Water penetration into mixed and un-mixed carbohydrate powders
Many Industrial food-related processes involve the hydration of powders. The penetration of water in both liquid and vapour forms into carbohydrate powders has been studied using the techniques of low-field Time Domain NMR, Dynamic Vapour Sorption, and optical microscopy. A simplified model of water...
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2020-12-01
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doaj-8f6346a416b24630831ab3d53f2984e02021-02-27T04:41:39ZengElsevierCarbohydrate Polymer Technologies and Applications2666-89392020-12-011100007Water penetration into mixed and un-mixed carbohydrate powdersCharfedinne Ayed0Filippo Bramante1Ogueri Nwaiwu2William MacNaughtan3Serafim Bakalis4Timothy J. Foster5Department of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK; Corresponding authors.Department of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UKDepartment of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UKDepartment of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UKDepartment of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, UK; Department of Food Science (UCPH FOOD), University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg, DenmarkDepartment of Food, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK; Corresponding authors.Many Industrial food-related processes involve the hydration of powders. The penetration of water in both liquid and vapour forms into carbohydrate powders has been studied using the techniques of low-field Time Domain NMR, Dynamic Vapour Sorption, and optical microscopy. A simplified model of water penetration into powders has been produced, principally derived from NMR measurements. No-mixing, mixing and overmixing conditions were studied. There was concurrently a progressive association of solids with the liquid (not necessarily solubilisation) and hydration behaviour approximated by 2 relaxation components in the case of potato flake and 3 components in the case of pre-gelatinised starch. Microscopic evidence is consistent with this behaviour, and the maintenance of structure in potato flake was evident in contrast to the complete dissolution of pre-gelatinised starch. Vapour rather than water sorption removes any capillarity/water meniscus effect and both pre-gelatinised starch and potato flake showed different levels of surface adsorption and penetration behaviour but with the same time course.http://www.sciencedirect.com/science/article/pii/S2666893920300074Powder hydrationCarbohydrateMixingLow-resolution NMRDVSMicroscopy |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Charfedinne Ayed Filippo Bramante Ogueri Nwaiwu William MacNaughtan Serafim Bakalis Timothy J. Foster |
spellingShingle |
Charfedinne Ayed Filippo Bramante Ogueri Nwaiwu William MacNaughtan Serafim Bakalis Timothy J. Foster Water penetration into mixed and un-mixed carbohydrate powders Carbohydrate Polymer Technologies and Applications Powder hydration Carbohydrate Mixing Low-resolution NMR DVS Microscopy |
author_facet |
Charfedinne Ayed Filippo Bramante Ogueri Nwaiwu William MacNaughtan Serafim Bakalis Timothy J. Foster |
author_sort |
Charfedinne Ayed |
title |
Water penetration into mixed and un-mixed carbohydrate powders |
title_short |
Water penetration into mixed and un-mixed carbohydrate powders |
title_full |
Water penetration into mixed and un-mixed carbohydrate powders |
title_fullStr |
Water penetration into mixed and un-mixed carbohydrate powders |
title_full_unstemmed |
Water penetration into mixed and un-mixed carbohydrate powders |
title_sort |
water penetration into mixed and un-mixed carbohydrate powders |
publisher |
Elsevier |
series |
Carbohydrate Polymer Technologies and Applications |
issn |
2666-8939 |
publishDate |
2020-12-01 |
description |
Many Industrial food-related processes involve the hydration of powders. The penetration of water in both liquid and vapour forms into carbohydrate powders has been studied using the techniques of low-field Time Domain NMR, Dynamic Vapour Sorption, and optical microscopy. A simplified model of water penetration into powders has been produced, principally derived from NMR measurements. No-mixing, mixing and overmixing conditions were studied. There was concurrently a progressive association of solids with the liquid (not necessarily solubilisation) and hydration behaviour approximated by 2 relaxation components in the case of potato flake and 3 components in the case of pre-gelatinised starch. Microscopic evidence is consistent with this behaviour, and the maintenance of structure in potato flake was evident in contrast to the complete dissolution of pre-gelatinised starch. Vapour rather than water sorption removes any capillarity/water meniscus effect and both pre-gelatinised starch and potato flake showed different levels of surface adsorption and penetration behaviour but with the same time course. |
topic |
Powder hydration Carbohydrate Mixing Low-resolution NMR DVS Microscopy |
url |
http://www.sciencedirect.com/science/article/pii/S2666893920300074 |
work_keys_str_mv |
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