Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Sensory properties of Satsuma mandarin by quantitative descriptive analysis

감귤의 묘사적 관능 특성

  • Ku, Kyung Hyung (Research Group of Food Storage and Distribution, Korea Food Research Institute) ;
  • Lee, Kyung-A (Research Group of Food Storage and Distribution, Korea Food Research Institute) ;
  • Choi, Jeong Hee (Research Group of Food Storage and Distribution, Korea Food Research Institute)
  • 구경형 (한국식품연구원 저장유통연구단) ;
  • 이경아 (한국식품연구원 저장유통연구단) ;
  • 최정희 (한국식품연구원 저장유통연구단)
  • Received : 2014.08.05
  • Accepted : 2014.09.03
  • Published : 2015.04.30
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Abstract

This study investigated the sensory attributes of Satsuma mandarins to provide basic data for the establishment of a quality grade establishment of mandarins. Samples of the mandarins in different sizes (small, medium, and large) were collected via organic green house cultivation, conventional cultivation without pesticides and conventional cultivation in Jeju Island. Eight trained panels performed the triplicate measurements. From the results of the quantitative descriptive analysis, mandarin samples were selected with five types of appearances (gloss intensity, color intensity, peel width, damage degree, and peel texture), three types of odors (sour, sweet, fresh), six types of tastes (sour, sweet, bitter, fresh, tasteless, and off flavor) four types of texture (hardness, granule toughness, juicy, and tough feel), and three types of after-tastes (sour, sweet, and bitter). The results of the analysis of the quality characteristics of the samples showed that their, pH, total acidity and solids contents differed depending on the size of the samples more than their cultivation methods. The correlation coefficients between the quality properties of the mandarins showed that their, sample size was positively correlated with their peel width and toughness. Moreover, the soluble solid of sample was positively correlated with its color intensity, sweet and fresh orange flavor. However, soluble solid content of the samples was negatively coreelated with their bitter flavor, tastelessness, and off flavor. In the principal component analysis of the sensory attributes data, PC1 represented the soluble solid, gross intensity, orange color, sour and sweet odor, unique mandarin flavor (sweet and, fresh orange), etc., and PC2 (26.77%) the size, pH, sample acidity, and peel texture.

본 연구는 온주 감귤의 품질 등급 설정을 위한 기초 자료 제공을 위하여 제주 감귤의 묘사적 관능 특성 개발과 재배 방법별 품질 지표간의 상관성을 조사하였다. 제주산 온주 감귤의 훈련된 패널요원에 의해 묘사분석을 한 결과 5개의 외관 특성(광택 강도, 색 강도, 껍질 두께, 손상 정도, 껍질의 조직감), 3종의 냄새(신내, 단내, 신선한 냄새), 6종의 맛(신맛, 단맛, 쓴맛, 신선한 맛, 싱거운 맛, 이미), 4종의 텍스쳐(경도, 알갱이의 경도, 다즙성, 펄프감) 및 3종의 후미(신맛, 단맛, 쓴맛)가 선발되었다. 유기농 하우스재배 및 무농약 노지 재배 감귤과 관행재배 감귤의 품질 특성 중 고형분 함량의 경우 유기농 하우스 감귤의 고형분 함량이 가장 낮았고, 큰 감귤이 작은 감귤보다 고형분 함량이 적었다. 유기농 하우스 재배 귤이 다른 시료에 비해 낮은 pH와 약간 높은 산 함량을 가지고 있었다. 감귤의 품질 특성간의 상관 분석결과 감귤 껍질와 과육을 씹은 후 남는 펄프 함량과 음의 상관관계를 보였다. 고형분 함량은 당산비, 감귤 과피의 색 강도, 단맛, 신선한 감귤맛, 과육 알갱이의 강도, 단 후미와 1% 유의 수준에서 양의 상관관계가 있는 반면 쓴맛, 싱거운 맛, 이미와는 음의 상관관계를 나타냈다. 감귤의 이화학적 및 관능적 품질 특성의 주성분 분석 결과 첫 번째 주성분(F1)과 두 번째 주성분(F2)는 전체 데이터의 48.39%와 26.77%의 설명력을 보여 주었고, 총설명력은 75.16%였다. 주성분 F1은 가용성 고형분함량, 당산비, 과피의 광택 강도, 색 강도, 신향, 단향, 단맛, 쓴맛, 신선한 감귤맛, 싱거운 맛, 이미, 과육 알갱이의 강도, 후미의 단맛과 쓴맛이었고, F2는 감귤의 크기, pH, 산도, 과피의 손상도, 과피의 조직감, 신맛, 과육의 강도, 과육을 씹었을 때 남는 펄프 함량, 후미의 신맛이었다. 또 주성분 F3는 과피의 두께와 다즙성이었다. 즉 동일 지역의 동일 품종으로 재배된 유기농 하우스 재배 감귤과 관행 재배 시료와 전반적으로 이화학적 품질 특성과 관능적 특성에 차이가 있었다.

Keywords

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