Modeling of rheological properties of mellorine mix including different oil and gum types by combined design, ANN, and ANFIS models

Authors : Salih KARASU, Mahmut DOĞAN, Ömer Said TOKER, Erdal CANIYILMAZ

Pages : 745-757

Doi:10.3906/tar-1312-9

View : 13 | Download : 7

Publication Date : 2014-10-01

Article Type : Research Paper

Abstract :In the present study, the effects of 2 different oil types insert ignore into journalissuearticles values(soybean and olive oil); and 3 different gums insert ignore into journalissuearticles values(xanthan gum, sodium alginate, locust bean gum, and their blends); on the rheological and physicochemical properties insert ignore into journalissuearticles values(pH, titratable acidity, moisture, and color);, overrun, melting rate, melting time, and sensory properties of frozen mellorine samples were determined. Apparent viscosity of all mix samples decreased with shear rate, meaning that mellorine mix samples showed shear thinning behavior. Mellorine mix samples showed Ostwald-de Waele flow behavior insert ignore into journalissuearticles values(R2 >= 0.9915);. Viscous synergy indexes were calculated to determine if the gums had synergic interaction. The viscous synergy index value of the xanthan and locust bean gum combination was found to be approximately 1.80, indicating synergic interaction between them. The effects of different gums on the apparent viscosity values at 50 s-1 insert ignore into journalissuearticles values(eta50); were satisfactorily modeled by a modified power-law model. The adaptive neuro-fuzzy inference system insert ignore into journalissuearticles values(ANFIS); model was also found to be sufficient to predict apparent viscosity values based on the oil type, gum concentrations, and shear rate insert ignore into journalissuearticles values(R2 = 0.9121);. According to the combined design, the optimum gum concentration was determined to be 56.3% xanthan gum and 43.7% locust bean gum.
Keywords : ANFIS, ANN, combined design, gum, mellorine, rheology