Modeling small-scale cassava starch extraction. Simulation of the reduction of water consumption through a recycling process

Da Guillaume, Ferret Eric, Maréchal Pierre-André, Le Thanh Mai, Marouzé Claude, Dufour Dominique. 2010. Modeling small-scale cassava starch extraction. Simulation of the reduction of water consumption through a recycling process. Process Biochemistry (1991), 45 (11) : 1837-1842.

Quartile : Q1, Sujet : ENGINEERING, CHEMICAL / Quartile : Q2, Sujet : BIOTECHNOLOGY & APPLIED MICROBIOLOGY / Quartile : Q3, Sujet : BIOCHEMISTRY & MOLECULAR BIOLOGY

Résumé : The purpose of this study was to model the extraction unit operation of the cassava starch manufacturing process and to propose a realistic recycling simulation in order to reduce the volumes of effluents. The model was developed from reactors which are commonly used for cassava starch extraction at a household scale in Vietnam. The reactors were tested using inflow starch as a marker at the beginning of the batch process. The experimental residence time distribution (RTDexp) was calculated by the outflow of the starch concentration. Using Matlab®, the RTDexp was compared to the theoretical residence time distribution (RTDth). The dynamic model obtained was built up on Simulink® and tested with four different strategies of recycling methods. Sedimented starch was collected from the different types of processes; the pH value and the titratable acidity of starch were then measured. The results showed a good correlation between RTDexp and RTDth. The reactors were described by a model of two mixed tanks in series. The simulation of the recycling process revealed a reduction in quantity of water used up to 43%; however, the recycling process increased significantly the titratable acidity of starch up to 6.48±0.11 mequiv. H+/100 g dry matter.

Mots-clés Agrovoc : Manihot esculenta

Mots-clés géographiques Agrovoc : Viet Nam

Classification Agris : Q02 - Traitement et conservation des produits alimentaires

Champ stratégique Cirad : Axe 3 (2005-2013) - Alimentation accessible et de qualité

Auteurs et affiliations

• Da Guillaume, Université de Bourgogne (FRA)
• Ferret Eric, Université de Bourgogne (FRA)
• Maréchal Pierre-André, Université de Bourgogne (FRA)
• Le Thanh Mai, Hanoi University of Technology (VNM)
• Marouzé Claude
• Dufour Dominique, CIRAD-PERSYST-UMR Qualisud (COL) ORCID: 0000-0002-7794-8671

Source : Cirad - Agritrop (https://agritrop.cirad.fr/558413/)

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