TY - JOUR
T1 - Rheological and physical properties of spray-dried mucilage obtained from Hylocereus undatus cladodes
AU - García-Cruz, E. E.
AU - Rodríguez-Ramírez, J.
AU - Méndez Lagunas, L. L.
AU - Medina-Torres, L.
PY - 2013/1/2
Y1 - 2013/1/2
N2 - This study examines the rheological behavior of reconstituted spray-dried mucilage isolated from the cladodes of pitahaya (Hylocereus undatus), the effects of concentration and its relationship with physical properties were analyzed in reconstituted solutions. Drying process optimization was carried out through the surface response method, utilizing a factorial 23 design with three central points, in order to evaluate yield and rheological properties. The reconstituted mucilage exhibited non-Newtonian shear-thinning behavior, which adequately fit the Cross model (R2 > 0.95). This dynamic response suggests a random coil configuration. The steady-shear viscosity and dynamic response are suitably correlated through the Cox-Merz rule, confirming the mucilage's stability of flow. Analysis of the physical properties of the mucilage (Tg, DTP, and particle morphology) explains the shear-thinning behavior.
AB - This study examines the rheological behavior of reconstituted spray-dried mucilage isolated from the cladodes of pitahaya (Hylocereus undatus), the effects of concentration and its relationship with physical properties were analyzed in reconstituted solutions. Drying process optimization was carried out through the surface response method, utilizing a factorial 23 design with three central points, in order to evaluate yield and rheological properties. The reconstituted mucilage exhibited non-Newtonian shear-thinning behavior, which adequately fit the Cross model (R2 > 0.95). This dynamic response suggests a random coil configuration. The steady-shear viscosity and dynamic response are suitably correlated through the Cox-Merz rule, confirming the mucilage's stability of flow. Analysis of the physical properties of the mucilage (Tg, DTP, and particle morphology) explains the shear-thinning behavior.
KW - Cross model
KW - Optimization
KW - Physical properties
KW - Pitahaya mucilage
KW - Rheological properties
UR - http://www.scopus.com/inward/record.url?scp=84865813443&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2012.08.048
DO - 10.1016/j.carbpol.2012.08.048
M3 - Artículo
C2 - 23044149
SN - 0144-8617
VL - 91
SP - 394
EP - 402
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
IS - 1
ER -