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Effect of Mashed Red Pepper Admixed with Various Freezing Point Depression Agents on the Quality Characteristics of kimchi  

Sung, Jung-Min (Korea Food Research Institute)
Lim, Jeong-Ho (Korea Food Research Institute)
Kim, Sun-Im (Sookmyung Women's University)
Jeong, Jin-Woong (Korea Food Research Institute)
Publication Information
Food Science and Preservation / v.16, no.6, 2009 , pp. 861-868 More about this Journal
Abstract
We investigated the use of mashed red pepper in the manufacture of kimchi using various freezing point depression agents (glucose, pectin, ascorbic acid or NaCl). In sensory evaluation results, overall acceptance seemed to be highly related to NaCl content. Kimchi was prepared using mashed red pepper with different levels of NaCl (3, 5, and 10% w/w), and quality characteristics were investigated during storage at $10^{\circ}C$. Salt concentrations of kimchi prepared with addition of 3, 5, or 10% NaCl, and control kimchi, were 2.28, 2.47, 3.10 and 1.92%, respectively. pH values varied significantly among treatments but acidity levels did not differ significantly except during the early stages of production. With increasing NaCl addition, the acidity of kimchi was lower than that of control samples during later fermentation periods. At day 20, the reducing sugar level in control kimchi had decreased by 70% whereas NaCl treatment caused decreases of 45 - 55%. The vitamin C contents of kimchi prepared with addition of NaCl (125.88-145.23 mg/100 g) were higher than that of control (37.22 mg/100 g). In sensory evaluation tests, appearance and texture did not differ significantly with treatment or fermentation period. When taste and overall acceptance were scored, kimchi prepared with the addition of 3% NaCl attained the highest marks throughout the entire fermentation period.
Keywords
kimchi; mashed red pepper; freezing point depressing agents;
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