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Abstract:

The effect of high intensity ultrasound (HIUS) may produce structural modifications on proteins through a friendly environmental process. Thus, it can be possible to obtain aggregates with a determined particle size, and altering a defined functional property at the same time. The objective of this work was to explore the impact of HIUS on the functionality of a denatured soy protein isolate (SPI) on foaming and interfacial properties. SPI solutions at pH 6.9 were treated with HIUS for 20 min, in an ultrasonic processor at room temperature, at 75, 80 and 85 °C. The operating conditions were: 20 kHz, 4.27 ± 0.71 W and 20% of amplitude. It was determined the size of the protein particles, before and after the HIUS treatment, by dynamic light scattering. It was also analyzed the interfacial behavior of the different systems as well as their foaming properties, by applying the whipping method. The HIUS treatment and HIUS with temperature improved the foaming capacity by alteration of particle size whereas stability was not modified significantly. The temperature of HIUS treatment (80 and 85°C) showed a synergistic effect on foaming capacity. It was found that the reduction of particle size was related to the increase of foaming capacity of SPI. On the other hand, the invariable elasticity of the interfacial films could explain the stability of foams over time. © 2015 Elsevier B.V.

Registro:

Documento: Artículo
Título:Modification of foaming properties of soy protein isolate by high ultrasound intensity: Particle size effect
Autor:Morales, R.; Martínez, K.D.; Pizones Ruiz-Henestrosa, V.M.; Pilosof, A.M.R.
Filiación:Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, 1428, Argentina
Palabras clave:Foaming properties; Interfacial properties; Soy protein isolate; Ultrasound; Light scattering; Particle size; Proteins; Ultrasonics; Environmental process; Foaming properties; Functional properties; High intensity ultrasounds; Interfacial behaviors; Interfacial property; Soy protein isolates; Structural modifications; Agglomeration; soybean protein; water; air; chemistry; isolation and purification; particle size; protein denaturation; ultrasound; Air; Particle Size; Protein Denaturation; Soybean Proteins; Ultrasonic Waves; Water
Año:2015
Volumen:26
Página de inicio:48
Página de fin:55
DOI: http://dx.doi.org/10.1016/j.ultsonch.2015.01.011
Título revista:Ultrasonics Sonochemistry
Título revista abreviado:Ultrason. Sonochem.
ISSN:13504177
CODEN:ULSOE
CAS:soybean protein, 9010-10-0; water, 7732-18-5; Soybean Proteins; Water
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13504177_v26_n_p48_Morales

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Citas:

---------- APA ----------
Morales, R., Martínez, K.D., Pizones Ruiz-Henestrosa, V.M. & Pilosof, A.M.R. (2015) . Modification of foaming properties of soy protein isolate by high ultrasound intensity: Particle size effect. Ultrasonics Sonochemistry, 26, 48-55.
http://dx.doi.org/10.1016/j.ultsonch.2015.01.011
---------- CHICAGO ----------
Morales, R., Martínez, K.D., Pizones Ruiz-Henestrosa, V.M., Pilosof, A.M.R. "Modification of foaming properties of soy protein isolate by high ultrasound intensity: Particle size effect" . Ultrasonics Sonochemistry 26 (2015) : 48-55.
http://dx.doi.org/10.1016/j.ultsonch.2015.01.011
---------- MLA ----------
Morales, R., Martínez, K.D., Pizones Ruiz-Henestrosa, V.M., Pilosof, A.M.R. "Modification of foaming properties of soy protein isolate by high ultrasound intensity: Particle size effect" . Ultrasonics Sonochemistry, vol. 26, 2015, pp. 48-55.
http://dx.doi.org/10.1016/j.ultsonch.2015.01.011
---------- VANCOUVER ----------
Morales, R., Martínez, K.D., Pizones Ruiz-Henestrosa, V.M., Pilosof, A.M.R. Modification of foaming properties of soy protein isolate by high ultrasound intensity: Particle size effect. Ultrason. Sonochem. 2015;26:48-55.
http://dx.doi.org/10.1016/j.ultsonch.2015.01.011