Title :

Effect of the phosphate/calcium molar ratio on fouling deposits generated by the processing of a whey protein isolate in a plate heat exchanger

Author(s) :

Blanpain Avet, Pascal [Auteur]
Processus aux Interfaces et Hygiène des Matériaux [PIHM]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Andre, Christophe [Auteur]
Hautes Etudes d’Ingénieur [Lille] [HEI]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Azevedo-Scudeller, Luisa [Auteur]
Croguennec, Thomas [Auteur]
Bellayer, Séverine [Auteur]
Ecole Nationale Supérieure de Chimie de Lille [ENSCL]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Six, Thierry [Auteur]
Processus aux Interfaces et Hygiène des Matériaux [PIHM]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Martins, Glêndara [Auteur]
Delaplace, Guillaume [Auteur]
Processus aux Interfaces et Hygiène des Matériaux [PIHM]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Unité Matériaux et Transformations (UMET) - UMR 8207

Journal title :

FOOD AND BIOPRODUCTS PROCESSING

Abbreviated title :

Food and Bioproducts Processing

Volume number :

121

Pages :

154-165

Publisher :

Elsevier BV

Publication date :

2020-05

ISSN :

0960-3085

English keyword(s) :

Fouling mechanism
Plate heat exchanger
Soluble inorganic phosphate
Beta-Lactoglobulin
Heat-induced beta-lactoglobulin denaturation/aggregation
Composition analysis

HAL domain(s) :

Sciences du Vivant [q-bio]/Ingénierie des aliments

English abstract : [en]

Whatever the dairy derived fluids that are heat processed, many studies have demonstrated the key role of beta-lactoglobulin (β-lg) denaturation in the initiation of a dairy fouling and mentioned that interactions between ...
Show more >Whatever the dairy derived fluids that are heat processed, many studies have demonstrated the key role of beta-lactoglobulin (β-lg) denaturation in the initiation of a dairy fouling and mentioned that interactions between β-lg, phosphate and calcium ions are essential in fouling growth. However only few authors have reported the influence of the phosphate/calcium molar ratio on fouling mechanisms. To partly fill this gap, various whey protein solutions (composed mainly of β-lg) having different phosphate:calcium molar ratios were prepared by rehydrating a whey protein isolate powder and by adding calcium chloride and various amounts of soluble inorganic phosphate (noted Pi). Fouling experiments were carried out at pilot scale using a plate heat exchanger (PHE) at a fixed temperature profile and the deposited mass per channel was measured. Finally, the chemical composition and structure of the proteinaceous fouling layer were observed using an Electron Probe Micro Analyser. Results clearly demonstrated that the phosphate:calcium molar ratio modified the deposit structure and influenced substantially the amount of fouling. These results suggest that the relative proportion of calcium phosphate and calcium ions governs the mechanism of fouling build-up and also sets, to a certain extent, the fouling ability of the whey protein solutions.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Processus aux Interfaces et Hygiène des Matériaux (PIHM)

Submission date :

2020-12-08T15:31:43Z