Quality Characteristics of Cookies added with Kale Powder

케일 분말 첨가 쿠키의 품질특성

  • Received : 2015.04.18
  • Accepted : 2015.06.01
  • Published : 2015.06.30

Abstract

This study investigated the quality characteristics of cookies containing Kale powder, which is well known for its various functions and biological activity. In this study, we assessed the quality characteristics and antioxidant activity of cookies containing various concentrations (0, 3, 5, 7 and 9%) of kale powder(KP). To analyze quality characteristics, density and pH of dough, spread factor, moisture content, color(L, a, b), hardness, DPPH radical scavenging activity and sensory properties were measured. The spread factor and DPPH radical scavenging activity of the cookies significantly increased with increasing concentrations of KP, whereas pH and density of the dough, L value of the cookies significantly decreased. The results of sensory properties showed that cookies made with 3% and 5% KP did not differ significantly from the control in color, taste, and overall quality. Texture scores for the 3% and 5% KP groups ranked significantly higher than those of the other groups. Taken together, the results of this study suggest that KP is a beneficial ingredient for increasing the consumer acceptability and functionality of cookies. The quality characteristics of the 3% and 5% added samples exhibited significantly similar or higher values as compared to those of the controls, raising the possibility of developments in health-functional cookies. The results of the sensory evaluation produced very significant values for color, appearance, texture, and overall quality of instrumental analysis.

여러 가지 기능성과 생리활성을 가지고 있는 케일을 활용하고자 케일 분말을 첨가하여 가능성을 살펴보았다. 본 연구에서는 케일가루 첨가(0, 3, 5, 7, 9%)한 쿠키를 제조하여 쿠키의 품질특성, 밀도, 반죽 pH, 퍼짐성, 수분함량, 색도와 DPPH 라디칼 소거 활성 및 관능 특성을 측정했다. 퍼짐성, DPPH 라디칼 소거 활성은 크게 케일 함유량의 증가와 함께 증가되었다. 케일분말을 첨가 할수록 pH와 반죽의 밀도, 명도 L값은 유의하게 감소하였다. 쿠키의 관능검사에서 쿠키의 색과 맛, 전체적 기호도의 결과는 3%와 5% 첨가군은 유의적인 차이가 없었으나, 7%와 9% 첨가군은 유의적으로 낮아졌다. 전반적인 기호도는 3%와 5% 첨가군이 대조군과 다른 군보다 유의적으로 높았으며(p<0.001), 외관, 향, 맛의 기호도는 케일 가루 첨가량에 따라 낮아지는 경향이었다. 이와 같은 결과로 케일 첨가 쿠키 제조시 품질특성, 항산화성, 기호도 면에서 3%, 5%가 높게 평가되어 케일 쿠키의 관능특징과 건강 기능성 효과 등을 고려할 때 3~5%의 케일 가루를 첨가하는 것이 가장 적절한 것으로 판단된다. 본 연구 분석을 통해 3~5% 케일 분말을 첨가 하였을 때 케일분말 쿠키는 품질, 기호도 측면에서 품질 특성이 높고 건강 기능성을 고려한 충분한 경쟁력이 있을 것으로 생각되며, 케일 분말을 이용한 개발 가능성을 확인할 수 있었다.

Keywords

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