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Quality and shelf life of noodles containing onion powder

양파분말을 첨가한 국수의 품질과 저장성

  • Kim, Yo Sep (Department of Food Science and Technology, Catholic University of Daegu) ;
  • Park, Na Young (Department of Food Science and Technology, Catholic University of Daegu) ;
  • No, Hong Kyoon (Department of Food Science and Technology, Catholic University of Daegu)
  • 김요셉 (대구가톨릭대학교 식품공학전공) ;
  • 박나영 (대구가톨릭대학교 식품공학전공) ;
  • 노홍균 (대구가톨릭대학교 식품공학전공)
  • Received : 2016.01.12
  • Accepted : 2016.02.29
  • Published : 2016.04.30

Abstract

The quality and shelf life of noodles containing onion powder (0, 3, 5, and 10%) were investigated. The pH of raw noodles decreased by increasing the concentration of onion power. The weight, volume, and water absorption of the cooked noodles were comparable, irrespective of onion powder concentrations. Color L and a values of raw noodles decreased, while b value increased by addition of onion powder. However, no considerable differences in color values were observed among the control and onion noodle groups after cooking (p<0.05). The total polyphenol contents and DPPH radical scavenging activities of raw and cooked noodles increased with increasing onion powder concentrations, although the latter had lower values. In the aspect of texture, the control group showed higher hardness and chewness than those of noodle containing onion powder, except for springiness. The results of raw noodle storage at $10^{\circ}C$ for 12 days indicated that raw onion noodles, especially those with 5% onion powder added, could be preserved for at least 6 days longer than the control noodle. In the sensory evaluation of cooked noodles, no significant differences in appearance, taste, flavor, texture and overall acceptability were observed between the control and onion noodle groups. This study indicates that the addition of 5% onion powder could improve the functionality and shelf life of noodles.

본 연구에서는 기능성 부여와 저장성이 증진된 국수를 개발하고자 양파분말을 국수에 첨가(0, 3, 5, 10%)한 후 품질특성과 저장성을 조사하였다. 양파 생면의 수분은 양파분말 첨가량의 증가에 따른 차이는 없었으나 pH는 감소하였다. 양파 생면의 조리 후 중량과 부피, 수분흡수율은 대조구와 양파분말 첨가군 간에 차이가 없었다. 색의 경우 생면은 양파분말 첨가량이 증가할수록 L값과 a값은 감소하고 b값은 증가하였으나 조리면은 큰 차이를 나타내지 않았다. 생면의 총 폴리페놀 함량과 DPPH radical 소거능은 양파 분말 첨가량이 증가함에 따라 증가하였으며 조리후에는 함량이 전체적으로 감소하였으나 생면과 동일한 경향을 나타내었다. 양파 조리면의 조직감의 경우, 경도와 씹힘성은 대조구가 양파 첨가군에 비해 높게 나타났으나 탄력성은 대조구와 양파분말 첨가군 간에 차이가 없었다. 생면을 $10^{\circ}C$에서 12일간 저장하면서 총균수를 측정한 결과 양파분말 첨가군은 대조구에 비하여 저장성이 최소 6일 이상 연장될 수 있었으며 그 중 양파분말 5% 첨가구가 가장 효과적인 것으로 간주되었다. 양파 조리면의 관능검사 결과 외관, 맛, 냄새, 조직감 및 전체적인 기호도는 대조구와 양말분말 첨가군 간에 차이가 없었다. 따라서 본 연구결과로 볼 때 양파분말을 국수에 5% 첨가함으로서 기능성 부여와 저장성이 증진된 국수를 개발할 수 있으리라 생각된다.

Keywords

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