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Quality Characteristics of Dried Shredded Radish and Stir-fry Dried Shredded Radish by Different Drying Methods

건조조건이 다른 무채말랭이 및 무채말랭이 볶음의 품질특성

  • Kim, Ji-Na (Department of Agrofood Resources, National Academy of Agricultural Science, RDA) ;
  • Park, Young-Hee (Department of Agrofood Resources, National Academy of Agricultural Science, RDA) ;
  • Noh, Yun-Young (Department of Agrofood Resources, National Academy of Agricultural Science, RDA) ;
  • Kim, Young (Department of Agrofood Resources, National Academy of Agricultural Science, RDA) ;
  • Kang, Min-Sook (Department of Agrofood Resources, National Academy of Agricultural Science, RDA)
  • 김지나 (농촌진흥청 국립농업과학원) ;
  • 박영희 (농촌진흥청 국립농업과학원) ;
  • 노윤영 (농촌진흥청 국립농업과학원) ;
  • 김영 (농촌진흥청 국립농업과학원) ;
  • 강민숙 (농촌진흥청 국립농업과학원)
  • Received : 2015.09.14
  • Accepted : 2015.10.15
  • Published : 2015.10.31

Abstract

This study investigated changes in the chemical properties and antioxidant activity of dried shredded radish (Raphanus sativus L.). Shredded radishes with a thickness of either 3.5 mm or 7.0 mm were dried using hot air at $45^{\circ}C$ or were sun dried. The degree of browning for the 3.5 mm sun dried radish, the 7.0 mm sun dried radish, the 3.5 mm hot air dried radish and the 7.0 mm hot air dried radish was 0.12, 0.14, 0.04 and 0.04, respectively. The DPPH radical scavenging activity (EDA%) of the hot air dried radish had a higher value than the sun dried radish. In contrast, the ABTS values of the sun dried radishes were higher than the hot air dried radishes. The total polyphenol content of the 7.0 mm and 3.5 mm hot air dried radishes reached high values of 15.99 and 11.62 mg/g, respectively. The total polyphenol contents of the 7.0 mm and 3.5 mm sun dried radishes were 9.63 and 6.77 mg/g, respectively. In sensory evaluation of the stir-fry dried shredded radishes, the 7.0 mm hot air dried sample scored the highest in terms of smell, color, gloss and overall preference. In conclusion, hot air drying ($45^{\circ}C$) and a thickness of 7.0 mm were found to be the optimal conditions for dried shredded radish and stir-fried dried shredded radish products.

Keywords

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