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신선 고추의 수확, 선별 및 유통 단계에서의 미생물 모니터링 및 미생물 오염 저감화 방법 모색

Prevention of Microbial Contamination Through Monitoring of the Harvesting, Sorting, and Distribution Stages of Fresh Hot Pepper

  • 김솔아 (경상대학교 응용생명과학부) ;
  • 이정은 (경상대학교 응용생명과학부) ;
  • 박현진 (경상대학교 식품공학과) ;
  • 이상대 ((주)아이엠헬스케어) ;
  • 문효영 (압티지엠제이(주)) ;
  • 심원보 (경상대학교 농화학식품공학과)
  • Kim, Sol-A (Division of Applied Life Science, Graduate School, Gyeongsang National University) ;
  • Lee, Jeong-Eun (Division of Applied Life Science, Graduate School, Gyeongsang National University) ;
  • Park, Hyun-Jin (Department of Food Science & Technology, Gyeongsang National University) ;
  • Lee, Sang-Dae (Im healthcare inc.) ;
  • Moon, Hyo-Yeong (Apteasy MJ inc.) ;
  • Shim, Won-Bo (Department of Agricultural Chemistry and Food Science & Technology, Gyeongsang National University)
  • 투고 : 2019.11.18
  • 심사 : 2019.12.09
  • 발행 : 2020.02.28

초록

본 연구에서는 고추의 수확 및 유통 단계에서 미생물 오염 수준과 그 발생원인을 확인하였고, 이를 바탕으로 수온도는 냉장 보관 보다 상온 보관일 때 미생물 오염 수준이 더 높은 것으로 나타나 냉장 보관이 미생물 오염 예방에 더 효과적인 것으로 나타났다. 추가로 소형 플라즈마를 이용하였을 때 초기 균 수 대비 5일차에서 일반세균 3.0 log CFU/g 감소, 대장균군, 효모/곰팡이는 불검출로 나타났고 플라즈마 발생장치 없는 경우 5일차에 대장균군이 2.1 log CFU/g 수준으로 검출되어 소형 플라즈마 발생장치가 보관 및 유통과정 중의 미생물의 저감에 효과적일 것으로 판단되었다. 이상의 결과로 볼 때 수확단계에서 미생물학적 위해요소 발생원인 중 하나인 작업자의 장갑을 주기적으로 교체하고 현장에서 쉽게 수행 가능한 냉장 유통 방법과 신선 고추의 수확 후 보관 및 유통 중에 소형플라즈마 장치를 이용한다면 고추의 미생물 오염을 감소시키는데 효과적인 것을 확인할 수 있었다. 또한 고추 이외에도 다른 신선농산물의 수확, 선별 단계나 유통단계에 미생물의 오염을 예방 또는 저감화 하는데 이용이 가능할 것으로 생각된다.

This study determined the microbial contamination levels of hot pepper at harvest, sorting, and distribution stages to suggest a way of reducing the microbial contamination of hot peppers by changing work gloves used throughout these processes. According to the monitoring results, the contamination levels of total aerobic bacteria (TAB) were found in the following order: soil (5.3±0.9 log CFU/g), hot pepper (4.2±0.9 log CFU/g), gloves (4.2±0.6 log CFU/g), baskets (4.1±0.7 log CFU/ g), clippers (3.9±0.6 log CFU/ g) and water (3.2±1.1 log CFU/g) at harvest stage. The contamination level of coliforms were found in the following order: soil (2.2±0.9 log CFU/g), hot pepper (2.2±0.3 log CFU/g), gloves (2.1±0.6 log CFU/g), clippers (2.0±0.21 log CFU/ g) and baskets (1.9±1.1 log CFU/ g) at harvest stage. TAB on hot pepper at the harvest stage was reduced from 4.2±0.9 log CFU/g to cold storage 3.8±0.2 log CFU/g and room temperature storage 2.6±0.3 log CFU/g, respectively. By the replacement of work gloves and lower distribution temperature, TAB levels of the peppers were significantly reduced compared to those without replacement and distributed at room temperature. In addition, the utilization of plasma was effective on reducing microbial contamination of hot pepper. These results demonstrated that appropriate replacement of gloves at the harvest stages, using plasma in the distribution stage, and refrigerated distribution conditions, which are simple and easy to practice in the field, are effective to reduce microbial contamination on hot peppers.

키워드

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