Effect of Blanching on the Quality Characteristics of Dandelion (Taraxacum platycarpum D.) Kimchi

민들레 김치의 품질 특성에 미치는 데치기 효과

  • Park In-Kyung (Dept. of Food Science and Technology, Faculty of Food Industry and Technology, Catholic University of Daegu) ;
  • Kim Soon-Dong (Dept. of Food Science and Technology, Faculty of Food Industry and Technology, Catholic University of Daegu)
  • 박인경 (대구가톨릭대학교 식품산업학부 식품공학전공) ;
  • 김순동 (대구가톨릭대학교 식품산업학부 식품공학전공)
  • Published : 2005.04.01

Abstract

This study was conducted to investigate the effect of blanching on the quality characteristics of dandelion Kimchi. Experimental groups were divided BT-group (dandelion was blanched in the $3\%$ brine for 15 seconds at $100^{\circ}C$, then salted in $8\%$ brine for 5 hours) and NT-group (dandelion was salted at $8\%$ brine for 5 hours). Changes in pH, acidity, color, number of total microbe and lactic acid bacteria, antioxidant activity and sensory quality were investigated during the fermentation at $10^{\circ}C$. The pH of the BT- and NT-Kimchi maintained higher than 4.1 for 21-days fermentation, but that of BT-Kimchi was lower than that of NT-Kimchi. And also, the titrable acidity of BT-Kimchi was maintained higher than that of NT-Kimchi. $L^\ast\;value\;and\;b^\ast$ value of BT-Kimchi were higher, while $a^\ast$ value of BT-Kimchi was lower than that of NT-Kimchi. There was no significantly difference in total microbial count between BT- and NT-Kimchi, while number of the lactic acid bacteria in the BT-Kimchi was higher than that of BT-Kimchi. There was no significant difference in the antioxidant activity between BT- and NT-group during the fermentation. In the results of sensory evaluation of the dandelion Kimchi, toughness, color, flavor and overall quality were good in the BT-Kimchi, while the bitter taste showed relatively strong in the NT-Kimchi.

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