Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Quality Characteristics of Raw and Cooked Spirulina Added Noodles during Storage

스피루리나를 첨가한 생면과 조리면의 저장 중 품질특성

  • Lee, Yun-Jin (Department of Food & Nutrition, Chungnam National University) ;
  • Wok, Son-Chan (Department of Food & Nutrition, Chungnam National University) ;
  • Kim, Hye-Jeong (Department of Food & Nutrition, Chungnam National University) ;
  • Lee, Jin-Ha (Testing and Analysis Division, Daejoen Regional Korea Food and Drug Administration) ;
  • Kim, Mee-Ree (Department of Food & Nutrition, Chungnam National University)
  • 이윤진 (충남대학교 식품영양학과) ;
  • 손찬욱 (충남대학교 식품영양학과) ;
  • 김혜정 (충남대학교 식품영양학과) ;
  • 이진하 (대전지방식품의약품안전청 시험분석과) ;
  • 김미리 (충남대학교 식품영양학과)
  • Published : 2009.02.28
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Abstract

This study evaluated quality characteristics of spirulina (0.63, 1.25, and 2.5%, all w/w) added noodles during storage at 4C. Total bacterial counts in raw spirulina added noodles were higher than those of the control during storage, but no bacteria were detected in cooked noodles. Escherichia coli was not detected in any group. The weight loss, volume loss, and moisture absorption of spirulina added noodles were somewhat greater than control values. Moisture contents of spirulina added noodles both before and after cooking decreased as the spirulina level increased. During storage, moisture loss from spirulina added noodles was a little greater than from the control. Hunter color values for L (lightness), a (redness), and b (yellowness) decreased during storage. The spirulina added noodles had significantly greater hardness, cohesiveness, gumminess, and chewiness compared with the control. The antioxidant activity of spirulina added noodles increased with spirulina level. A sensory preference test revealed that noodles with 1.25% spirulina received the highest scores for chewiness, overall preference, and buying intention. It is suggested that spirulina could be added to noodles at a concentration of up to 1.25% to improve quality.

본 연구는 국수에 생리활성기능이 뛰어난 스피루리나를 0%, 0.63%, 1.25%, 2.5%가 되도록 첨가하여 복합분으로 생면을 제조.포장하여 냉장($4^{\circ}C$) 저장고에서 10일간 저장 하면서 저장일에 따른 이화학적, 미생물학적, 관능적 변화를 측정하여 제면특성, 관능적 특성 및 저장성에 미치는 영향을 알아보고, 기능성 국수로의 이용 가능성을 검토하고자 하였다. 생면의 저장 중 총균수는 저장기간이 경과함에 따라 증가하였으며, 스피루리나 첨가구가 대조구에 비해 총균수가 많이 검출되었으나 조리후에는 모두 검출되지 않았다. 또한 대장균은 모든 시료에서 검출되지 않았다. 스피루리나 첨가 국수는 조리시 중량 감소율, 부피 감소율, 함수율은 저장일이 증가함에 따라 대조구에 비해 스피루리나 첨가량이 증가할수록 증가하였다. 수분함량은 저장기간이 증가함에 따라 감소하였고, 스피루리나 첨가량이 증가 할수록 감소하였다. 색도는 스피루리나 첨가량이 증가할수록 L값, a값과 b값이 모두 감소하는 경향을 나타내었다. 스피루리나 첨가 국수의 조리 후 경도, 응집성, 검성 및 씹힘성은 밀가루 국수에 비해 첨가량이 증가할수록 유의적으로 높아져 스피루리나 첨가 국수의 조직감이 단단한 것으로 나타났고, 탄력성은 저장 7일부터는 감소하는 경향을 나타냈다. 스피루리나 첨가 농도가 높아질수록 $IC_{50}$ 값이 낮아지는 경향을 나타내었으므로 스피루리나 첨가량이 증가할수록 국수의 항산화능이 높아지는 것을 알 수 있었다. 관능검사결과 1.25%가 면발의 쫄깃함 때문에 면발이 쉽게 불지 않아 전체적인 기호도 및 구입의사에서 유의적으로 높게 평가되었다. 이상의 결과로 볼 때 스피루리나를 첨가한 기능성 국수의 개발이 가능하였고, 스피루리나 첨가량은 1.25% 첨가시 가장 적당하다고 사료된다.

Keywords

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