The aim of this study is to investigate the relationship between the sensory characteristics and protein concentration of enzymatically hydrolyzed isolated soy protein. As a result of QDA, 34 attribute descriptors were developed. According to the results of the flavor profile, the strengths of most color and tastes except sourness were evaluated before activated carbon treatment sample. Principal component analysis (PCA) was performed to summarize the relationship between attributes and samples. The result of PCA was 56.35% (F1) and 35.05% (F2), having explained 94.13% in total variablility. In case of the untreated sample of active carbon, it was located in the first quadrant and correlated with color, flavor, a slightly salty taste, and a slightly bitter taste. It also showed high correlation with meju taste. The activated carbon treatment samples were located in the second quadrant and correlated with delicate taste, slight saltiness, sourness, and umami, having high correlation with burned rice.

High pressure and enzymatic hydrolysis was applied to anchovy in order to produce a natural seasoning salt enhancer. The purpose of this study is to investigate the relationship between the sensory characteristics and protein concentration of enzymatic hydrolysates with anchovy. According to the results of QDA, 24 attribute descriptors were developed. Based on the flavor profile, the strengths of most tastes, except sourness, color flavor, and odor were evaluated before activated carbon treatment. Principal components analysis (PCA) was performed to summarize the relationship between attributes and samples. The result of PCA was F1 72.13% and F2 22.01%, having explained 94.13% in total variability, as F1 was shown according to the correlation about activated carbon treatment before or after samples. The characteristics of color, flavor/odor, and saltiness or bitter taste had higher correlation before activated carbon treatment samples. Also, F2 was shown to have no correlation to the samples.

The objective of this study was to determine sensory profiles of rice confections. The samples used in this study obtained from Korea (traditional Korea rice snack and local specialty rice snack) and three countries (USA, Japan, and China) were evaluated and compared. The sensory characteristics of five kinds of rice confections were evaluated using a sensory test and were analyzed via quantitative description analysis (QDA), principal component analysis (PCA), and hierarchical cluster analysis (HCA). In the descriptive analysis, 10 trained panelists evaluated sensory characteristics consisting of 19 attributes, and there were significant differences (p<0.05) among the 16 characteristics. For the descriptive data, multivariate analysis of variance was carried out and identified differences among the samples. The PCA of rice confections for the first two principal components could explain 85.66% of the variations. The Korean, Japanese, and Chinese rice confections were savory, gritty, and particle-sized, the other Korean local specialty rice confections were fruity, sweet, honey-flavored, compact, and crispy, and those from the USA were glossy, grainy, bright, adhesive, cohesive, crispy, and sweet.

이 연구에서는 식빵의 표준 묘사분석 절차를 확립하였으며, 그 결과, 식빵에서 23가지의 특성 묘사 용어를 선정하고 개발하였으며 평가 절차를 확립하였다. 개발된 표준 묘사분석 방법을 이용하여 숙성온도와 배합비가 다른 4종류의 식빵에 대해 관능적 특성을 평가한 결과, 4종류의 식빵 간에는 23개의 관능적 특성에서 모두 유의전인 차이(p<0.05)가 있었다. 따라서 이 실험에서 개발된 식빵의 특성 용어와 그 정의 및 평가 기술이 종류가 다른 식빵의 관능적 특성의 차이를 잘 설명탈 수 있음을 알 수 있었다. 앞으로 이와 같은 연구 결과가 식빵의 품질향상에 기여할 수 있으려면, 원료와 제조 방법에 따른 식빵의 품질평가에 묘사 분석이 적용되고, 이 결과와 소비자 기호도 검사 또는 기계적 측정 결과와의 상관관계를 분석하는 연구가 지속적으로 이루어져야겠다.

This study was carried out to determine the descriptive sensory profile of oriental melon. The sensory profile of oriental melons (cultivated in Seonju, Kyungsangbuk-do) were used quantitative descriptive analyses and twelve trained panel developed the total forty sensory attributes related appearance, aroma, texture etc. Six appearances attributes and two aromas attributes were derived from whole oriental melon with skin. Five aromas, six tastes and six textures were derived from the mesocarp of oriental melon. And also, oriental melons were analyzed for pH, titratable acidity, solid soluble contents and weight. The weight, titratable acidity and soluble solid content of oriental melons showed significant differences according to samples. And also, in the sensory attributes of these samples by trained panel and consumer test, there were significant differences between organic cultivated samples and conventional cultivated samples. Based on principal component analysis of sensory attributes data by trained panel and consumer, oriental melons were primary separated along the first principal component, which accounted for 27.73% (trained panel test) and 19.82% (consumer test) of total variance (trained panel test; 58.36%, consumer test; 46.18%) between the samples farm, cultivation method, total acidity, sweet aroma, bitterness, etc. Generally, whole oriental melon with skin showed significant differences in the sensory attributes according to cultivation method and farms. But, the mesocarp and endocarp part showed not certainly differences in the sensory attributes between organic cultivated samples except conventional cultivated samples.

본 연구는 온주 감귤의 품질 등급 설정을 위한 기초 자료제공을 위하여 제주 감귤의 묘사적 관능 특성 개발과 재배방법별 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 상관분석결과 감귤 껍질와 과육을 씹은 후 남는 펄프 함량과음의 상관관계를 보였다. 고형분 함량은 당산비, 감귤 과피의 색 강도, 단맛, 신선한 감귤맛, 과육 알갱이의 강도, 단후미와 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 광택강도, 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 펄프함량, 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