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Type: Artigo de periódico
Title: Soursop Juice Stabilized With Soy Fractions: A Rheologial Approach [suco De Graviola Estabilizado Com Frações De Soja: Uma Avaliação Reológica]
Author: Fasolin L.H.
da Cunha R.L.
Abstract: The potential use of soybean soluble polysaccharide (SSPS) as a stabilizer in acidic beverages was evaluated using rheological and stability studies. For this purpose, soy-based beverages were formulated with soy protein isolate (SPI) and soursop juice due to the low stability of this kind of dispersion. The influences of the concentrations of soybean soluble polysaccharide, calcium chloride, and soy protein isolate on the stability and rheology of soursop juice were evaluated using a factorial experimental design. Interactions between the concentrations of soybean soluble polysaccharide and soy protein isolate exerted a positive effect on the maximum Newtonian viscosity. The stability was positively influenced by the soybean soluble polysaccharide and soy protein isolate concentrations, but the interactions between soy protein isolate and CaCl2 also affected the sedimentation index. These results suggest that soybean soluble polysaccharide is effective in stabilizing fibers and proteins in acidic suspensions due to the increase in viscosity and steric effect caused by the formation of complexes between the soybean soluble polysaccharide and soy protein isolate.
Rights: aberto
Identifier DOI: 10.1590/S0101-20612012005000072
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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