Journal of Food Hygiene and Safety (한국식품위생안전성학회지)

The Korean Society of Food Hygiene and Safety (한국식품위생안전성학회)
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Antioxidant and Anti-aging Effects of Extracts from Leaves of Castanea crenata Siebold & Zucc. in Human Dermal Fibroblast

피부 섬유아세포에서 밤나무 잎 추출물의 항산화 및 항노화 효능

  • Choi, Sun-Il (Department of Food Science and Biotechnology, Kangwon National University) ;
  • Lee, Jong Seok (Biological and Genetic Resources Assessment Division, National Institute of Biological Resources) ;
  • Lee, Sarah (Biological and Genetic Resources Assessment Division, National Institute of Biological Resources) ;
  • Lee, Hye Jin (Biological and Genetic Resources Assessment Division, National Institute of Biological Resources) ;
  • Kim, Byung-Jik (Biological and Genetic Resources Assessment Division, National Institute of Biological Resources) ;
  • Yeo, Joohong (Biological and Genetic Resources Assessment Division, National Institute of Biological Resources) ;
  • Jung, Tae-Dong (Department of Food Science and Biotechnology, Kangwon National University) ;
  • Cho, Bong-Yeon (Department of Food Science and Biotechnology, Kangwon National University) ;
  • Choi, Seung-Hyun (Department of Food Science and Biotechnology, Kangwon National University) ;
  • Lee, Jin-Ha (Department of Food Science and Biotechnology, Kangwon National University) ;
  • Kim, Jong-Yea (Department of Food Science and Biotechnology, Kangwon National University) ;
  • Lee, Ok-Hwan (Department of Food Science and Biotechnology, Kangwon National University)
  • Received : 2017.04.17
  • Accepted : 2017.05.29
  • Published : 2017.06.30
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Abstract

Intracellular and extracellular oxidative stress initiated by reactive oxygen species (ROS) causes skin aging, which is characterized by wrinkles and atypical pigmentation. Use of antioxidant is an effective approach to prevent symptoms related to ROS-induced aging of the skin. Therefore, the antioxidant and anti-aging effect of Castanea crenata Siebold & Zucc. extracts (LCE) was investigated in this study. The LCE markedly reduced the hydrogen peroxide-induced cell damage, intracellular ROS, and oxidative stress-induced senescence in human dermal fibroblasts (HDFs). These results indicate that LCE might have beneficial effects on oxidative stress-induced damage and thus reduce skin aging.

현재 식품공전에 식품원료로 사용이 가능한 것으로 등록된 국내 산림지역 자생 식물을 식품산업에 활용하고자 국내 자생식물 45종을 선별하였고, 본 연구팀의 선행연구에서 45종의 항산화 활성을 평가한 결과, 다른 종들과 비교하여 우수한 항산화 활성을 보인 밤나무 잎을 본 연구에서 사용하였다. 본 연구에서는 hydrogen peroxide로 산화적 스트레스를 유도한 상태에서 밤나무 잎 추출물의 세포 보호효과, 세포내 항산화 효과 및 항노화 효과를 관찰하였다. 세포 보호효과를 측정한 결과 밤나무 잎 추출물의 농도 유의적으로 세포를 보호하는 효과를 확인하였고, 특히 $100{\mu}g/mL$에서는 양성대조군으로 사용한 항산화 물질인 ascorbic acid 수준까지 세포를 보호하는 효과를 나타내었다. $H_2$-DCFDA 염색을 통한 세포내 항산화 효과를 확인한 결과, 형광현미경과 형광흡광도 측정에서 모두 밤나무 잎 추출물이 농도 유의적으로 세포내 ROS를 저감을 확인하였고, 세포 보호효과와 마찬가지로 농도 $100{\mu}g/mL$에서는 ascorbic acid와 비슷한 수준을 보였다. SA-${\beta}$-galactosidase 염색을 통하여 관찰한 세포노화 억제 효과는 ROS 생성 억제 효과와 유사한 경향으로 밤나무 잎 추출물의 농도 유의적으로 세포노화 억제를 관찰되었다. 이상의 결과를 종합하여 볼 때 밤나무 잎 추출물은 산화적 스트레스로 인한 세포노화를 억제하는 효능을 보였으며, 이는 천연물에서 유래한 항산화 및 항노화 활성 첨가제로 활용도가 매우 넓을 것으로 판단된다.

Keywords

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