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고전압 펄스 전기장을 이용한 식품의 상업적 살균

Commercial pasteurization of foods using high voltage pulsed electric fields treatment

  • 신정규 (전주대학교 스마트식품융합기술 ICC)
  • Shin, Jung-Kue (Smart Food Convergence Technology ICC, Jeonju University)
  • 투고 : 2020.08.31
  • 심사 : 2020.09.10
  • 발행 : 2020.09.30

초록

고전압 펄스 전기장 기술은 전기 에너지를 활용한 친환경적 비가열 공정 기술로서 꾸준히 업계의 관심을 받고 있다. 장치에 대한 이해의 부족과 장비가격에 대한 부담으로 실제 상업적 적용이 크게 증가하지 않고 있으나 가열 공정을 대체할 수 있는 기술로서의 가능성은 지속적으로 제기되고 있다. PEF 공정을 이용한 식품의 살균은 지금까지는 대부분 과일 및 야채 주스 등 저점도의 액체 식품의 살균에 대해 적용되어 왔으나 최근에는 고점도의 스무디, 고농도 단백질 음료, 혼합 주스, 알코올 음료 등으로 적용 범위가 확대되었으며, 분말, 생육 등 고체 식품의 살균에 대한 연구도 진행되고 있다. 살균 이외에도 색소, 유용성분의 추출 및 회수, 생리활성물질의 활성화, 건조의 전처리 등의 식품 공정뿐만 아니라 씨앗의 발아율 증가, 육제품의 육질 변화, 전분의 물성 변화 등에 대한 적용이 연구되면서 기존의 식품 공정을 보완 또는 대체할 수 있는 기술로서 기대되고 있다.

High voltage pulsed electric field technology has been attracting attention in the the food industry as an eco-friendly nonthermal process technology using electrical energy. The lack of understanding of the equipment and the burden of equipment cost have not significantly increased the commercial application, but the potential as a technology to replace the heat process has been continuously increased. Sterilization of foods using the PEF process has been applied to liquid foods with low viscosity such as fruit and vegetable juices, but recently, high viscosity smoothies, high concentrate protein drink, mixed juice, and alcoholic beverages. Studies on sterilization of solid foods such as powders, raw meats are also being conducted. Also, the application of extraction and recovery of useful ingredients, activation of active compounds, pretreatment of drying, improvement of meat quality, changes of properties of starch has been studies.

키워드

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