Phase Diagram of Dairy Protein Mixes Obtained by Single Droplet Drying Experiments

Dairy powders are mainly produced by droplet spray drying, an articulated process that enables the manufacture of high added-value goods with a long shelf life and well-preserved functional properties. Despite the recent advances, a full understanding of the mechanisms occurring at the droplet scale...

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Main Authors: Ming Yu, Cécile Le Floch-Fouéré, Jeehyun Lee, Françoise Boissel, Romain Jeantet, Luca Lanotte
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/11/4/562
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author Ming Yu
Cécile Le Floch-Fouéré
Jeehyun Lee
Françoise Boissel
Romain Jeantet
Luca Lanotte
author_facet Ming Yu
Cécile Le Floch-Fouéré
Jeehyun Lee
Françoise Boissel
Romain Jeantet
Luca Lanotte
author_sort Ming Yu
collection DOAJ
description Dairy powders are mainly produced by droplet spray drying, an articulated process that enables the manufacture of high added-value goods with a long shelf life and well-preserved functional properties. Despite the recent advances, a full understanding of the mechanisms occurring at the droplet scale in drying towers and, consequently, of the impact of process parameters and processed fluid characteristics on the powder properties is far from being achieved. In the wake of previous studies based on a laboratory scale approach, in this work, we provided a global picture of the drying in droplets of dairy protein mixes, i.e., whey proteins and casein micelles, which represent crucial dairy powder ingredients. Using profile visualization and optical microscopy, we explored the shape evolution in droplets with a range of protein contents and compositions typical of commercial powder production. The observation favored the evaluation of the specific role of each protein on the evaporation dynamics, and led to the construction of a phase diagram predictive of the dry droplet shape starting from the characteristics of the initial protein dispersions. Our outcomes represent a further step shedding light on the paradigm linking the physics of drying at the microscale and the nutritional properties of complex dairy powders.
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spelling doaj.art-081bbc704696493da51cf1ba083629412023-11-23T19:53:49ZengMDPI AGFoods2304-81582022-02-0111456210.3390/foods11040562Phase Diagram of Dairy Protein Mixes Obtained by Single Droplet Drying ExperimentsMing Yu0Cécile Le Floch-Fouéré1Jeehyun Lee2Françoise Boissel3Romain Jeantet4Luca Lanotte5STLO, INRAE, Institut Agro, 35042 Rennes, FranceSTLO, INRAE, Institut Agro, 35042 Rennes, FranceSTLO, INRAE, Institut Agro, 35042 Rennes, FranceSTLO, INRAE, Institut Agro, 35042 Rennes, FranceSTLO, INRAE, Institut Agro, 35042 Rennes, FranceSTLO, INRAE, Institut Agro, 35042 Rennes, FranceDairy powders are mainly produced by droplet spray drying, an articulated process that enables the manufacture of high added-value goods with a long shelf life and well-preserved functional properties. Despite the recent advances, a full understanding of the mechanisms occurring at the droplet scale in drying towers and, consequently, of the impact of process parameters and processed fluid characteristics on the powder properties is far from being achieved. In the wake of previous studies based on a laboratory scale approach, in this work, we provided a global picture of the drying in droplets of dairy protein mixes, i.e., whey proteins and casein micelles, which represent crucial dairy powder ingredients. Using profile visualization and optical microscopy, we explored the shape evolution in droplets with a range of protein contents and compositions typical of commercial powder production. The observation favored the evaluation of the specific role of each protein on the evaporation dynamics, and led to the construction of a phase diagram predictive of the dry droplet shape starting from the characteristics of the initial protein dispersions. Our outcomes represent a further step shedding light on the paradigm linking the physics of drying at the microscale and the nutritional properties of complex dairy powders.https://www.mdpi.com/2304-8158/11/4/562dryingdairy proteinsphase diagram
spellingShingle Ming Yu
Cécile Le Floch-Fouéré
Jeehyun Lee
Françoise Boissel
Romain Jeantet
Luca Lanotte
Phase Diagram of Dairy Protein Mixes Obtained by Single Droplet Drying Experiments
Foods
drying
dairy proteins
phase diagram
title Phase Diagram of Dairy Protein Mixes Obtained by Single Droplet Drying Experiments
title_full Phase Diagram of Dairy Protein Mixes Obtained by Single Droplet Drying Experiments
title_fullStr Phase Diagram of Dairy Protein Mixes Obtained by Single Droplet Drying Experiments
title_full_unstemmed Phase Diagram of Dairy Protein Mixes Obtained by Single Droplet Drying Experiments
title_short Phase Diagram of Dairy Protein Mixes Obtained by Single Droplet Drying Experiments
title_sort phase diagram of dairy protein mixes obtained by single droplet drying experiments
topic drying
dairy proteins
phase diagram
url https://www.mdpi.com/2304-8158/11/4/562
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AT francoiseboissel phasediagramofdairyproteinmixesobtainedbysingledropletdryingexperiments
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