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dc.creatorLago, Amanda Maria Teixeira-
dc.creatorNeves, Isabelle Cristina Oliveira-
dc.creatorOliveira, Natália Leite-
dc.creatorBotrel, Diego Alvarenga-
dc.creatorMinim, Luis Antonio-
dc.creatorResende, Jaime Vilela de-
dc.date.accessioned2020-04-06T13:11:20Z-
dc.date.available2020-04-06T13:11:20Z-
dc.date.issued2019-01-
dc.identifier.citationLAGO, A. M. T. et al. Ultrasound-assisted oil-in-water nanoemulsion produced from Pereskia aculeata Miller mucilage. Ultrasonics Sonochemistry, [S.l.], v. 50, p. 339-353, Jan. 2019.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S1350417718310009pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/39811-
dc.description.abstractFor the preparation of nanoemulsions, the correct choice of emulsifiers, together with the emulsification methods, directly influences the final product quality. The present study reports the ultrasound-assisted preparation of oil-in-water nanoemulsions produced with mucilage extracted from leaves of Pereskia aculeata Miller (ora-pro-nobis; OPN). The OPN mucilage (%) and soybean oil (%) concentration range, and the process operating parameters, ultrasonic power amplitude (%) and sonication time (min), were optimized based on the mean droplet diameter (). The effect of the mucilage and oil concentrations was also investigated by the response variables such as polydispersity, density, turbidity, viscosity, zeta-potential, and interfacial tension. The higher OPN mucilage concentrations (%) with lower amounts of soybean oil (%) favored nanoemulsion formations (116 ≤  ≤ 171 nm) and increased polydispersity, density, and zeta-potential. On increasing OPN mucilage and soybean oil the turbidity of the dispersions increased. All colloidal systems showed Newtonian behavior, and the viscosity in the systems increased due to the greater OPN mucilage concentration in the aqueous phase at a certain oil concentration. In addition, lower values of equilibrium interfacial tension were found with increasing OPN mucilage concentrations. Finally, from the stability test, it can be pointed out that the OPN mucilage concentration should be between 1.0 and 1.5% and the oil concentration should be less than 5%, so that lower values are maintained over time. Therefore, mucilage extracted from OPN and the ultrasound technique can be used in the preparation of nanoemulsions.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceUltrasonics Sonochemistrypt_BR
dc.subjectColloidal systemspt_BR
dc.subjectNatural emulsifierpt_BR
dc.subjectOra-pro-nobispt_BR
dc.subjectSonicatorpt_BR
dc.subjectUltrasonicationpt_BR
dc.subjectKinetic stabilitypt_BR
dc.titleUltrasound-assisted oil-in-water nanoemulsion produced from Pereskia aculeata Miller mucilagept_BR
dc.typeArtigopt_BR
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