a b s t r a c t
Physicochemical properties of dumpling wrappers with different levels of acetylated potato starch (APS)were measured. Differential scanning calorimetry (DSC) indicated that the presence of APS significantlyreduced the freezable water content (FWC) of the system. For the systems, the mobility of the waterwhich was measured by pulse nuclear magnetic resonance (NMR) demonstrated that the existence ofAPS reduced the relaxation time. Whereas, the centrifugation measurement indicated that the waterholding capacity (WHC) values of wheat flour with APS were higher than the control. Scanning electronmicroscope (SEM) was used to examine the micromorphology of dumpling wrappers.© 2014 Elsevier B.V. All rights reserved