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Effect of Browning Inhibitors on Quality Property of Fresh-Cut Strawberries

갈변억제제 처리가 신선 절단 딸기의 품질 특성에 미치는 영향

  • Chung, Hun-Sik (Food and Bio-Industry Research Institute, Kyungpook National University) ;
  • Moon, Kwang-Deog (Food and Bio-Industry Research Institute, Kyungpook National University)
  • 정헌식 (경북대학교 식품생물산업연구소) ;
  • 문광덕 (경북대학교 식품생물산업연구소)
  • Received : 2011.08.17
  • Accepted : 2011.12.02
  • Published : 2012.02.28

Abstract

The effect of browning inhibitors on quality properties of fresh-cut strawberries was investigated. Half-cut strawberries were treated with dipping solutions alone and with combinations of 1% ascorbic acid, 1% citric acid, 1% sodium chloride, and 1% magnesium chloride, were packaged with low density polyethylene bags, and were kept for 24 hours at $4^{\circ}C$. The levels of oxygen and carbon dioxide in the packages of the samples treated with the combined solutions were the highest and the lowest, respectively. The loss of L value and flesh firmness of fresh-cut strawberries was retarded by the combined solutions than by the dipping solutions alone. The soluble solids and pH were not affected by the browning inhibitor. These results suggest that mixture of ascorbic acid, citric acid, sodium chloride, magnesium chloride may prevent browning and softening of fresh-cut strawberries.

신선절단 딸기의 품질유지에 유효한 갈변억제제의 사용조건을 규명하기 위하여, 원형 딸기를 절단하고 1% 농도의 ascorbic acid, citric acid, sodium chloride, magnesium chloride의 단용 또는 혼용 처리, 포장 및 보관 후 품질 특성을 조사하였다. 포장 내부의 산소와 이산화탄소 농도는 혼용 처리구에서 유의적으로 가장 높고 낮은 수준을 보였다. 갈변도는 혼용 처리구에서 가장 낮았으며, 다음으로 magnesium chloride 단용 처리구에서 낮은 수준을 나타내었다. 과육경도의 감소는 sodium chloride나 magnesium chloride 단용 처리구에서 다소 억제됨을 보였으나 혼용 처리구에서 보다 더 억제되었다. 가용성 고형분 함량과 pH는 갈변억제제 처리의 영향을 나타내지 않았다. 이로써, ascorbic acid, citric acid, sodium chloride, magnesium chloride의 혼용 처리는 신선절단 딸기의 갈변과 연화 억제를 통한 품질유지에 효과적인 방법인 것으로 판단된다.

Keywords

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