• Title/Summary/Keyword: verbascoside

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Biological Activities of Verbascoside from Pedicularis resupinata var.oppositifolia (Verbascoside의 생리활성)

  • Yim, Dong-Sool;Yoo, Seung-Jo;Lee, Sook-Yeon
    • Korean Journal of Pharmacognosy
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    • v.28 no.4
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    • pp.252-256
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    • 1997
  • Verbascoside has inhibition activity on carrageenan induced edema in rat paw, enhancement of bile juice secretion, and hepatoprotective activity. The hepatoprotective functions were improved on serumtransaminase activities (s-GPT and s-GOT), liver weight, and even sleeping time in mice treated with verbascoside. In addtion, the mice toxicated with carbon tetrachloride are signiflcantly recovered by the administration of verbascoside. This is the first report shown their biological activity of verbascoside.

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Isolation and Biological Activity of Verbascoside, A Potent Inhibitor of Protein Kinase C from the Calyx of Campsis grandiflora (능소화의 꽃받침으로부터 Protein Kinase C 저해물질인 Verbascoside의 분리 및 그 생물활성)

  • 이현선;박문수;오원근;안순철;김보연;김환묵;오구택;민태익;안종석
    • YAKHAK HOEJI
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    • v.37 no.6
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    • pp.598-604
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    • 1993
  • The calyx extract of Campsis grandiflora displayed inhibitory activity against protein kinase C from the bovine brain. Separation guided by protein kinase C enzyme assay and bleb forming assay led to isolation of a potent protein kinase C inhibitor that was identified as a known phenylpropanoid glycoside, verbascoside. It suppressed completely bleb-formation of K562 cell surface induced by phorbol 12,13-dibutylate at the concentration of 60 $\mu\textrm{g}$/ml and IC$_{50}$ of the protein kinase C occured at 20 $\mu{M}$. This compound was tested for cytotoxic activity against ten human tumor cell lines in vitro. it exhibited moderate cytotoxic activity against skin tumor cell line M14 (IC$_{50}$ 2.2 $\mu\textrm{g}$/ml) and very weak cytotoxicity against other cell lines (IC$_{50}$>10 $\mu\textrm{g}$/ml)

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Phenylpropanoid Glycosides of Paulownia coreana Uyeki Leaves

  • Si, Chuan-Ling;Kim, Jin-Kyu;Kwon, Dong-Joo;Bae, Young-Soo
    • Journal of the Korean Wood Science and Technology
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    • v.34 no.2
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    • pp.78-82
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    • 2006
  • The leaves of Paulownia coreana Uyeki were collected, extracted with acetone-$H_2O$ (7:3, v/v), concentrated under reduced pressure and successively fractionated using n-hexane, methylene chloride, ethyl acetate and water on a separatory funnel. A portion of the ethyl acetate soluble powder was chromatographed on a Sephadex LH-20 column using aqueous methanol and ethanol-hexane as washing solvents. Two isomeric phenylpropanoid glycosides were isolated and elucidated as verbascoside and isoverbascoside by NMR and MS spectrometers.

Phenolic Compounds from the Inner Bark of Paulownia coreana

  • Si, Chuan-Ling;Bae, Young-Soo
    • Journal of the Korean Wood Science and Technology
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    • v.35 no.5
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    • pp.93-99
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    • 2007
  • Paulownia coreana inner bark was collected, extracted in 70% acetone, concentrated under reduced pressure and sequentially fractionated using n-hexane, $CH_2Cl_2$, EtOAc and $H_2O$, then freeze dried to give brown powders. A portion of the EtOAc soluble powder was chromatographed on a Sephadex LH-20 column using a serious of aqueous methanol and ethanol-hexane mixture as eluting solvents. Two phenolic acid, $\rho$-courmaric acid and caffeic acid, two isomeric phenylethanoid glycosides, verbascoside and iso-verbascoside, and one epimeric phenylpropanoid glycoside, cistanoside F, were isolated and their structures were elucidated by spectroscopic analysis such as NMR and MS.

Acteoside의 생리활성 연구

  • 임동술;이숙연;유승조
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1994.04a
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    • pp.247-247
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    • 1994
  • Acteoside는 일명 Verbascoside로 불리우는 Phenylpropanoid glycoside에 속하는 화합물로 이미 보고되어진 생리활성으로는 Cytotoxic effect, Anti bacterial effect, Immunosuppressive effect, C-AMP Phospaestrase의 저해활성등 여러가지 생리활성이 보고되어 있다. 저자등은 마주송이풀의 성분을 규명하는 가운데 acteoside가 주성분임을 확인하게 되었고 이 식물이 한의서에서 관절염등에 사용되어 진다는 점에서 소염활성을, 식물을 건조할때 흑색으로 변하는데 착안하여 iridoid glycoside의 존재가 추정되어 iridoid glycoside의 일반 생리활성인 담즙분비 촉진작용과 간장보호 작용을 검색하던 중 phenylpropanoid glycoside인 acteoside에서도 담즙분비촉진 작용과 간장보호작용의 지견을 얻었기에 보고하고자 한다.

