Journal of Food Hygiene and Safety (한국식품위생안전성학회지)

The Korean Society of Food Hygiene and Safety (한국식품위생안전성학회)
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Effect of Storage Conditions on Survival of Fungi in Red Pepper Powder

저장조건이 고춧가루 중 곰팡이 생존에 미치는 영향

  • Do-Gyung Oh (Department of Food Science and Technology, Sunchon National University) ;
  • Jung-Beom Kim (Department of Food Science and Technology, Sunchon National University)
  • Received : 2023.03.31
  • Accepted : 2023.04.12
  • Published : 2023.04.28
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Abstract

In this study, we analyzed the effect of storage conditions on the survival of fungi in red pepper powder. Red pepper powder was inoculated with a total of six fungal species, namely Aspergillus terreus, Aspergillus flavus, Rhizopus microsporus, Aspergillus fumigatus, Aspergillus niger, and Aspergillus ochraceus at a final cell count of 4-6 log CFU/g. After inoculating the sterilized red pepper powder with fungi, we dried the powder on a clean bench and packaged it in zipper bags. Following drying, the water activity was 0.502±0.001. Subsequently, the red pepper powder inoculated with fungi was stored at -20℃, 5℃, 15℃, and 25℃. All six species of fungi perished the quickest at 25℃ and survived for the longest (168 days) at -20℃. In summary, this study showed that fungi survive for an extended period in red pepper powder at -20℃ and 5℃ compared to 15℃ and 25℃. Therefore, to prevent fungal contamination, red pepper powder should have a water activity below 0.6 and be stored in a zipper bag at room temperature.

본 연구에서는 저장 조건이 고춧가루 중 곰팡이 생존에 미치는 영향을 분석하였다. 고춧가루에 A. terreus, A. flavus, R. microsporus, A. fumigatus, A. niger, A. ochraceus 등 총 6종의 곰팡이를 접종하여 균액 농도가 4-6 log CFU/g이 되도록 하였다. 곰팡이를 접종한 고춧가루는 Clean bench에 건조하여 지퍼백에 포장한 후 -20℃, 5℃, 15℃, 25℃에 저장하였다. Clean bench에 건조한 고춧가루의 수분활성도는 0.502±0.001이었다. A. terreus 등 균주 6종 모두 25℃에서 가장 먼저 곰팡이가 사멸하였으며, -20℃에서 가장 마지막에 사멸하거나 168일 동안 사멸하지 않았다. 따라서 본 연구 결과, 고춧가루의 수분활성도를 0.6이하로 건조한 후 지퍼백에 소분하여 상온에 보관하는 것이 곰팡이로부터 안전할 것으로 판단되었다.

Keywords

Acknowledgement

이 논문은 2022년 순천대학교 학술연구비(과제번호: 2022-0278) 공모 과제로 연구되었습니다.

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