• Title/Summary/Keyword: 백지

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Optimization of mixing ratio of Polygala tenuifolia, Angelica dahurica and Elsholtzia splendens extracts for cosmetic material development (화장품 소재 개발을 위한 원지 (Polygala tenuifolia), 백지(Angelica dahurica) 및 꽃향유 (Elsholtzia splendens) 추출물의 혼합 비율 최적화)

  • Jung Seo A;Song, Ga Hyeon;Su In Park;Jung, Youn Ok
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.6
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    • pp.993-1000
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    • 2023

  • Recently, enviromentally friendly natural substances derived from plants have been attracting attention as cosmetic materials, and research on various physiological activities of natural substances is being actively conducted. This study investigated the antioxidant, anti-inflammatory, moisturizing, and antibacterial effects of three types of extracts of mixtures containing different mixing ratios, Polygala tenuifolia, Angelica dahurica, and Elsholtzia splendens, known to have various physiological activities. The mixing ratio is 7 conditions (M1, 1:1:1; M2, 0.5:1.5:1; M3, 1.5:0.5:1; M4, 0.1:0.95:0.95; M5, 0.5:0.5:2; M6, 0.95 :1.95:0.1; M7, 1.45:0.1:1.45), and the optimal mixing ratio was confirmed for use as a cosmetic material. DPPH and ABTS radical scavenging activities showed scavenging abilities of 75.37% and 99.19%, respectively, at 1,000 ㎍/mL of M6. At a concentration of 200 ㎍/mL of M6, it showed 50% of nitric oxide production inhibition compared to the lipopolysaccharide-treated that induced an inflammatory response. It was confirmed that M3 and M6 produced hyaluronic acid 1.47 and 1.49 times higher than the control at a concentration of 50 ㎍/mL, respectively. Through the disc diffiusion test, the clear zone was 9.75 mm at 8 ㎍/mL of M6, confirming the inhibition of growth of staplylococcus aureus strain. Based on the above results, it is believed that the mixed extract of Polygala tenuifolia, Angelica dahurica, and Elsholtzia splendens can be used as a functional natural material for cosmetics.

  • https://doi.org/10.17703/JCCT.2023.9.6.993 인용 PDF

책으로 조명하는 '김일성과 그 이후'

  • Korean Publishers Association
    • The Korean Publising Journal, Monthly
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    • s.153
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    • pp.4-5
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    • 1994

  • 역설적이게도 죽음을 통해 비로소 독서대중의 전면에 등장하게 된 김일성에 대해 그동안의 우리는 백지상태나 마찬가지였다. 사실의 규명보다 정치적 선전의 필요가 압도적으로 우세했던 시대에 김일성은 다만 한국현대사의 악역으로 비난받고 무시되는 존재였고, 따라서 그에 대한 객관적 연구나 그것의 출판은 거의 불가능한 형편이었다.

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