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Soy Protein Isolate Components and Their Interactions
Journal of Agricultural and Food Chemistry, 1995The electrophoretic behavior of a soy protein isolate was analyzed in both nonreducing and reducing SDS-PAGE. Aggregates formed by α and α' subunits of β-conglycinin exhibited both ionic interactions and disulfide bonds. Higher molecular weight aggregates (180 000-190 000) consisted of trimers or dimers of α' and α subunits, whereas those of ...
Silvana Petruccelli, Maria Cristina Anon
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Impacts of Soy Protein Isolate Hydrolysates on Gel Properties of High-Protein Soy Yogurt
Food ChemistryIn this study, the effects of incorporating soy protein isolate (SPI) and its hydrolysates (SPHs) on the gel properties of high-protein soy yogurt was investigated. Papain hydrolysis induced increased SPI solubility, reduced molecular weight and a more uniform size distribution as indicated by SDS-PAGE and SEC-HPLC.
Ziyi, Li +7 more
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Hexanal Synthesis in Isolated Soy Proteins
Journal of the American Oil Chemists' Society, 2007AbstractSodium erythrobate (2.3 mM) and dithiothreitol (6.5 mM) caused headspace hexanal from aqueous slurries of commercial isolated soy proteins (ISP) to increase by as much as 13‐fold compared with headspace hexanal in the controls. When linoleic acid was also added, headspace hexanal levels from commercial and laboratory‐prepared ISP were further ...
W. L. Boatright, G. Lu
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Thermal Aggregation of Soy Protein Isolates
Journal of Agricultural and Food Chemistry, 1995Thermal behavior of soy protein isolates under different conditions of temperature, time, pH, protein concentration, and presence of reducing agents was studied. Thermal treatments above 85 °C showed a decrease in concentration of the AB-11s subunit and of the two protein species of 20 and 29 kDa, and a gradual increase in the concentration of the A ...
S. Petruccelli, M. C. Anon
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Emulsifying and physicochemical properties of soy hull hemicelluloses-soy protein isolate conjugates
Carbohydrate Polymers, 2017Protein-polysaccharide conjugates could potentially combine the excellent emulsification properties of the protein with the stabilizing effect of the polysaccharide. The investigation aimed to prepare soy hull hemicelluloses-soy protein isolate (SHH-SPI) conjugates by Maillard reaction in a controlled dry state condition and assess the suitability of ...
Li, Wang, Min, Wu, Hua-Min, Liu
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Structural and Functional Properties of Soy Protein Isolates Modified by Soy Soluble Polysaccharides
Journal of Agricultural and Food Chemistry, 2016Aiming to achieve the modification to soy protein isolate (SPI) by soy soluble polysaccharides (SSPS), electrically driven complex systems were first established in the environment of pH 3.0, and then reconstituted SPI particles with different SPI-SSPS ratios were obtained under freeze-drying process.
Yan-Teng, Xu, Ling-Ling, Liu
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Critical Reviews in Food Science and Nutrition, 2019
Background: Many randomized controlled trials (RCTs) have assessed the effects of soy products on serum lipids. However, the responsible soy components and the magnitude of effects in healthy or hypercholesterolemic postmenopausal women are unclear.
Maedeh, Moradi +2 more
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Background: Many randomized controlled trials (RCTs) have assessed the effects of soy products on serum lipids. However, the responsible soy components and the magnitude of effects in healthy or hypercholesterolemic postmenopausal women are unclear.
Maedeh, Moradi +2 more
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Natural Electroactive Hydrogel from Soy Protein Isolation
Biomacromolecules, 2010A natural electroactive protein hydrogel was prepared from soy protein isolate (SPI) solution by cross-linking with epichlorohydrin. Under electrical stimulus, such SPI hydrogel quickly bends toward one electrode, showing a good electroactivity. Because of its amphoteric nature, the SPI hydrogel bends either toward the anode (pH < 6) or cathode (pH > 6)
Kun, Tian, Zhengzhong, Shao, Xin, Chen
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Thermal stability of soy protein isolate and hydrolysate ingredients
Food Chemistry, 2008The objective of this study was to characterize the effects of pH, protein concentration and calcium supplementation on thermal stability, at 140°C, of soy protein isolate (SPI) and soy protein hydrolysate (SPH) ingredients.
M, Ryan +6 more
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Biodegradable Soy Protein Isolate-Based Materials: A Review
Biomacromolecules, 2011Recently, there is an increasing interest of using bio-based polymers instead of conventional petroleum-based polymers to fabricate biodegradable materials. Soy protein isolate (SPI), a protein with reproducible resource, good biocompatibility, biodegradability, and processability, has a significant potential in the food industry, agriculture ...
Fei, Song +3 more
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