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Quality Characteristics of Yanggeng Prepared with Different Concentrations of Mulberry Fruit Syrup  

Kim, Ae-Jung (The Graduate School of Alternative Medicine, Kyonggi University)
Publication Information
Journal of the East Asian Society of Dietary Life / v.22, no.1, 2012 , pp. 62-67 More about this Journal
Abstract
In this research, mulberry fruit was processed into mulberry fruit syrup (MFS) using sugar and then used as stabilizer for anthocyanine pigment in yanggeng. MFS was added to the yanggeng in order to make mixture ratio of 0%, 5%, 10%, 15% and 20%. The resulting sensory and physicochemical aspects, as compared between the various MFS ratio were investigated. The yanggeng L and b values decreased with increasing ratio of MFS. With addition of MFS the sensory evaluation results for, taste, color, flavor, texture and overall acceptability improved. The yanggeng prepared using MFS found to possess more effective antioxidants behavior as observed by in vitro evaluating 1,1-diphenyl-2-picrylhydrazyl(DPPH) radical scavenging and superoxide radical activities. The $IC_{50}$ of the antioxidant was found to be proportional to the mulberry fruit syrup concentration in the yanggeng.
Keywords
Mulberry fruit syrup; yanggeng; sensory evaluation;
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