DOI QR코드

DOI QR Code

Study on the Antioxidant Activity of Geranium nepalense subsp. thunbergii Extract

이질풀 추출물의 항산화 효능에 관한 연구

  • Received : 2011.01.14
  • Accepted : 2011.02.22
  • Published : 2011.03.31

Abstract

Antioxidant activity of Geranium nepalense subsp. thunbergii extract was evaluated by DPPH free radical scavenging assay. Geranium nepalense subsp. Thunbergii extract contains tannin, (-)epicatechin, kaempferitin, kaepferol -7-rhamnoside, brevifolin, corilagin, pyrogallol, ellagitannin, geraniin, gallic acid, succinic acid, quercetin, protocatechuic acid, etc. Geranium nepalense subsp. Thunbergii showed excellent antioxidant activity compared to positive control, quercetin. Geranium nepalense subsp. thunbergii extract showed a 98.33 % inhibition of DPPH radical at a concentration of $50\;{\mu}g/mL$. Quercetin showed a 78.05 % inhibition of DPPH radical at the same concentration. To investigate reactive oxygen species (ROS) scavenging activity, Geranium nepalense subsp. thunbergii extract was treated to human keratinocytes (HaCaT). $IC_{50}$ value of Geranium nepalense subsp. thunbergii extract was $43.22\;{\mu}g/mL$ and $IC_{50}$ value of quercetin was $102.35\;{\mu}g/mL$. Geranium nepalense subsp. thunbergii extract showed excellent antioxidant activity. Skin irritation test and cytotoxicity test suggested that Geranium nepalense subsp. thunbergii extract is a safe antioxidant ingredient for cosmetics.

본 연구는 이질풀 추출물의 항산화 효능에 관한 연구로, 항산화 및 항노화의 기능성 화장품 소재로서의 개발 가능성을 확인하고자 하였다. 이질풀의 주요 성분으로는 tannin, (-)epicatechin, kaempferitin, kaepferol-7-rhamnoside, brevifolin, corilagin, pyrogallol, ellagitannin, geraniin, gallic acid, succinic acid, quercetin, protocatechuic acid 등이 보고되어 있다. DPPH 라디칼 소거능 평가를 통한 이질풀 추출물의 항산화 효능을 측정한 결과, 대조군인 quercetin과 비교하여 우수한 소거 활성을 확인할 수 있었다. 동일 농도($50\;{\mu}g/mL$)를 처리하였을 때 이질풀 추출물의 DPPH 라디칼 소거능은 약 98.33 %로 측정되었으며, quercetin의 경우 78.05 %로 측정되었다. Human keratinocyte (HaCaT)에 이질풀 추출물을 처리하여 세포내 Reactive Oxygen Species (ROS) 생성 저해능을 측정한 결과, $IC_{50}$값은 이질풀 추출물과 quercetin에서 각각 43.22, $102.35\;{\mu}g/mL$로 측정되어 이질풀 추출물의 우수한 항산화 효능을 확인할 수 있었다. 또한 피부 자극 테스트 및 세포 독성 평가를통하여 이질풀 추출물이 피부에 자극을 유발시키지 않는 안전한 소재임을 확인하였다.

Keywords

References

  1. Biotech Information Portal, http://www.bioin.or.kr.
  2. J.-H. Kim, S.-J. Yoon, K.-H. Lee, H.-J. Kwon, S.-S. Chun, T.-W. Kim, and Y.-J. Cho, Screening of biological activities of the extracts from Bisil (OcimumbasilicumL.), J. Korean, Soc, Appl, Biol, Chem., 48(2), 173 (2005).
  3. I. S. Rhu, A study of dermal bioactive properties of the ethanol extracts from flowers of Lespedezabicolor, Ph. D. Dissertation, Dept. of Orientalmedical, Wonkwang University, Seoul (2006).
  4. J. C. Fantone and P. A. Ward, Role of oxygenderived free radicals and metabolites in leukocyte dependent inflammatory reaction, Ann J. Path, 107, 397 (1982).
  5. K. J. A. Davies, Protein damage and degradation by oxygen radical, J. Biol. Chem., 262, 9895 (1987).
  6. C. S. Foote, Photosensitized oxidation and singlet oxygen; consequences in biological systems, ed. W. A. Pryor, 2. 85. Acdemicpress, NewYork (1976).
  7. S. N. Park, Ph. D. Dissertation, Seoul National Univ., Seoul, Korea (1989).
  8. S. N. Park, Skin aging and antioxidant, J. Soc. Cosmet. Scientists Korea, 23, 75 (1997).
  9. S. N. Park, Protective effect of isoflavone, genistein from soybean on singlet oxygen induced photohemolysis of human erythrocytes, Korean J. Food Sci. Technol., 35(3), 510 (2003).
  10. S. N. Park, Antioxidative properties of baicalein, component from Scutellaria baicalensis Georgi and its application to cosmetics (I), J. KoreanInd. Eng. Chem., 14(5), 657 (2003).
  11. K. Scharffetter-Kochanek, Photoaging of the connective tissue of skin: its prevention and therapy, antioxidants in disease mechanism and therapy, ed. H. Sies. 38, 639 (1997).
  12. Medical plants of Korea, www.medicalplant.org.
  13. Korea Food & Drug Administration (KFDA) search engine (2004), http://fse.foodnara.go.kr/origin/.
  14. T. Mosmann, Rapid colorimetric assay for the cellular growth and survival : application to proliferation and cytotoxic assay, J. Immun. Methods., 65, 55 (1983). https://doi.org/10.1016/0022-1759(83)90303-4
  15. Y. Shimada, H. Tai, A. Tanaka, I. Ikezawa-Suzuki, K. Takagi, Y. Yoshida, and H. Yoshie, Effects of ascorbic acid on gingival melanin pigmentation in vitro and in vivo, J. Periodontol, 80, 317 (2009). https://doi.org/10.1902/jop.2009.080409