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Anti-inflammatory and Antioxidant Activity of Pomegranate Leaf Extract

석류 잎 추출물의 항염 및 항산화 활성

  • Yu-Jeong Choi (Department of Biological Enginerring, Graduate School of Konkuk University) ;
  • Jeong-Wook Jo (Department of Biological Enginerring, Graduate School of Konkuk University) ;
  • Hyung-Joo Kim (Department of Biological Enginerring, Graduate School of Konkuk University)
  • 최유정 (건국대학교 생물공학과) ;
  • 조정욱 (건국대학교 생물공학과) ;
  • 김형주 (건국대학교 생물공학과)
  • Received : 2024.05.23
  • Accepted : 2024.06.18
  • Published : 2024.06.30

Abstract

This study aims to evaluate the antioxidant and anti-inflammatory effects of pomegranate (Punica granatum) leaves and to explore the potential of pomegranate leaf extract as an anti-aging cosmetic ingredient. The ethyl acetate fraction of ethanolic extract of pomegranate leaf (EFP) was assessed for its total polyphenol and flavonoid contents, as well as its antioxidant and anti-inflammatory activities. The beneficial components and skin improvement potential of pomegranate leaves were investigated. The results showed that the total polyphenol content of EFP was 871.6±16.3 mg gallic acid/g, and the flavonoid content was 36.6±0.3 mg quercetin/g. In the ABTS radical scavenging assay, EFP exhibited a dose-dependent antioxidant activity with an EC50 value of 24.62±0.48 ㎍/mL. In the skin cell cytotoxicity assay, EFP demonstrated high cell viability at concentrations below 50 ㎍/mL, indicating minimal cytotoxicity. In the nitric oxide (NO) production inhibition assay, EFP effectively inhibited NO production even at low concentrations, with near-complete inhibition at 6 ㎍/mL. These results suggest that EFP has the potential to be utilized as a natural cosmetic ingredient with antioxidant and anti-inflammatory properties.

본 연구에서는 석류의 항산화 및 항염 효과를 평가하고, 이를 통해 석류 잎 추출물이 항노화 화장품 소재로서 활용될 가능성을 확인하고자, 석류 잎 에탄올 추출물의 에틸아세테이트 분획물(Ethyl acetate fraction of ethanolic extract of Punica granatum leaf : EFP)의 총 폴리페놀 및 플라보노이드 함량, 항염 및 항산화 활성을 평가하여, 석류 잎의 유익한 성분과 피부 개선 가능성을 탐구하였다. 실험 결과 EFP의 총 폴리페놀 함량은 871.6±16.3 mg gallic acid/g, 플라보노이드 함량은 36.6±0.3 mg quercetin/g으로 나타났다. ABTS 라디칼 소거활성을 평가에서는 EFP가 농도 의존적으로 항산화능을 보였고, EC50 수치는 24.62±0.48㎍/mL로 나타났다. 피부 세포독성 실험에서 EFP는 50㎍/mL 이하 농도에서 높은 세포생존율을 보였으며, 이는 세포 독성이 거의 없음을 시사한다. NO 생성 억제 실험에서는 EFP가 낮은 농도에서도 효과적으로 NO 생성을 억제하였으며, 6㎍/mL 농도에서 거의 완전히 억제되었다. 이러한 결과는 항산화와 항염 효과를 지닌 천연 화장품 소재로 활용 가능성을 기대할 수 있다.

Keywords

Acknowledgement

본 연구는 산림청의 산림기반 사회문제해결 실증기술개발(R&D) 사업(과제번호: 2022431B10-2324-0802)과, 농촌진흥청의 농업정책지원기술개발사업(과제번호: PJ0161852023)의 지원에 의하여 연구되었습니다. 이에 감사드립니다.

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