scholarly journals Physical properties, molecular structures, and protein quality of texturized whey protein isolate: Effect of extrusion moisture content

2011 ◽  
Vol 94 (5) ◽  
pp. 2231-2244 ◽  
Author(s):  
P.X. Qi ◽  
C.I. Onwulata
Keyword(s):  
Moisture Content ◽  
Physical Properties ◽  
Whey Protein ◽  
Protein Quality ◽  
Whey Protein Isolate ◽  
Protein Isolate ◽  
Molecular Structures

Functional Characteristics of Extruded Blends of Potato Flakes and Whey Protein Isolate

2012 ◽  
Vol 7 (6) ◽  
Author(s):  
Mariya A. Dushkova ◽  
Nikolay D. Menkov ◽  
Nesho G. Toshkov
Keyword(s):  
Moisture Content ◽  
Whey Protein ◽  
Protein Level ◽  
Water Solubility ◽  
Whey Protein Isolate ◽  
Protein Isolate ◽  
Significant Rise ◽  
Feed Moisture ◽  
Feed Protein ◽  
Potato Flakes

The purpose of the present study was to explore the effects of feed moisture and the addition of whey protein isolate on some physicochemical properties of the obtained extrudates from potato flakes. Extrudates were produced using a laboratory single-screw extruder. Conditions during extrusion were: screw speed - 200 rpm; compression ratio - 3:1; extruders temperature zones - 120, 150, 160 °C; diameter of the nozzle - 5 mm. With increasing of feed moisture content and protein level, there was a significant rise of density as well as lowering of expansion of extrudates. As the feed moisture content increased from 13 to 20 percent w.w. the water absorption index (WAI) increased and the water solubility index (WSI) decreased. The feed protein level increased the protein content and decreased WAI. A maximum of WSI was observed at feed moisture content 20 percent w.w. and protein level 18 percent w.w. The extrusion and the protein addition do not affect the equilibrium moisture of the potato flakes extrudates.

Whey protein isolate biodegradable films: Influence of the citric acid and montmorillonite clay nanoparticles on the physical properties

2015 ◽  
Vol 43 ◽  
pp. 252-258 ◽  
Author(s):  
Viviane Machado Azevedo ◽  
Eric Keven Silva ◽  
Camila Ferreira Gonçalves Pereira ◽  
Joyce Maria Gomes da Costa ◽  
Soraia Vilela Borges
Keyword(s):  
Citric Acid ◽  
Physical Properties ◽  
Whey Protein ◽  
Whey Protein Isolate ◽  
Protein Isolate ◽  
Montmorillonite Clay ◽  
Biodegradable Films ◽  
Clay Nanoparticles
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