Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Quality characteristics of cut kimchi cabbage during short-term storage depending on the packaging materials

절단배추의 포장재질에 따른 단기 저장 중 품질특성

  • Son, Eun Ji (School of Food Science and Biotechnology, Kyungpook National University) ;
  • Hwang, In-Wook (Food and Bio-Industry Research Institute, Kyungpook National University) ;
  • Chung, Shin-Kyo (School of Food Science and Biotechnology, Kyungpook National University)
  • Received : 2015.07.16
  • Accepted : 2015.09.21
  • Published : 2015.10.30
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Abstract

Fresh cut vegetables provide convenience and rapidity to consumers. However, they have a weakness with respect to their short shelf-life due to browning and quality degradation via increased respiration. To overcome this problem, the effect of packaging film on the short-term storage of cut kimchi cabbages was investigated. Polypropylene (PP), oriented polypropylene (OPP), and low-density polyethylene (LDPE) films were used as packaging film, and cut kimchi cabbages were stored in the packaging films at $5^{\circ}C$ for 4 weeks. PP film packaging showed the least weight loss and soluble solids loss after 4 weeks. Titratable acidity increased during storage for all samples, however, the increase rate of titratable acidity in PP and OPP film packaging decreased, which was lower than that of LDPE film packaging. Color values decreased over time during storage. In appearance, PP film packaging was better than other films due to their high transparency. In a sensory test, there was no statistical difference among samples. Taken together, the transparent PP film packaging was more effective for short-term storage of cut kimchi cabbages. Thus, this study provides useful information for the selection of packaging materials for cut kimchi cabbage marketing.

절단 배추의 포장재에 따른 저장 중 품질변화를 알아보기 위해 배추($3{\times}3cm$)를 PP film, OPP film, LDPE film백에 각각 넣은 후 $5^{\circ}C$에서 4주 동안 저장하면서 저장 특성을 조사하였다. 중량은 0.03~0.24%의 범위로 감소하였으며, PP film 포장구가 가장 낮은 감소율을 보였다. 가용성 고형분 함량은 $0.03{\sim}0.2^{\circ}Brix$의 범위로 감소하였으며, PP film 포장구가 낮은 감소율을 보였다. 적정산도는 모든 처리구에서 증가하다가 감소하는 경향을 나타냈으나, PP film과 OPP film 포장구의 증가율이 낮았다. 색도값은 저장기간이 길어질수록 전체적으로 감소하였으나, 포장재에 따른 유의적인 차이는 나타나지 않았다. 관능검사 결과 역시 포장재에 따른 유의적인 차이가 나타나지 않았으나, 외관상 품질특성은 PP film 포장구가 다른 포장보다 우수하였다. 따라서 투명한 PP film으로 절단배추를 포장하여 저장 및 유통하는 것이 선도 및 품질 유지에 효과적이라고 사료된다.

Keywords

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