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황금 발효물의 항산화 및 미백 효과 증진

Enhancement of Antioxidant and Whitening Effect of Fermented Extracts of Scutellariae baicalensis

  • 투고 : 2017.07.13
  • 심사 : 2017.08.10
  • 발행 : 2017.09.30

초록

황금(Scutellariae baicalensis)은 항염 작용이 뛰어나 예로부터 사용되어온 약재로, 본 연구는 인삼에서 분리한 유산균 Leuconostoc mesenteroides (L. mesenteroides)을 이용해 황금 발효물을 제조하고 항산화와 미백 효과를 조사하였다. 황금 발효물은 황금을 70% 에탄올로 추출한 후에 L. mesenteroides를 접종하여 발효제조하였다. 발효 전 황금과 황금 발효물에서 2가지 지표 성분 baicalin과 baicalein을 high-performance liquid chromatography (HPLC)을 이용하여 retention times ($t_R$)과 UV spectra를 확인함으로써 정성 및 정량 분석하였다. 세포 생존율 실험 결과, 발효 전후 황금 모두 독성이 확인되지 않았고 DPPH 라디칼 소거능 실험은 발효물의 $SC_{50}$ 값이 $34.43{\mu}g/mL$ 로 발효 전보다 우수한 효능을 나타내었으며, 세포 독성을 나타내지 않는 농도에서 흑색종 세포인 B16F10을 이용한 melanin 생성 억제 활성 실험 결과, 황금 발효물은 우수한 melanin 생성 억제 효과를 나타내었다($IC_{50}=68.17{\mu}g/mL$). 이상의 결과들로부터 황금 발효물이 항산화 효능뿐만 아니라 미백 효능을 갖는 화장품 원료로서 개발 가능성이 있음이 시사되었다.

Scutellariae baicalensis (S. baicalensis) has been traditionally used for anti-inflammatory effect. This study was designed to compare the antioxidant and whitening effects of S. baicalensis extract and its fermented extract by Leuconostoc mesenteroides (L. mesenteroides). Fermented extract of S. baicalenins was prepared by inoculation of L. mesenteroides after the extraction procedure with 70% ethanol. S. baicalensis extract and its fermented extract was investigated via high-performance liquid chromatography (HPLC). Simultaneous qualitative analysis of two bioactive components; baicalin and baicalein was achieved by comparing their retention times ($t_R$) and UV spectra with those of the standard components. Cell viability test results indicated that both S. baicalensis extract and its fermented extract were non-toxicity. In DPPH radical scavenging ability, $SC_{50}$ values of the fermented extract was $34.43{\mu}g/mL$ as a result of more effective than S. baicalensis extract. In nontoxic concentration rage, fermented extract of S. baicalensis showed strong melanin production inhibitory effect in ${\alpha}$-melanocyte stimulating hormone (MSH)-stimulated B16F10 cell ($IC_{50}=68.17{\mu}g/mL$). These results suggested that fermented extracts of S. baicalensis has considerable potential as a cosmetics ingredient with an antioxidant and anti-wrinkle and whitening effects.

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