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Dispersible and Thermal Stable Nanofibrils Derived from Glycated Whey Protein

Liu, Gang ; Zhong, Qixin

Biomacromolecules, 2013-07, Vol.14 (7), p.2146-2153 [Periódico revisado por pares]

Washington, DC: American Chemical Society

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Título:
Dispersible and Thermal Stable Nanofibrils Derived from Glycated Whey Protein
Autor: Liu, Gang ; Zhong, Qixin
Assuntos: Analytical, structural and metabolic biochemistry ; Applied sciences ; Biological and medical sciences ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; Glycosylation ; Hydrogen-Ion Concentration ; Hydrophobic and Hydrophilic Interactions ; Lactose - chemistry ; Microscopy, Atomic Force ; Microscopy, Electron, Transmission ; Milk Proteins - chemistry ; Miscellaneous ; Nanofibers - chemistry ; Natural polymers ; Physicochemistry of polymers ; Proteins ; Spectrometry, Fluorescence ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; Viscosity ; Whey Proteins
É parte de: Biomacromolecules, 2013-07, Vol.14 (7), p.2146-2153
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Descrição: Formation of nanofibrils by heating proteins at pH 2.0 has been studied extensively because of the potential as novel biomaterials. However, nanofibrils of whey proteins have poor dispersibility and heat stability, limiting their application in fluidic and transparent products. We report, for the first time, the formation of nanofibrils from whey protein isolate (WPI) glycated with lactose (WPI-g-L) that were highly dispersible and remained transparent after heating at pH 3.0–7.0 and 0–150 mM NaCl. The WPI-g-L followed similar nanofibril formation mechanism as WPI based on reducing protein electrophoresis, analytical ultracentrifugation, and circular dichroism spectroscopy. The rate of nanofibril formation from WPI-g-L was similar to that of WPI, but the yield was lower based on thioflavin-T fluorescence spectroscopy. The presence of the glycated lactose on nanofibril surface provided steric hindrance enabling the dispersibility and thermal stability and supplying functions such as viscosity in various fluidic, transparent consumer products.
Editor: Washington, DC: American Chemical Society
Idioma: Inglês

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Dispersible and Thermal Stable Nanofibrils Derived from Glycated Whey Protein

Liu, Gang ; Zhong, Qixin

Washington, DC: American Chemical Society

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