Changes in Fruit Quality of Hallabong Tangor (Citrus kiyomi ${\times}$ ponkan) by Film Packaging during Storage

포장재 처리에 따른 한라봉 감귤의 저장 중 품질변화

  • 이상협 (제주대학교 생명공학부) ;
  • 김종현 (제주대학교 생명공학부) ;
  • 정희찬 (제주대학교 생명공학부) ;
  • 고정삼 (제주대학교 생명공학부)
  • Published : 2008.04.28

Abstract

We investigated changes in fruit quality of Hallabong tangor (Citrus Kiyomi ${\times}$ ponkan) that was packaged with Si+CaO and LDPE film. The flesh ratio during storage was 74.33% (${\pm}3.66$) to 81.56% (${\pm}1.38$). Firmness of M16A, a variant of Hallabong tangor, was higher 100g-force than that of Hallabong tangor, changes of firmness was not shown among film packages. A fruit juice was $12-14^{\circ}$Brix, and this increased somewhat at the end of storage without film packaging. The titratable acidity of the M16A variety was 0.2% lower than that of the Hallabong tangor. Hallabong and M16A maintained freshness and taste for 120 and 60 days, respectively. The level of reducing sugars in the Hallabong tangor was 1% higher than that of the M16A variety. Reducing sugars increased at room temperature storage without film packaging. Total sugar content was 9.19% (${\pm}2.03$) to 12.78% (${\pm}0.75$). The content of vitamin C declined slowly after 105 days of storage. In conclusion, storage of Hallabong tangor with film packaging coated with Si+CaO was effective for maintaining freshness and quality.

한라봉감귤의 Si+CaO 혼합필름포장과 LDPE 필름포장에 따른 저장 중에 품질변화를 검토하였다. 과육율은 포장처리와 무처리에서 $74.33{\pm}3.66{\sim}81.56{\pm}1.38%$로 저장기간에 따른 한라봉과 M16A의 과육율의 변화가 없었으며, 무처리에서 저장 후기 약간의 증가를 보였다. 경도는 M16A가 한라봉보다 100 g-force 정도 높은 값을 보였으며, 포장재처리에 따른 큰 변화는 보이지 않았다. 가용성고형물은 한라봉과 M16A 모두 $12-14^{\circ}$Brix였으며, 무포장처리에서 저장 후기에 약간의 증가를 보였다. 산 함량은 M16A가 한라봉보다 0.2% 정도 낮은 함량을 보였다. 소비자의 기호에 알맞은 저장을 하기 위해서는 한라봉은 120일, M16A는 60일 이내로 저장하는 것이 알맞다고 판단된다. 환원당은 한라봉이 M16A보다 1% 정도 높은 함량을 보였으며, 저장기간에 따른 큰 변화는 없었다. 상온저장에서 비교적 높은 환원당 함량을 나타냈고, 포장처 리보다는 무포장처리에서 비교적 높은 함량을 나타내었다. 총당은 한라봉과 M16A 모두 포장재처리와 저장조건에 관계없이 $9.19{\pm}2.03{\sim}12.78{\pm}0.75%$ 였으며, 한라봉이 M16A보다 함량이 비교적 높은 편이였다. 비타민 C변화는 포장처리에 관계없이 저장 초기에는 일정한 함량을 보이다가 저장 105일 이후에서 서서히 감소하였다. 따라서 한라봉감귤의 저장은 성분의 변화가 적은 저온저장에서 LDPE 포장처리보다는 Si+CaO 혼합필름 포장처리를 함으로써 한라봉은 120일, M16A는 90일 이내로 저장하는 것이 신선도와 품질유지에 알맞을 것이라 판단된다.

Keywords

References

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