Effects of cold atmospheric-pressure plasma on the rheological properties of gum Arabic

Abstract The main focus of current research was on the effect of cold atmospheric-pressure plasma (CAP) on the rheological properties of gum Arabic (GA). GA powder was treated by dielectric barrier discharge (DBD) plasma with ambient air at different times (20, 40, and 60 min). The rheological properties of both natural and treated-gum dispersions were specified. The results showed the CAP treatment time had a notable and non-linear effect on the rheological parameters of the treated gums. Compared with control, all treated-gum dispersions showed higher apparent viscosity within the applied shear rate range (0.01-400 s-1). The highest viscosity (50 s-1) belonged to the dispersion of the gum treated for 20 min. CAP treatment significantly (p