Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Effects of Cutting Methods on Qualities of Fresh-Cut Apples and Leafy Vegetables

절단방법이 신선절단 사과와 엽채류의 품질에 미치는 영향

  • 정헌식 (경북대학교 식품생물산업연구소) ;
  • 정문철 (한국식품연구원) ;
  • 문광덕 (경북대학교 식품생물산업연구소)
  • Received : 2011.12.12
  • Accepted : 2012.03.16
  • Published : 2012.04.30
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Abstract

Whole apples were cut with a sharp or dull knife, and whole cabbages and crisp lettuce heads were cut into salad or thin strips with a knife or by hand. The fresh-cut apples, cabbages, and lettuce were packed in low-density polyethylene bags and kept at $4^{\circ}C$, and their qualities were investigated. Browning and softening of the apples that were cut with a sharp knife were more delayed than those of the apples that were cut with a dull knife. The soluble solids and pH of the fresh-cut apples were not affected by the sharpness of the cutting blade. The browning indexes of the fresh-cut cabbages and lettuce were significantly lower in the samples that were cut with a knife than by hand and in the samples that were cut into large pieces. The results suggest that the cutting blade sharpness, cutting tools, and cut types affected the quality of the fresh-cut apples and leafy vegetables, and that the cutting methods which minimized the cutting damage should be used to retard the browning and softening of the produce.

신선절단 사과와 엽채류의 품질에 절단방법이 미치는 영향을 구명하기 위하여, 사과는 sharp knife나 dull knife로 절단하고, 양배추와 결구상추는 hand나 knife cutting 및 knife로 샐러드용 크기나 채썰기로 절단하고 각 절단품의 품질특성을 비교 조사하였다. 신선절단 사과의 갈변도와 과육경도는 dull knife보다 sharp knife로 절단한 경우에 유의적으로 낮고 높게 유지되었다. 반면에 신선절단 사과의 가용성 고형분 함량과 pH는 절단용 칼날의 날카로움에 따른 유의적인 차이를 보이지 않았다. 신선절단 양배추와 결구상추의 갈변도는 hand cutting보다 knife cutting에서, 샐러드용 크기보다 세절인 채썰기한 경우에서 유의적으로 낮은 수준을 나타내었다. 이로써, 신선절단품 제조시 조직손상을 크게 하는 절단방법이 사과의 갈변과 연화를, 양배추와 결구상추의 갈변을 촉진시키는 것으로 확인되었고, 고품질 제품을 위해 조직손상을 최소화할 수 있는 기술이 적용되어야 할 것으로 판단된다.

Keywords

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