Clinical Studies on the Anti-Irritation Effects of Mung Bean (Phaseolus aureus) Extract in Cosmetics

녹두추출물의 자극완화 효과에 관한 임상 연구

  • Published : 2004.05.01

Abstract

The aim of this study is to assess the anti-irritation activities of mung bean (Phaseolus aureus) extract against various irritants used in cosmetics. For its antidotal activity, mung bean has been used as a medicinal or cosmetic material since ancient times. However, there have been few reports describing the biological activities of these beans and no comprehensive surveys of the constituents. We obtained an ethanolic extract of mung bean and isolated the major constituents, such as vitexin and isovitexin. And we previously reported that the mung bean extract containing vitexin and isovitexin had excellent antioxidant and anti-inflammatory activities. To investigate the mechanisms of anti-inflammatory activity of mung bean extract, we examined the inhibitory effects on histamine release from rat peritoneal mast cells and lipoxygenase activity. Mung bean extract inhibited histamine release in a concentration dependent manner but showed no inhibitory activity in the 5-lipoxygenase assay. And, clinical studies were conducted to evaluate the anti-irritation effects of mung bean extract against various irritants used in cosmetics such as lactic acid, retinol, and preservatives. When 2.0% of mung bean extract was applied to cosmetic formulae containing each of irritants, it revealed considerable anti-irritation efficacy. Our results of the human patch test with 20 volunteers showed that this extract reduced skin irritations caused by 5.0% lactic acid, 4000 IU retinol, and 1.0% preservative mixture by about 60%, 30%, and 50% respectively. The stinging potential test for assessing subjective irritation also showed that the extract reduced the unpleasant sensations by about 50∼30%. Finally, we performed a double-blind usage test with 30 subjects to compare formulae containing mung bean extract with placebo. From the results of questionnaires for 4 weeks of use, we confirmed the excellent anti-irritation effect of mung bean extract. Conclusively, we could discover new material that had anti-irritation effects and apply this mung bean extract to the final cosmetic products successfully.

본 연구는 화장품에서 빈번히 사용되고 있는 다양한 자극원에 대한 녹두추출물의 자극완화 효과를 알아보기 위한 임상연구에 관한 것이다. 녹두는 해독 작용이 탁월하여 예로부터 민간요법이나 화장료의 재료로 사용되어 왔다. 그러나, 녹두의 생물학적인 효능 및 구성 성분을 구체적으로 밝혀낸 연구는 전무한 실정이다.. 우리는 기존의 연구를 통하여 녹두의 에탄을 추출물이 항산화 및 항염증 효과가 우수한 것을 확인하고 이러한 효능을 제공하는 유효물질인 비텍신(vitexin)과 이소비텍신(isovitexin)을 분리해낸 바 있다. 본 연구에서는 녹두추출물의 항염증 기작을 살펴보고자 흰쥐 복강 비만세포로부터의 항원 유도성 히스타민 유리 억제능 및 5-lipoxygenase 활성 억제능을 측정하였다. 그 결과 녹두추출물은 농도 의존적으로 히스타민 유리를 억제시켰지만 5-lipoxygenase 활성을 억제하는 효과는 나타내지 않았다. 또한, 현재 화장품에 널리 사용되고 있는 자극 유발 물질인 lactic acid, retinol, 방부제 등에 대한 녹두추출물의 자극완화 효과를 알아보기 위하여 다양한 임상 연구를 수행하였다. 20명의 피험자를 대상으로 실시한 인체 첩포시험 결과, 5.0% lactic acid, 4000 IU retinol, 1.0% Preservative mixture가 들어간 제형에 2.0% 녹두추출눌을 첨가할 경우 각각 60%, 30%, 50% 정도의 우수한 자극 억제 효과를 보여주었으며, 주관적인 자극을 평가하는 피부 자극감시험 결과도 2.0% 녹두추출물을 함유하는 제형에서 약 50∼30%의 자극완화 효과를 보여주었다. 마지막으로, 30명의 피험자를 대상으로 4주간 실시한 double-blind usage test 결과 역시 녹두추출물을 화장품에 사용하였을 경우 우수한 항자극 효과를 보임을 확인하였다.

Keywords

References

  1. SOFW Journal v.121 Herbal Insights - A close look at active constituents of medicinal herbs P.Ody
  2. Phaseolus aureus in tropical crops: Dicotyledons J.W.Purseglove
  3. Dong-Eu-Bo-Gam Z.Huh
  4. Phytochem v.18 New isoflavonoids related to kievitone from Phaseolus Vulgaris M.D.Woodward https://doi.org/10.1016/S0031-9422(00)82721-1
  5. Phytochem v.23 Isosojagol, A cournestan from Phaseolus coccineus M.J.O'nell;S.A.Adesanya;M.F.Roberts https://doi.org/10.1016/S0031-9422(00)84142-4
  6. Cosmetic & Toiletries Magazine v.113 Antioxidant and anti-inflammatory activities of the mung bean B.J.Kim;J.H.Kim;M.Y.Heo;H.P.Kim
  7. J. Immunol v.114 Modulation of cyclic AMP in purified rat mast cells I. Response to pharmacolobgic, metabolic, and physical stimuli T.J.Sullivan;K.L.Parkar;W.Stenson;C.W.Parker
  8. Proc. Soc. Exp. Med. v.106 vitro histamine release from rat mast cells by chemical and physical agents Bray,R.E.;Van Arsdel,P.P. https://doi.org/10.3181/00379727-106-26302
  9. J. Phamaco. Exp. Ther. v.127 A method for the fluorometric assay of histamine in tissues P.A.Shore;A.Burkhalter;V.H.Cohn Jr.
  10. CTFA safety testing guideline: the cosmetic
  11. Textbook of contact dermatitis J.M.Lachapelle
  12. Cont. Derm. v.11 Finn chamger patch test technique T.Fisher;H.Maibach https://doi.org/10.1111/j.1600-0536.1984.tb00957.x