Studies on Wilting of Watermelon Stalk during Storage at Low Temperature

저온저장 중 수박꼭지의 시듦에 관한 연구

  • Park Shin (Division of Life and Environmental Science, Daegu University) ;
  • Kang Sun-Chul (Department of Biotechnology, Daegu University)
  • 박신 (대구대학교 생명환경학부) ;
  • 강선철 (대구대학교 생명공학과)
  • Published : 2006.06.01

Abstract

Vaseline, wax, soybean oil, and coated paper label were separately treated on watermelon stalk and stored at $7^{\circ}C$, in order to delay the wilting of watermelon stalk. The result showed that vaseline was most effective to delay the wilting of stalk and coated paper label was best in the outward quality. However wax and soybean oil were not effective. The factors were investigated to affect the wilting of watermelon stalk. Water content of watermelon stalk were closely related to the wilting of stalk but bacterial density of watermelon stalk was not significant. The shelf life of watermelon stalk was compared with that of watermelon flesh. The result showed that watermelon stalk was more rapidly wilted than watermelon flesh. Therefore this method was applied to prove the wilting property of watermelon stalk to determine the quality of watermelon flesh.

수박꼭지의 시듦 현상을 지연시키기 위해 수박꼭지에 바셀린, 왁스, 대두유, 접착라벨지 등을 처리한 후 $7^{\circ}C$ 저온에서 저장한 결과, 수박꼭지에 바셀린을 발랐을 때 시듦이 가장 지연되었고, 접착라벨지를 처리한 경우 외관상 상품성이 가장 우수하였다. 왁스와 대두유의 경우 개선효과가 없었다. 수박꼭지의 시듦에 미치는 요인을 조사하였는데, 수박꼭지의 수분함량은 수박꼭지의 시듦과 밀접한 관계가 있었으며, 수박꼭지의 수분함량이 높을수록 수박꼭지의 시듦은 지연되었다. 반면 일반 세균의 경우 어떤 유의성도 없었다. 수박꼭지의 저장수명과 수박과육의 저장수명을 비교한 결과, 수박꼭지의 시듦 현상이 수박과육의 부패 현상보다 빨리 진행되어 수박꼭지의 시듦이 수박의 상품성을 판단하는 하나의 방법임을 밝혔다.

Keywords

References

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