The Sensory and Texture Characteristics of Julpyun and Sulgidduk in according to Concentrations of Greentea Powder

녹차분말 첨가량에 따른 절편과 설기떡의 기호도 및 품질 특성

This study was conducted to aerermine the sensory evaluation and the texture characteristics after making greentea Sulgidduk and Julpyun added to greentea powder in according to concentration which has nutritive value and medical effect of white Sulgidduk and Julpyun traditional dduk. Greentea Julpyun was better evaluated than Sulgidduk in color, flavor, hardness, chewiness and overall quality as the result of the sensory evaluation. In the whole sensory Julpyun was highly evaluated at the 3% of concentration of greentea powder but Sulgidduk was highly evaluated at 7% as the concentration of the greentea powder was getting stronger and stronger. In case of texture analysis hardness, cohesiveness, gumminess and chewiness of greentea Julpyun were getting lower by increase of concentration of greentea powder. The hardness, springiness, gumminess and chewiness of greentea Sulgidduk were lower by increase of concentration of greentea too. As the result of the measurement with texture analyser, Sulgidduk was lower than greentea Julpyun in the hardness, springiness, cohesiveness, gumminess and chewiness. As the result of the values of Hunter color system, the lightness and redness of greentea Julpyun were the lowest when nothing was added. The lightness and redness of greentea Sulgidduk were the highest in nothing added group. The yellowness was the highest at 3% of added greentea amount The resuts of correlation between the sensory properties and texture properties of greentea Julpyun showed that flavor described the lightness of measurement through texture and negative correlation, yellowness described positive correlation.

전통적인 백설기와 절편에 영양적 가치와 약리적 효능이 우수한 녹차분말을 농도별로 첨가하여 녹차설기떡과 절편을 제조한 후 관능검사와 조직감의 특성을 비교 검토하였다. 전반적인 기호도에서 절편은 녹차분말 농도의 3%에서 가장 좋게 평가되었으나 설기떡에서는 녹차분말의 농도가 높을수록 기호도도 높아져서 7%일 때 가장 좋게 평가되었다. 기계적 측정에서 녹차절편은 경도, 응집성, 검성, 씹힘성은 녹차분말의 농도가 증가할수록 낮아졌으며, 녹차설기떡도 경도, 탄력성, 검성, 씹힘성에서 녹차분말 농도의 증가에 따라 감소하였으며 유의적(p＜0.001)인 차이를 나타내었다. 그러나 녹차절편에서의 탄력성, 녹차설기떡의 응집성은 유의적인 차이가 없었다. 색도는 녹차절편의 명도(L)와 적색도(a)는 무첨가군이 가장 높았고 황색도(b)는 무첨가군이 가장 낮았다 녹차설기떡의 명도(L)와 적색도(a)는 무첨가군, 황색도(b)는 녹차 첨가량 3%에서 가장 높았다. 녹차절편의 관능검사와 기계적 측정의 상관관계에서는 관능검사의 향미는 기계적 측정의 명도(L)와 부적 상관관계, 황색도(b)는 정적 상관관계를 나타내었다. 녹차설기떡은 관능검사의 맛의 기호도와 기계적 검사의 탄력성과 부적 상관성을 나타내었다.