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Open AccessArticle

Addition of Selected Plant-Derived Proteins as Modifiers of Inulin Hydrogels Properties

Institute of Food Science, Department of Food Technology and Assessment, Warsaw University of Life Sciences-SGGW, 159c Nowoursynowska Street, 02-787 Warsaw, Poland
Author to whom correspondence should be addressed.
Foods 2020, 9(7), 845;
Received: 1 June 2020 / Revised: 24 June 2020 / Accepted: 25 June 2020 / Published: 29 June 2020
The aim of the study was to determine the effects of pea and soy protein addition (1, 3, 6 g/100 g) on inulin hydrogels properties. Inulin hydrogels (20 g/100 g) were obtained by thermal induction. It was stated that tested plant protein might be used as a modifier of inulin hydrogels properties. The addition of pea and soy protein to inulin hydrogels resulted in networks with more a compact and homogeneous structure. The increase of the protein concentration caused the structure of the hydrogels to get smoother, more cohesive, and less granular. Pea and soy protein addition (3–6 g/100 g) to hydrogels allowed to obtain higher values of yield stress, texture (firmness, adhesiveness) and spreadability parameters. At a protein concentration of 6 g/100 g, the firmness of inulin hydrogels was seven times higher for those with pea protein (1.87 N) and ten times higher for those with soy protein (2.60 N) compering to the control hydrogel (0.24 N). The transmission profiles of hydrogels with incorporated 6 g/100 g of soy proteins showed the slowest motion of the particles, which indicates the highest stability of gel. As the concentration of protein addition increased, a reduction in the lightness was observed. View Full-Text
Keywords: inulin hydrogel; pea protein; soy protein inulin hydrogel; pea protein; soy protein
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Florowska, A.; Hilal, A.; Florowski, T.; Wroniak, M. Addition of Selected Plant-Derived Proteins as Modifiers of Inulin Hydrogels Properties. Foods 2020, 9, 845.

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