Culinary science and hospitality research (한국조리학회지)

Culinary Society of Korean Academy (한국조리학회)
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Quality Characteristics of Korean Rice Cakes (Karedduk) with a Mixture of Fructooligosaccharide and Modified Starch

프락토올리고당과 변성전분 혼합사용 떡의 품질 특성

  • Received : 2015.06.08
  • Accepted : 2015.08.11
  • Published : 2015.08.31
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Abstract

The quality characteristics of Korean rice cakes (Karedduk) with a mixture of fructooligosaccharide (95%) and AA (acetylated adipate distarch) added, after 2 and 24 hours of storage at $5^{\circ}C$, were investigated. A central composite design was used for arrangement of treatment. Different levels of fructooligosaccharide (95%), 0, 3, 6, 9, and 12%, were added to dry rice flour. In addition, different levels of AA, 0, 0.3, 0.6, 0.9, and 1.2%, were added to the same dry rice flour. The texture properties analysis using a Texture Analyzer revealed that the springiness, cohesiveness, chewiness, gumminess, adhesiveness, and hardness were significantly different. The effect of retarding retrogradation of Korean rice cakes (Karedduk) with added mixtures of fructooligosaccharide (95%) and AA showed an increasing trend as the amount of fructooligosaccharide (95%) and AA increased. Overall, the instrumental texture properties were highly correlated with the sensory characteristics. These results suggest that adding a mixture of 6% fructooligosaccharide (95%) and 1.2% AA to Korean rice cakes (Karedduk) is effective for retarding retrogradation.

본 연구는 프락토올리고당(95%)과 변성전분 AA의 혼합사용 떡의 노화 억제 효과 분석을 위하여 중심합성계획법에 따라 쌀가루 기준으로 프락토올리고당(95%)은 0, 3, 6, 9 또는 12% 농도로 첨가하고, AA 전분은 0, 0.3, 0.6, 0.9 또는 1.2% 농도로 혼합사용하여 제조한 떡을 $5^{\circ}C$에서 냉장 보관하면서 제조시간 2시간과 24시간 경과 후 기계적 텍스처 특성과 관능적 묘사 특성을 분석하였다. 기계적 텍스처 변화에서 제조 2시간 후 탄성, 응집성, 씹힘성, 검성, 부착성 및 경도 등 모든 텍스처 특성에서 각 실험군 간의 차이가 있었다(p<0.001). 제조 24시간 후 탄성을 제외한 응집성, 씹힘성, 검성, 부착성 및 경도 등에서 각 실험군 간의 차이가 있었고(p<0.001), 프락토올리고당(95%) 6%와 AA 전분 1.2% 수준으로 혼합 첨가하면 텍스처 경도가 가장 낮게 측정되었다. 관능적 특성에서는 제조 2시간과 24시간 후 AA 전분의 함량이 높을수록 경도는 감소하고, 프락토올리고당(95%)의 함량이 높을수록 단맛은 증가하는 경향을 보여주었으며, 가래떡 제조 24시간 후 프락토올리고당(95%) 6%와 AA 전분 1.2% 수준으로 혼합 첨가하면 경도가 가장 낮게 조사되었다. 텍스처 변화와 관능적 특성 간의 상관관계를 분석 결과 모든 기계적 텍스처 특성은 관능적 특성 중 부착성, 경도 및 응집성과 높은 상관관계를 나타내었다(p<0.001). 따라서 프락토올리고당(95%)과 변성전분 AA의 혼합사용의 경우 프락토올리고당(95%) 6%와 AA 전분 1.2% 농도 수준으로 혼합 첨가하면 저장 중 떡의 노화 억제에 효과가 있는 것으로 나타났다.

Keywords

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