Maillard conjugation of whey protein isolate with water-soluble fraction of almond gum or flaxseed mucilage by dry heat treatment.

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ID: 85340
2020
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Abstract
The Maillard conjugation of whey protein isolate (WPI) by dry heat treatment (74% relative humidity at 60 °C) to either the water-soluble fraction of almond gum (SFAG) or flaxseed mucilage (SFM) was compared. Depending on the protein to polysaccharide ratio, carbohydrate type, and incubation time, different degrees of substitutions of the amino groups were obtained. The characterization of the conjugates by TNBS, SDS-PAGE, size exclusion chromatography, and circular dichroism analysis confirmed the formation of conjugates. SFAG was found to have less tendency for the formation of grafted WPI than SFM, which could be attributed to both the polysaccharide composition and/or a higher molecular weight. Ultimately, the emulsions stabilized by conjugates (pH 5.0 and 6.5) remained homogenous with no droplet size variation after heating, indicating that the conjugation of WPI to SFAG and SFM substantially improved its heat stability.
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sedaghat-doost2020maillardfood Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Sedaghat Doost, Ali;Nikbakht Nasrabadi, Maryam;Goli, Sayed Amir Hossein;van Troys, Marleen;Dubruel, Peter;De Neve, Nympha;Van der Meeren, Paul;
Journal food research international (ottawa, ont)
Year 2020
DOI
S0963-9969(19)30665-9
URL
Keywords
milk protein almond gum covalent conjugation flaxseed mucilage improved heat stability

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