Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Usage- and daily intake-based cytotoxicity study of frequently used natural food additives in South Korea

국내 다빈도 사용 천연첨가물의 사용량 및 섭취량 기반 세포독성 연구

  • Yu, Jin (Division of Applied Food System, Major of Food Science & Technology, Seoul Women's University) ;
  • Kim, Ye-Hyun (Division of Applied Food System, Major of Food Science & Technology, Seoul Women's University) ;
  • Choi, Soo-Jin (Division of Applied Food System, Major of Food Science & Technology, Seoul Women's University)
  • 유진 (서울여자대학교 식품응용시스템학부 식품공학전공) ;
  • 김예현 (서울여자대학교 식품응용시스템학부 식품공학전공) ;
  • 최수진 (서울여자대학교 식품응용시스템학부 식품공학전공)
  • Received : 2020.08.24
  • Accepted : 2020.09.23
  • Published : 2020.10.31
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Abstract

Natural food additives have recently attracted attention as alternatives to synthetic additives. However, little information is available regarding their potential toxicity. In this study, we evaluated ten different natural food additives that are widely used in commercial foods in South Korea based on their actual usage level and daily intake. The results showed that none of the tested natural additives exhibited cytotoxicity in terms of inhibition of cell proliferation/viability and lactate dehydrogenase leakage. Additionally, the tested natural food additives did not generate intracellular reactive oxygen species (ROS), whereas they significantly decreased intracellular ROS levels produced by hydrogen peroxide. Moreover, none of the tested natural additives affected cell proliferation and viability in 2D and 3D intestinal epithelium models. Taken together, the ten natural food additives did not exhibit cytotoxicity in their actual usage levels. These findings can be used to further assess the toxicity of natural food additives.

본 연구에서는 국내에서 다빈도로 사용되고 있는 천연색소, 천연추출물 및 기타용도 천연첨가물 10종에 대한 독성 영향을 세포 수준에서 확인하였다. 세포 처리 농도 및 시간은 품목제조보고를 바탕으로 확인한 천연첨가물 다빈도 첨가 품목 및 그 최대사용량과 국민영양통계 일일섭취량을 기반으로 소장액 부피 및 소장 내 체류시간을 종합적으로 고려하여 설정하였다. 세포 독성 시험 결과, 10종 천연첨가물에 의한 세포성장 저해 및 사멸 유발 영향이 확인되지 않았으며 세포 내 활성산소종이 유발되지 않는 한편, 활성산소종 소거능을 보유하고 있는 것으로 나타났다. 또한, 젖산탈수소효소 분석을 통해 세포막 손상을 유발하지 않는 것으로 확인되었다. 체내 장관계와 유사한 환경을 모사한 2차원 및 3차원 장관계 모사모델을 통해 세포성장 및 사멸 효과 확인 결과, 본 연구에서 사용한 10종의 천연첨가물에 의해 세포성장 저해 및 사멸이 유발되지 않았다. 종합적으로, 본 연구에서 확인한 다빈도로 사용되는 천연첨가물 10종의 세포독성이 현재 사용수준에서는 낮은 것으로 판단되어 안전한 것으로 보인다. 이와 같은 연구결과는 안전성에 대한 정보가 상대적으로 미흡했던 천연첨가물에 대한 구체적인 독성자료로 활용될 수 있으며, 향후 보다 심도 깊은 in vivo 독성 연구를 위한 기초 토대를 마련할 것으로 기대된다.

Keywords

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