Effect of Rice Flour Addition on Quality Properties of Functional Dumpling Skins

Abstract

This study intends to present basic materials for the development and production of functional dumpling skins by making rice flour-added functional dumpling skins and analyzing the nature of its quality. The moisture content of dumpling skins increased with high addition of rice flour. The color value of dumpling skins changed little with high addition of rice flour. The hardness of dumpling skins showed significant difference in all storage periods with the addition of rice flour. For the sensory properties of dumpling skins with the addition of rice flour, where 25% and 50% rice-flour were added, dumpling skins showed a high score in overall quality for 0-day and 7-days of storage. In particular, the 50% rice-flour dumpling skin mixture indicated the highest score. For the correlation between textural and sensory properties according to the addition of rice flour, 0 day-stored dumpling skins showed a positive correlation between smoothness and moistness in the mouth feel and the overall quality (p＜0.01) in the sensory properties. Wheat odor (r=0.68) and chewiness (r=0.65) also correlated positively with overall quality (p＜0.05). Hardness in textural properties correlated positively with moistness (r=0.69) and the mouth feel (r=0.65) of dumpling skins (p＜0.05). Hardness in textural properties correlated positively with adhesiveness (r=0.99) and chewiness (r=0.93, p＜0.01). Dumpling skins stored for 7 days showed a positive correlation between hardness, chewiness, and moistness in the mouth feel and overall quality (p＜0.05) in the sensory properties. Hardness in textural properties correlated positively with gumminess (r=0.65, p＜0.05).