Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Gaseous Chlorine Dioxide Treatment to Produce High Quality Paprika for Export

고품질 수출용 파프리카 생산을 위한 이산화염소 가스 훈증 처리

  • Received : 2015.03.16
  • Accepted : 2015.05.21
  • Published : 2015.07.31
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Abstract

To maintain high quality and microbiological safety of paprika during storage for export, paprika samples after harvest were treated with 75 ppmv chlorine dioxide ($ClO_2$) gas and stored at $8^{\circ}C$, which is the optimal storage temperature, for 30 days. $ClO_2$ gas treatment reduced initial populations of total aerobic bacteria in samples by 1.62 log CFU/g as well as yeast and molds by 1.45 log CFU/g compared to those of the control. During storage, weight loss of all samples increased, and samples treated with $ClO_2$ gas showed lower weight loss than the control. In addition, total soluble solid and total phenolic contents were not significantly different between the samples during storage, whereas vitamin C content and hardness of all samples decreased. Hunter L, a, and b values of paprika samples were not significantly different between the treatments. These results suggest that $ClO_2$ gas treatment can be effective for improving microbiological safety and maintaining high quality of paprika during storage.

고품질 수출용 파프리카 생산을 위한 파프리카의 미생물학적 안전성을 확보하고 품질 유지를 위해 75 ppmv 이산화염소 가스 훈증 처리 후 $8{\pm}1^{\circ}C$에서 30일 동안 저장하면서 미생물 수 및 품질 변화를 측정하였다. 이산화염소 가스 훈증 처리 후 총 호기성 세균과 효모 및 곰팡이 수는 대조구와 비교하여 각각 1.62, 1.45 log CFU/g의 미생물 수 감소를 보였으며, 이러한 효과는 저장 30일 동안 지속되었다. 파프리카의 중량감소율은 저장 중 대조구와 처리구 모두 증가하는 경향을 나타냈으나 저장 30일 후 처리구가 대조구보다 1.08% 더 낮게 유지되었다. 저장 중 당도, 총 페놀 함량, 비타민 C 함량 및 경도는 이산화염소 가스 처리 유무와 상관없이 차이를 보이지 않았다. 당도와 총 페놀 함량은 저장 기간동안 큰 변화를 보이지 않았으나 비타민 C 함량과 경도는 저장 중 감소하는 경향을 나타내었다. 또한 이산화염소 가스 훈증 처리는 파프리카의 Hunter 색도 값에 부정적인 영향을 미치지 않았고, 관능평가에 있어서도 외관적 상태, 신선도, 종합적 기호도 측면에서 대조구보다 높은 점수를 나타냈다. 따라서 본 연구 결과 수확 후 파프리카에 75 ppmv 이산화염소 가스 훈증 처리는 저장 중 파프리카의 품질 변화를 최소화하면서 미생물학적 안전성을 확보할 수 있는 효과적인 수확 후 기술이라고 판단된다.

Keywords

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