Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Effect of Ozone Treatment on the Quality of Peach after Postharvest

복숭아 수확후 오존수 침지처리가 품질신선도에 미치는 영향

  • 조재욱 (경북농업기술원 청도복숭아시험장) ;
  • 김임수 (경북농업기술원 청도복숭아시험장) ;
  • 최충돈 (경북농업기술원 청도복숭아시험장) ;
  • 김일두 (대구보건대학 보건식품계열) ;
  • 장상문 (대구보건대학 보건식품계열)
  • Published : 2003.12.01
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Abstract

This study was conducted to enhance the quality and peach (Yumyung) by ozone treatment. The ozone concentration and treatment time in soaking of peach were 0.1, 0.3 and 0.5 ppm and 30 min respectively. Fruit brix degree, titratable acidity, hardness, colors values, and rotten rate were determined in ripening grade Yumyung peach and when fruits were placed at ambient temperuture(25$^{\circ}C$) during 20 days. No great difference occured between control group and all ozone treatment samples in the changes of brix degree, titratable acidity, hardness and color values at my sampling period. However, the rotten rate of ozone-treated peach stored at 25$^{\circ}C$ was lower than that of control sample. The orders of rotten rate in peaches stored for 15 days at 25$^{\circ}C$ were control products > 0.1ppm ozone-treated > 0.3ppm ozone-treated) 0.5ppm ozone-treated. Therefore, optimal renditions of Yumyung peach stored by ozone treatment at ambient temperature during 20 days were ozone concentration of 0.5ppm, treatment time of 30min, and ozone treatment frequency of four times.

경북지방에서 많이 생산되고 있는 생과용 복숭아를 이용하여 수확후 오존수 침지처리가 복숭아 품질신선도에 미치는 영향에 대하여 분석한 결과 가용성고형물은 처리후 일수가 경과할수록 조금씩 증가하는 경향을 보였으며, 처리후 15일째는 무처리구와 오존수처리구에서 유의적으로 차이가 나타나지 않았으며, 산도의 변화에서는 무처리구에 비해 오존수 침지처리가 저장기간이 경과할수록 낮아지는 경향을 보였는데, 오존수처리후 10일째와 15일깨 모두 처리구보다 낮게 나타났고, 경도는 각 처리별로 저장기간이 경과할수록 낮아졌는데 저장 15일째는 무처리구와 오존수처리구에서 유의적으로 차이가 나타나지 않았다. 그리고 색상의 변화는 각 처리별로 과육의 색이 처리별 일수가 경과함에 따라 조금씩 차이는 있으나 대체로 조금 어두워졌고 채도(b)는 연한 황색에 가까운 경향이었다. 저장기간에 따라 처리구와 무처리구 사이의 L, a, b값 모두 유의적 차이가 보이지 않았었는데 부패율에서는 저장기간이 경과함에 따라 뚜렷한 차이를 보였는데, 상온저장 10일경에는 무처리구 26.3%에 비해 오존수처리는 19.0∼21.6%로 조금 낮았고, 저장 15일째 역시 무처리구에 비해 오존수처리구의 경우 10.7∼16.0% 낮은 부패율을 나타났다.

Keywords

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