Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Microbial Changes in Hot Peppers, Ginger, and Carrots Treated with Aqueous Chlorine Dioxide or Fumaric Acid

이산화염소수 또는 푸마르산 처리된 고추, 생강, 당근의 미생물학적 변화

  • Published : 2009.12.30
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Abstract

The effects of aqueous chlorine dioxide ($ClO_2$) or fumaric acid treatment on the reduction of microbial populations in hot pepper, ginger, and carrot, were investigated. Hot pepper, ginger, and carrot were treated with 5, 10, or 50 ppm of $ClO_2$, or 0.1, 0.3, or 0.5%(v/v) fumaric acid solution for 5 min. Aqueous $ClO_2$ or fumaric acid treatment significantly decreased the populations of both total aerobic bacteria, and yeasts and molds. In particular, 50 ppm $ClO_2$ treatment of hot pepper reduced total aerobic bacteria and yeast and mold levels, by 1.52 and 1.81 log CFU/g, respectively, whereas 0.5% (v/v) fumaric acid treatment eliminated all aerobic bacteria and all yeasts and molds. In addition, 50 ppm $ClO_2$ treatment of ginger reduced the populations of total aerobic bacteria, and yeasts and molds, by 0.53 and 0.92 log CFU/g, respectively, and 0.5% (v/v) fumaric acid treatment also decreased total aerobic bacteria, and yeast and mold levels, by 1.44 and 1.28 log CFU/g, respectively. With carrots, 50 ppm $ClO_2$ treatment decreased total aerobic bacteria, and yeasts and molds, by 1.76 and 2.22 log CFU/g, whereas 0.5% (v/v) fumaric acid treatment reduced the levels of these microorganisms by 1.94 and 1.73 log CFU/g, respectively. These results indicate that aqueous $ClO_2$ or fumaric acid treatment is useful for reducing microbial populations in hot peppers, ginger, and carrots.

이산화염소수 또는 푸마르산이 전처리된 고추, 생강, 당근의 초기 미생물수 감소 효과에 관한 연구를 하기 위하여 이산화염소수 5, 10, 50 ppm과 푸마르산 0.1, 0.3, 0.5%를 고추, 생강, 당근에 5분간 각각 처리하였다. 이산화염소수와 푸마르산 전처리는 총균수, 효모와 곰팡이 수를 유의적으로 감소시켰는데, 특히 50 ppm의 이산화염소수를 고추에 처리 시 총균수, 효모 및 곰팡이 수가 1.52, 1.81 log CFU/g 감소시킨 반면 0.5% 푸마르산의 처리는 총균수, 효모 및 곰팡이를 완전히 제거하였다. 또한 50 ppm의 이산화염소수 처리된 생강은 총균수, 효모와 곰팡이 수가 0.53, 0.92 log CFU/g 감소를 보였고, 푸마르산의 처리는 1.44, 1.28 log CFU/g 감소시켰다. 당근에 50 ppm의 이산화염소수 처리시 총균수, 효모 및 곰팡이 수를 1.76, 2.22 log CFU/g까지 줄였고 푸마르산 처리는 1.94, 1.73 log CFU/g 감소를 보였다. 따라서 이산화염소수와 푸마르산 전처리가 고추, 생강, 당근의 초기 미생물 수 감소에 효과적인 전처리 방법이라고 판단된다.

Keywords

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