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Phenylethanoid Glycosides from Seeds of Paulownia coreana

  • Si, Chuan-Ling;Bae, Young-Soo
    • Journal of the Korean Wood Science and Technology
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    • v.35 no.2
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    • pp.96-101
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    • 2007
  • Seeds of Paulownia coreana were collected, extracted with acetone-$H_2O$ (7 : 3, v/v), concentrated under reduced pressure and successively fractionated with n-hexane, methylene chloride, ethyl acetate and water on a separatory funnel. The $H_2O$ soluble fraction was chromatographed on a Sephadex LH-20 column using aqueous methanol and ethanol-hexane as washing solvents. Two isomeric phenylethanoid glycosides, verbascoside (1) and isoverbascoside (2), and one epimeric phenylethanoid glycoside, campneoside II (3), were isolated and their structures were elucidated on the basis of chemical and spectroscopical data.

Aldose Reductase Inhibition Effect of PhenolicvCompounds Isolated from Paulownia coreana Bark

  • Kim, Jin-Kyu;Lee, Yeon-Sil;Lim, Soon-Sung;Bae, Young-Soo
    • Journal of the Korean Wood Science and Technology
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    • v.38 no.2
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    • pp.159-164
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    • 2010
  • Nine compounds, caffeic acid, naringenin, apigenin, luteolin, kaempferol, verbascoside, isoverbascoside, isocampneoside II, and cistanoside F, were isolated from the EtOAc and n-BuOH fractions of P. coreana bark. The structures of these compounds (1-9) were elucidated by spectroscopic methods and literature data. All the isolates were subjected to in vitro bioassay to evaluate their inhibitory activity against rat lens aldose reductase. Among these, compounds 6 and 8 indicated the significant inhibitory activity on rat lens aldose reductase with $IC_{50}$ values of 2.67 and 5.59 ${\mu}M$, respectively. Especially, The inhibition activity of acteoside was 3.9 times better than that of quercetin as a positive control (10.6 ${\mu}M$). These results suggested that phenylethanoid glycosides are likely to be the potential compounds for the prevention and/or treatment of diabetic complications.

Effect of Drying Method on Antioxidant Activity of Jiwhang (Rehmannia glutinosa)

  • Rhim, Jong-Whan;Xi, Yang;Jeong, Won-Chul;Ham, Kyung-Sik;Chung, Ha-Sook;Kim, Eun-Sil
    • Food Science and Biotechnology
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    • v.18 no.6
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    • pp.1464-1469
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    • 2009
  • Jiwhang (Rehmannia glutinosa), one of the most widely used medicinal herbs, was dried with various methods such as sun drying, hot air drying, vacuum drying, and freeze drying methods, and their effects on the antioxidant capacity in relation with the content of total phenolic compounds were studied with a steamed-and-dried rehmannia (sookjiwhang) for comparison. Generally, total phenolic contents decreased significantly by all of the drying treatments except the steamed-and-dried rehmannia, in which total phenolic contents increased 2.4 fold compared with fresh rehmannia. Content of verbascoside, a functional phenolic compound, was the highest in the freeze-dried rehmannia ($177.97{\pm}0.02\;{\mu}g/g$ d.m.) followed by vacuum-dried ($105.55{\pm}0.07\;{\mu}g/g$ d.m.), hot air-dried ($23.01{\pm}0.02\;{\mu}g/g$ d.m.), and sun-dried ($4.89{\pm}0.13\;{\mu}g/g$ d.m.) ones comparable to the fresh rehmannia ($80.15{\pm}1.26\;{\mu}g/g$ d.m.). Antioxidant capacity determined by both 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azinobis (3-ethyl-benzthiazoline-6-sulphonic acid) (ABTS) methods agreed with the result of total phenolic contents, that is, the antioxidant capacity was the highest in the steamed-and-dried rehmannia followed by fresh rehmannia, vacuum-dried, hot air-dried, sun-dried, and freeze-dried ones. Conclusively, the total phenolic contents and antioxidant capacity of rehmannia were greatly affected by the drying methods used.

Comparison of Physicochemical Properties on Dried Rehmannia glutinosa with Different Cultivars (품종에 따른 건지황의 이화학적 특성 연구)

  • Kim, Yae Jin;Han, Sin Hee;Hong, Chung Oui;Han, Jong Won;Lee, Sang Hoon;Chang, Jae Ki;Ma, Kyung Ho
    • Korean Journal of Medicinal Crop Science
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    • v.27 no.5
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    • pp.330-338
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    • 2019
  • Background: This study was conducted to compare the physicochemical properties of 12 different cultivars of Rehmannia glutinosa, a plant used in Korean traditional herbal medicine. Method and Results: We investigated the following 12 cultivars of R. glutinosa; Jihwang1, Goryeo, Daegyung, Gogang, Togang, Dagang, Wongang, Yeongang, Hwanggang, Dahwang, Segang and Chunggang. We measured water content, chromaticity, hardness, active components levels, and antioxidant activity. Our results showed that Togang has the lowest water content and the highest yield. The catalpol content was the highest in Togang (40.50 mg/g) and the lowest in Chunggang (22.17 mg/g). The aucubin content was the highest in Hwanggang (0.28 mg/g). Chunggang had the lowest aucubin content, but the highest level of verbascoside. Total flavonoid and total polyphenol were the highest in Daegyung and Chunggang, respectively. There was a strong correlation between the total flavonoid and total polyphenol (r = 0.89) content. Conclusions: There were significant differences in physicochemical properties among 12 cultivars. These properties will affect suitability for processing and final product quality. We therefore suggest the selection of appropriate cultivars for different uses.