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Pre-treatment conditions on the powder of Tenebrio molitor for using as a novel food ingredient

갈색거저리의 식품 원료화를 위한 분말제조 조건 확립

  • Chung, Mi Yeon (Department of Agricultural Biology, National Academy of Agricultural Science) ;
  • Kwon, Eun-Young (Department of Agricultural Biology, National Academy of Agricultural Science) ;
  • Hwang, Jae-Sam (Department of Agricultural Biology, National Academy of Agricultural Science) ;
  • Goo, Tae-Won (Department of Agricultural Biology, National Academy of Agricultural Science) ;
  • Yun, Eun-Young (Department of Agricultural Biology, National Academy of Agricultural Science)
  • 정미연 (농촌진흥청 국립농업과학원 농업생물부) ;
  • 권은영 (농촌진흥청 국립농업과학원 농업생물부) ;
  • 황재삼 (농촌진흥청 국립농업과학원 농업생물부) ;
  • 구태원 (농촌진흥청 국립농업과학원 농업생물부) ;
  • 윤은영 (농촌진흥청 국립농업과학원 농업생물부)
  • Published : 2013.04.30

Abstract

Although the mealworm larva (Tenebrio molitor) is high protein source, aversion feature of the larva made it difficult for consuming as a food. In this study, we established optimal powder manufacturing process for T. molitor larva for using as a novel food. For this purpose, it should be feed with the bran sterilized by water vapor for 3-5 days, starved without water or food for 3 days, and then the larvae were sterilized before freeze-drying. The sterilized T. molitor was lyophilzed and grinded by a blender. A safety of the powder as a food was validated by evaluation of Raw 264.7 macrophage cytotoxicity using MTS assay. As above results, we propose that optimal powder manufacturing process established in this study can be used in industrial production of T. molitor as a novel food.

본 연구에서는 갈색거저리 유충의 식품 원료화를 위한 전처리 조건을 설정하기 위해 세포생존율, 이취감소 및 살균조건을 확립하였다. 분말 전처리 조건으로 사료로 사용되는 밀기울은 고온의 증기로 5분 이상 처리하여 세균을 제거한 밀기울을 3일 이상 급여한 후 2일간 절식시켰으며, $115^{\circ}C$, $0.9kgf/cm^2$, 5분간 삭균 후 동결건조하여 제조한 분말에서 세균 및 진균을 포함한 미생물이 전혀 검출되지 않았다. 세균을 제거한 밀기울을 3일 이상 급여한 유충을 2일간 절식시킨 시료에 대한 관능평가 결과 색 및 냄새에 대한 선호도가 가장 좋은 것을 확인할 수 있었다. 또한 이들 시료에 대한 대식세포 생존율을 시험한 결과 $1000{\mu}g/ml$의 고농도에서 세포독성이 전혀 나타나지 않음을 확인할 수 있었다. 이상의 결과를 통해 갈색거저리의 식품화를 위해서는 개체 확보가 용이한 8령 이상의 최대 성장유충을 이용한 멸균 밀기울 급여 후 2일간 절식한 유충 건조물이 가장 소비자의 선호도가 높을 뿐만 아니라 안전성도 높을 것이라 사료되며 산업적 측면에서의 더욱 효율적인 활용이 가능할 것이라고 기대된다.

Keywords

References

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