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Relationships between dairy powder surface composition and wetting properties during storage: importance of residual lipids Inra
Gaiani, C.; Scher, J.; Ehrhardt, J.J.; Linder, M.; Schuck, P.; Desobry, S.; Banon, S..
The relationships between powder surface composition and powder rehydration properties undervariable conditions of storage are investigated in this paper. A rheological approach was used toevaluate the modifications induced by storage on the rehydration properties of native phosphocaseinatepowder. Concurrently, the powder surface composition (i.e., lactose, proteins, and lipids) was evaluatedby X-ray photoelectron spectroscopy (XPS). A strong correlation was found between the powderwetting time lengthening and the migration of lipids on the powder surface during storage. XPS studiesindicated also an over-representation of lipids on the powder surface (6%) in comparison with totallipids (0.4%) even on fresh powder before storage. Detailed investigation of...
Tipo: Journal Article Palavras-chave: DAIRY POWDER; LIPID; REHYDRATION; STORAGE; XPS; X-RAY PHOTOELECTRON SPECTROSCOPY.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008ad1c4175&uri=/notices/prodinra1/2008/02/
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