TY - JOUR
T1 - Effect of dynamic high-pressure treatment on the interfacial and foaming properties of soy protein isolate-hydroxypropylmethylcelluloses systems
AU - Martínez, Karina D.
AU - Ganesan, Vykundeshwari
AU - Pilosof, Ana M.R.
AU - Harte, Federico M.
N1 - Funding Information:
This research was supported by Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina (Conicet) , the Agencia Nacional de Promoción Científica y Tecnológica de la República Argentina (PICT 2008-1901) and The University of Tennessee , Knoxville, USA.
PY - 2011/8
Y1 - 2011/8
N2 - The objective of the work was to study the effect of dynamic high-pressure homogenization (HPH) on the interfacial and foaming properties of soy protein isolate (SP) and surface-active polysaccharides (E4M and E15) with different molecular weight.SP was dispersed with water (2% w/v) together with the polysaccharides (0.3% w/v) and subjected to high-pressure from 0 to 300. MPa, in 100. MPa intervals. After treatment, foam overrun by whipping method, viscosity, particle size distribution and surface pressure at 48. s of drop formation time, of systems were measured.The effect of HPH of these systems on foam overrun was not directly relation with the effect on the surface pressure at short adsorption time. The viscosity decrease may be explained some of the foaming results together with interfacial performance at longer adsorption time than 48. s which depend on the system and level of pressure applied.According to the polysaccharide used in this work, interactions between SP and polysaccharides apparently favour the foam overrun on untreated mixed systems; this effect was promoted using HPH particularly in the case of E15 at 300. MPa. The effect of SP-E4M was less pronounced from the one observed for E15. Thus, the molecular weight of polysaccharides is a very important factor of interaction with soy protein isolate under these conditions of high-pressure homogenization.
AB - The objective of the work was to study the effect of dynamic high-pressure homogenization (HPH) on the interfacial and foaming properties of soy protein isolate (SP) and surface-active polysaccharides (E4M and E15) with different molecular weight.SP was dispersed with water (2% w/v) together with the polysaccharides (0.3% w/v) and subjected to high-pressure from 0 to 300. MPa, in 100. MPa intervals. After treatment, foam overrun by whipping method, viscosity, particle size distribution and surface pressure at 48. s of drop formation time, of systems were measured.The effect of HPH of these systems on foam overrun was not directly relation with the effect on the surface pressure at short adsorption time. The viscosity decrease may be explained some of the foaming results together with interfacial performance at longer adsorption time than 48. s which depend on the system and level of pressure applied.According to the polysaccharide used in this work, interactions between SP and polysaccharides apparently favour the foam overrun on untreated mixed systems; this effect was promoted using HPH particularly in the case of E15 at 300. MPa. The effect of SP-E4M was less pronounced from the one observed for E15. Thus, the molecular weight of polysaccharides is a very important factor of interaction with soy protein isolate under these conditions of high-pressure homogenization.
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U2 - 10.1016/j.foodhyd.2011.02.013
DO - 10.1016/j.foodhyd.2011.02.013
M3 - Article
AN - SCOPUS:79955039541
SN - 0268-005X
VL - 25
SP - 1640
EP - 1645
JO - Food Hydrocolloids
JF - Food Hydrocolloids
IS - 6
ER -