Culinary science and hospitality research (한국조리학회지)

Culinary Society of Korean Academy (한국조리학회)
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Quality Characteristics of Jelly added with Peach(Prunus persica L. Batsch) Powder

복숭아 분말 첨가 젤리의 품질특성

  • Received : 2016.02.20
  • Accepted : 2016.04.01
  • Published : 2016.04.30
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Abstract

This study investigated the quality characteristics of jelly containing peach powder, which is well known for its various functions and biological activity. The feasibility of incorporating peach powder as a value-added food ingredient, using a model food system of jelly, was investigated. Peach powder was incorporated into jelly at 0, 5, 10, 15, and 20% levels. To analyze quality characteristics, pH of the jelly, spread factor, moisture content, color(L, a, b), hardness, DPPH radical scavenging activity, and sensory properties were measured. Qualities, such as pH content, color, hardness, and consumer preferences were determined. Lightness decreased, but redness and yellowness increased significantly (p<0.001). The antioxidative activity measured by DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity of the jelly increased as the concentrations of peach powder increased. Lastly, the consumer acceptance test indicated that the highest level of incorporation (15%) had a considerable adverse effect on consumer preferences in all attributes. The jelly with 15% peach powder is recommended (with respect to overall preference score) for taking advantage of the functional properties of peach powder without sacrificing consumer acceptability.

본 연구에서는 복숭아 분말의 첨가량을 달리하여 젤리를 제조한 후 젤리의 물리화학적 품질특성(pH, 색도, 외관색상, 경도)과 소비자 기호도(색, 향미, 씹힘성, 맛, 전체적 기호도)를 비교 분석하였다. 젤리의 pH는 증가하였다(p<0.001). 명도를 나타내는 $L^*$값은 복숭아 분말의 첨가량이 증가할수록 유의적으로 감소하였고(p<0.001), 적색도를 나타내는 $a^*$값과 황색도를 나타내는 $b^*$값은 유의적으로 증가하였다(p<0.001). 복숭아 분말 첨가 젤리의 DPPH 라디칼 소거능에 대한 결과는 복숭아 분말 첨가량이 많을수록 DPPH 라디칼 소거능이 증가하였다. 소비자 검사결과, 15% 첨가군이 모든 평가항목에서 유의적으로 높은 평가를 받아 젤리의 관능적 품질을 최대한 유지하면서 복숭아 분말의 기능적 이점을 최대한 활용하기 위한 젤리의 최적첨가 농도는 15%가 가장 적합한 것으로 판단된다.

Keywords

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