Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Effect of Packaging Methods on Postharvest Quality of $Tah$ $Tasai$ Chinese Cabbage ($Brassica$ $campestris$ var. $narinosa$) Baby Leaf Vegetable

어린잎 채소 다채의 포장방법이 품질에 미치는 영향

  • Received : 2011.07.19
  • Accepted : 2011.12.16
  • Published : 2012.02.28
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Abstract

The effect of the packing methods for enhancing the shelf life and improving the postharvest quality of the $tah$ $tasai$ Chinese cabbage baby leaf vegetable was studied during storage. Fresh baby leaf vegetables were packed in four commercial packaging types: (1) a non-perforated bag with a 0.03-mm oriented polypropylene (OPP) film; (2) a perforated bag with 1.0-mm-diameter holes on an OPP film; (3) a 0.40-mm polyethylene terephthalate (PET) container with a hinged lid; and (4) an expanded polystyrene (EPS) tray wrapped with a 0.02-mm polyvinyl chloride (PVC) film. The quality parameters, such as the weight loss, moisture content change, color difference, and appearance of the baby leaf vegetables were investigated. The baby leaf vegetables in the PET container and in the non-perforated OPP film bag showed relatively low weight loss, high moisture content, and good external appearance compared to those in the EPS tray and in the perforated OPP film bag during limited storage periods, at $16^{\circ}C$. The PET container also protected the baby leaf vegetables from physical damage. The study results will enable the selection of a better packaging system for extending the freshness and increasing the market ability of baby leaf vegetables.

유통현장에서 다양한 포장형태로 이용되는 어린잎 채소의 포장 방법별 선도유지 효과를 구명하고자 하였다. 현장에서 이용되는 대표적인 소포장 형태별로 다채를 $16^{\circ}C$에 저장하면서 중량변화, 수분 함유량, 가스조성, 외관품위 등을 측정하였다. 포장형태에 따른 중량변화는 밀폐 정도가 큰 PET 용기 포장(밀폐형)과 OPP 무공필름 포장에서 적었으며, 외관의 변화 정도도 적어 비교적 높은 상품성을 유지한 것으로 나타났다. 그러나 무공의 OPP 필름으로 저장한 경우 색상변화 정도가 커서, 포장 시 이에 대한 고려도 필요할 것으로 생각된다. 본 실험의 결과, 밀폐 정도가 크고, PET와 같은 경질 필름 형태로 저장하는 것이 상품성 유지에 효과적인 것으로 나타났으며, 포장 형태의 천공 정도가 큰 것은 상품성을 저하시키는 것으로 나타났다. 어린잎 채소의 포장 방법에 대한 연구는 많이 있으나 유통현장에서 활용이 많이 미흡한 실정으로 본 실험 결과를 통해 어린잎 채소를 효과적으로 상품성을 보존할 수 있는 방법 검토시 도움이 되리라 생각된다.

Keywords

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