Denaturation Kinetics of Whey Protein Isolate Solutions and Fouling Mass Distribution in a Plate Heat Exchanger
Few investigations have attempted to connect the mechanism of dairy fouling to the chemical reaction of denaturation (unfolding and aggregation) occurring in the bulk. The objective of this study is to contribute to this aspect in order to propose innovative controls to limit fouling deposit formati...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Chemical Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/139638 |
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| author | Marwa Khaldi Gilles Ronse Christophe André Pascal Blanpain-Avet Laurent Bouvier Thierry Six Saloua Bornaz Thomas Croguennec Romain Jeantet Guillaume Delaplace |
| author_facet | Marwa Khaldi Gilles Ronse Christophe André Pascal Blanpain-Avet Laurent Bouvier Thierry Six Saloua Bornaz Thomas Croguennec Romain Jeantet Guillaume Delaplace |
| author_sort | Marwa Khaldi |
| collection | DOAJ |
| description | Few investigations have attempted to connect the mechanism of dairy fouling to the chemical reaction of denaturation (unfolding and aggregation) occurring in the bulk. The objective of this study is to contribute to this aspect in order to propose innovative controls to limit fouling deposit formation. Experimental investigations have been carried out to observe the relationship between the deposit mass distribution generated in plate heat exchangers (PHE) by a whey protein isolate (WPI) mainly composed of β-lactoglobulin (β-Lg) and the ratio between the unfolding and aggregation rate constants. Experiments using a PHE were carried out at a pilot scale to identify the deposit distribution of a model fouling solution with different calcium contents. In parallel, laboratory experiments were performed to determine the unfolding/aggregation rate constants. Data analysis showed that (i) β-Lg denaturation is highly dependent on the calcium content, (ii) for each fouling solution, irrespective of the imposed temperature profile, the deposit mass in each channel and the ratio between the unfolding and aggregation rate constants seem to be well correlated. This study demonstrates that both the knowledge of the thermal profile and the β-Lg denaturation rate constants are required in order to predict accurately the deposit distribution along the PHE. |
| format | Article |
| id | doaj-art-2e0b211631d94379905637176a7b87f0 |
| institution | Kabale University |
| issn | 1687-806X 1687-8078 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Chemical Engineering |
| spelling | doaj-art-2e0b211631d94379905637176a7b87f02025-02-03T05:44:36ZengWileyInternational Journal of Chemical Engineering1687-806X1687-80782015-01-01201510.1155/2015/139638139638Denaturation Kinetics of Whey Protein Isolate Solutions and Fouling Mass Distribution in a Plate Heat ExchangerMarwa Khaldi0Gilles Ronse1Christophe André2Pascal Blanpain-Avet3Laurent Bouvier4Thierry Six5Saloua Bornaz6Thomas Croguennec7Romain Jeantet8Guillaume Delaplace9INRA, UR638, Processus aux Interfaces et Hygiène des Matériaux (PIHM), BP 20039, 369 rue Jules Guesde, 59651 Villeneuve d’Ascq, FranceINRA, UR638, Processus aux Interfaces et Hygiène des Matériaux (PIHM), BP 20039, 369 rue Jules Guesde, 59651 Villeneuve d’Ascq, FranceINRA, UR638, Processus aux Interfaces et Hygiène des Matériaux (PIHM), BP 20039, 369 rue Jules Guesde, 59651 Villeneuve d’Ascq, FranceINRA, UR638, Processus aux Interfaces et Hygiène des Matériaux (PIHM), BP 20039, 369 rue Jules Guesde, 59651 Villeneuve d’Ascq, FranceINRA, UR638, Processus aux Interfaces et Hygiène des Matériaux (PIHM), BP 20039, 369 rue Jules Guesde, 59651 Villeneuve d’Ascq, FranceINRA, UR638, Processus aux Interfaces et Hygiène des Matériaux (PIHM), BP 20039, 369 rue Jules Guesde, 59651 Villeneuve d’Ascq, FranceEcole Supérieure des Industries Alimentaires de Tunis, 58 avenue Alain Savary, 1003 Tunis El Khadra, TunisiaINRA, AGROCAMPUS OUEST, UMR 1253, 35042 Rennes, FranceINRA, AGROCAMPUS OUEST, UMR 1253, 35042 Rennes, FranceINRA, UR638, Processus aux Interfaces et Hygiène des Matériaux (PIHM), BP 20039, 369 rue Jules Guesde, 59651 Villeneuve d’Ascq, FranceFew investigations have attempted to connect the mechanism of dairy fouling to the chemical reaction of denaturation (unfolding and aggregation) occurring in the bulk. The objective of this study is to contribute to this aspect in order to propose innovative controls to limit fouling deposit formation. Experimental investigations have been carried out to observe the relationship between the deposit mass distribution generated in plate heat exchangers (PHE) by a whey protein isolate (WPI) mainly composed of β-lactoglobulin (β-Lg) and the ratio between the unfolding and aggregation rate constants. Experiments using a PHE were carried out at a pilot scale to identify the deposit distribution of a model fouling solution with different calcium contents. In parallel, laboratory experiments were performed to determine the unfolding/aggregation rate constants. Data analysis showed that (i) β-Lg denaturation is highly dependent on the calcium content, (ii) for each fouling solution, irrespective of the imposed temperature profile, the deposit mass in each channel and the ratio between the unfolding and aggregation rate constants seem to be well correlated. This study demonstrates that both the knowledge of the thermal profile and the β-Lg denaturation rate constants are required in order to predict accurately the deposit distribution along the PHE.http://dx.doi.org/10.1155/2015/139638 |
| spellingShingle | Marwa Khaldi Gilles Ronse Christophe André Pascal Blanpain-Avet Laurent Bouvier Thierry Six Saloua Bornaz Thomas Croguennec Romain Jeantet Guillaume Delaplace Denaturation Kinetics of Whey Protein Isolate Solutions and Fouling Mass Distribution in a Plate Heat Exchanger International Journal of Chemical Engineering |
| title | Denaturation Kinetics of Whey Protein Isolate Solutions and Fouling Mass Distribution in a Plate Heat Exchanger |
| title_full | Denaturation Kinetics of Whey Protein Isolate Solutions and Fouling Mass Distribution in a Plate Heat Exchanger |
| title_fullStr | Denaturation Kinetics of Whey Protein Isolate Solutions and Fouling Mass Distribution in a Plate Heat Exchanger |
| title_full_unstemmed | Denaturation Kinetics of Whey Protein Isolate Solutions and Fouling Mass Distribution in a Plate Heat Exchanger |
| title_short | Denaturation Kinetics of Whey Protein Isolate Solutions and Fouling Mass Distribution in a Plate Heat Exchanger |
| title_sort | denaturation kinetics of whey protein isolate solutions and fouling mass distribution in a plate heat exchanger |
| url | http://dx.doi.org/10.1155/2015/139638 |
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