Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Understanding the Sensory Characteristics of Various Types of Milk Using Descriptive Analysis and Electronic Nose

묘사분석 및 전자코 분석을 이용한 다양한 시유의 관능적 품질 특성 이해

  • Chung, Seo-Jin (Department of Food and Nutrition, Seoul Women's University) ;
  • Lim, Chae-Ran (Department of Food Science and Technology, Seoul Women's University) ;
  • Noh, Bong-Soo (Department of Food Science and Technology, Seoul Women's University)
  • 정서진 (서울여자대학교 식품영양학과) ;
  • 임채란 (서울여자대학교 식품공학과) ;
  • 노봉수 (서울여자대학교 식품공학과)
  • Published : 2008.02.28
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Abstract

The objectives of this study were: 1) to develop the sensory lexicons of milk marketed in Korea, 2) to investigate the effects of pasteurization and milk composition on the sensory qualities of milk, and 3) to evaluate the correlation between descriptive analysis and the electronic nose method. Electronic nose and descriptive analyses were conducted to analyze the sensory characteristics of 14 milk samples. The 14 samples were provided from 4 manufacturers with different pasteurization methods, and varied in fat, calcium, and lactose content. Twenty-six sensory lexicons were developed to describe the sensory characteristics of the samples. The low temperature, long-time processed milk had a distinctive 'bi-rim' flavor regardless of the milk composition. The lactose-free milks were sweet, and the low-fat milks had relatively low intensities for most flavor attributes. The electronic nose method successfully grouped the milk samples primarily based on their composition, but grouped them weakly by pasteurization method.

본 실험에서 도출된 백색시유의 묘사 용어는 4개사의 전지유, 저지방 우유, 칼슘 강화유, 유당 분해유 등 다양한 종류의 백색시유를 분석하여 국내에서 선행된 우유의 관능적 품질에 대한 연구에 비해 백색시유에서 감지 될 수 있는 다양한 묘사 용어가 도출되어 향후 국내 우유의 관능적 품질 특성 연구 시 유용한 참고자료가 될 것이라고 판단된다. 백색시유의 휘발성 향성분에 대한 전자코 분석 결과 우유의 지방 조성, 칼슘 강화 여부 및 유당 분해 여부에 따라 우유 군이 분리되었으나 살균 공정에 따른 차이는 미미하게 나타났다. 반면 묘사분석에서는 칼슘 강화유와 일반 전지유의 관능적 특성 차이는 작았으나 지방 조성이나 유당 분해 여부, 살균 공정 방법에 따란 관능적 특성이 차이가 유의적인 것으로 분석되었다. 전자코 분석과 묘사분석의 상관성 연구에서는 유당 분해유에 특징적인 향미였던 단맛과 생크림 향미는 sensor 2와 강한 양의 상관관계를 보였고 휘발성 황화합물을 감지할 수 있는 sensor 1은 익은 우유 향미와 양의 상관관계를 나타냈다.

Keywords

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