlet flow. Control loop was designed analyzing processes variables responses to disturbances in the manipulated variables. Ratio control was implemented and the results demonstrate its superiority to SISOglucose concentration control.

An existing way to produce glucose uses enzymes to hydrolyzepolysaccharides. Aspergillusniger is recognized to produce glucoamylases capable to reduce starch to glucose molecules, used in fermentations processes as substrate. For continuous bioreactors operation mode, the substrate feed is required during bioprocess. Thus, enzymatic reactors able to continuously produce substrate feed are extremely necessary. Although, control strategies are demanded to regulate the variables of enzymatic process for adequate fermentation feed. For this reason, the paper analyses control strategies to regulate glucose concentration in the reactor outlet flow and reaction media volume, manipulating starch and enzymatic inlet solutions flows and reactors outlet flow. Control loop was designed analyzing processes variables responses to disturbances in the manipulated variables. Ratio control was implemented and the results demonstrate its superiority to SISOglucose concentration control.

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DOI: 10.5151/chemeng-cobeq2014-1429-19355-169472

Referências bibliográficas

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• [5] RIAZ, M., RASHID, M. H., SAWYER, L., AKHTAR, L., JAVED, M. R., NADEEM, H., WEAR, M., Physiochemical properties and kinetics of glucoamylase produced from deoxy-D-glucose resistant mutant of Aspergillusniger for soluble starch hydrolysis, Food Chem., v. 130, p. 24-30, 2012.
• [6] WANG, Q., WANG, X., WANG, X., MA, H., Glucoamylase production from food waste by Aspergillusniger under submerged fermentation, Proc.Biochem., v. 43, p. 280-286, 2008.

Como citar:

FONSECA, R. R.; DANTAS, T. S. S.; SILVA, F. V. da; "SIMULATION AND CONTROL OF ENZYMATIC HYDROLYSIS REACTOR OF SOLUBLE POTATO STARCH BY ASPERGILLUS NIGER GLUCOAMYLASE FOR FERMENTATION PROCESS FEED", p-12448-12455. In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 23591757, DOI 10.5151/chemeng-cobeq2014-1429-19355-169472