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

  • 제45권2호
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  • Pages.277-283
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  • 2016
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  • 1226-3311(pISSN)
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  • 2288-5978(eISSN)
한국식품영양과학회 (The Korean Society of Food Science and Nutrition)
권호 표지
DOI QR코드

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수확 후 산채류의 미생물 제어를 위한 이산화염소수와 유기산 및 Blanching 병합 처리

Combined Treatment of Aqueous Chlorine Dioxide, Organic Acid, and Blanching for Microbial Decontamination of Wild Vegetables after Harvest

  • Kang, Ji Hoon (Department of Food Science and Technology, Chungnam National University) ;
  • Park, Shin Min (Department of Food Science and Technology, Chungnam National University) ;
  • Kim, Hyun Gyu (Department of Food Science and Technology, Chungnam National University) ;
  • Son, Hyun Jung (Department of Food Science and Technology, Chungnam National University) ;
  • Lee, Ka Yeon (Department of Food Science and Technology, Chungnam National University) ;
  • Kang, Kil-Nam (Chungcheongnam-do Forest Environment Research Institute) ;
  • Park, Jong Tae (Department of Food Science and Technology, Chungnam National University) ;
  • Song, Kyung Bin (Department of Food Science and Technology, Chungnam National University)
  • 투고 : 2015.10.01
  • 심사 : 2015.11.26
  • 발행 : 2016.02.29
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초록

수확 후 산채류의 미생물학적 안전성을 확보하기 위해 선정된 산채류인 취나물과 곤드레에 이산화염소수와 유기산 용액 병합 처리 및 이산화염소수, 유기산 용액, blanching 병합 처리 후 미생물 제어 효과를 비교 분석하였다. 50 ppm 이산화염소수와 0.5% citric acid 용액의 병합 처리는 취나물과 곤드레의 총 호기성 세균 수를 2.80~3.64 log CFU/g, 효모 및 곰팡이 수는 2.02~2.67 log CFU/g 감소시켰다. 50 ppm 이산화염소수와 0.5% fumaric acid 용액의 병합 처리 후 총 호기성 세균 수는 대조구와 비교하여 3.62~3.82 log CFU/g 감소하였으며, 효모 및 곰팡이의 경우에는 2.47~3.02 log CFU/g 만큼 감소하여 이산화염소수와 citric acid 용액의 병합 처리보다 fumaric acid 용액과의 병합 처리가 더 효과적인 병합 처리 조건이라고 생각된다. 이산화염소수와 fumaric acid 병합 처리 후 blanching 처리된 취나물의 총 호기성 세균 수는 대조구보다 5.12 log CFU/g 더 낮게 검출되었으며, 효모 및 곰팡이는 검출되지 않았다. 곤드레의 경우에도 효모 및 곰팡이는 검출되지 않았으며, 총 호기성 세균 수는 대조구와 비교하여 4.59 log CFU/g 감소하였다. 따라서 본 연구 결과 이산화염소수와 유기산 용액 전처리 후 blanching 병합 처리가 산채류의 미생물학적 안전성을 확보하는 가장 효과적인 방법이라고 판단된다.

To improve the microbiological safety of wild vegetables after harvest, Aster scaber and Cirsium setidens Nakai were treated with combinations of 50 ppm aqueous chlorine dioxide ($ClO_2$)/0.5% citric acid or fumaric acid, and 50 ppm $ClO_2$/0.5% fumaric acid/blanching at $90^{\circ}C$ for 2 min. Combined treatment of 50 ppm $ClO_2$ and 0.5% citric acid reduced populations of total aerobic bacteria, yeast, and molds in Aster scaber and Cirsium setidens Nakai by 2.80~3.64 and 2.02~2.67 log CFU/g, respectively, compared to those of the control. Combined treatment of 50 ppm $ClO_2$ and 0.5% fumaric acid reduced total aerobic bacteria, yeast and molds populations by 3.62~3.82 and 2.47~3.02 log CFU/g, respectively. Based on the results, combined treatment of $ClO_2$ and fumaric acid was more effective in controlling microorganisms in the wild vegetables than either $ClO_2$ or citric acid. In addition, combined treatment of $ClO_2$/fumaric acid/blanching reduced the populations of total aerobic bacteria by 4.59~5.12 log CFU/g, and populations of yeast and molds were not detected by treatment. These results suggest that combined treatment of $ClO_2$/fumaric acid/blanching is the most effective method for improving microbiological safety of wild vegetables after harvest.

키워드

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