Pea protein isolate-soluble soybean polysaccharides electrostatic assembly: effect of pH, biopolymer mass ratio and heat treatment.
J Sci Food Agric
; 104(12): 7291-7300, 2024 Sep.
Article
em En
| MEDLINE
| ID: mdl-38647043
ABSTRACT
BACKGROUND:
In past years, thousands of protein-polysaccharide complexes have been investigated to modify protein characteristics and functionality in food systems. However, the interaction between pea protein isolate (PPI) and soluble soybean polysaccharide (SSPS) has not been thoroughly characterized yet.RESULTS:
In the present study, the phase behavior of PPI and SSPS mixtures was analyzed as a function of PPISSPS mixing ratio (11 to 10.10) and pH (7.0 to 2.0), showing that these biopolymers could be electrostatically assembled at 11 to 10.25 mixing ratios and 4.0 to 3.0 pH values. Then, the characteristics of the PPI-SSPS complexes were studied before and after heating (90 °C and 30 min) by ζ-potential, surface hydrophobicity, protein solubility, particle size distribution and physical stability for 56 days. By lowering the pH and PPISSPS mixing ratio, the complexes showed increased solubility, changed ð-potential and higher physical stability. By heating, the complexes presented increased hydrophobicity and physical stability.CONCLUSION:
Overall, PPI-SSPS complexes increased the protein solubility, reduced the particle size, and changed both the ζ-potential and the surface hydrophobicity with respect to PPI control, allowing stabilization of the colloidal system and broadening the possible applications of these high-quality proteins in acidic food systems. © 2024 Society of Chemical Industry.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Polissacarídeos
/
Solubilidade
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Glycine max
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Pisum sativum
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Eletricidade Estática
/
Interações Hidrofóbicas e Hidrofílicas
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Proteínas de Ervilha
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Temperatura Alta
Idioma:
En
Revista:
J Sci Food Agric
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Argentina
País de publicação:
Reino Unido