• Title, Summary, Keyword: Akebia quinata Decne

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Antioxidant Activity of Extracts from Akebia quinata Decne

  • Rim, A-Ram;Kim, Sun-Jung;Jeon, Kyung-Im;Park, Eun-Ju;Park, Hae-Ryong;Lee, Seung-Cheol
    • Preventive Nutrition and Food Science
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    • v.11 no.1
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    • pp.84-87
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    • 2006
  • Antioxidant activity of Akebia quinata Decne was evaluated. Water extract (0.5 g/50 mL) of flowers and leaves of A. quinata were prepared and total phenol contents and radical scavenging activity of the extracts was determined for antioxidant activity. The total phenol contents of extracts from A. quinata flowers (FAQ) and leaves (LAQ) were $30.05{\mu}M\;and\;20.23{\mu}M$, while the radical scavenging activity of FAQ and LAQ were 60.51 % and 52.97%, respectively. In addition, the effect of FAQ and LAQ extract on DNA damage induced by $H_2O_2$ in human lymphocytes was evaluated by comet assay. The FAQ and LAQ showed strong inhibitory effect against DNA damage induced by $200{\mu}M$ of $H_2O_2$. These results suggest that water extracts of A. quinata Decne flowers and leaves showed significant (p<0.05) antioxidant activity and protective effect against oxidative DNA damage.

Quantitative Determination of Compounds from Akebia quinata by High-Performance Liquid Chromatography

  • Yen, Nguyen Thi;Thu, Nguyen Van;Zhao, Bing Tian;Lee, Jae Hyun;Kim, Jeong Ah;Son, Jong Keun;Choi, Jae Sui;Woo, Eun Rhan;Woo, Mi Hee;Min, Byung Sun
    • Bulletin of the Korean Chemical Society
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    • v.35 no.7
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    • pp.1956-1964
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    • 2014
  • To provide the scientific corroboration of the traditional uses of Akebia quinata (Thunb.) Decne., a detailed analytical examination of A. quinata stems was carried out using a reversed-phase high performance liquid chromatography (RP-HPLC) method coupled to photodiode array detector (PDA) for the simultaneous determination of four phenolic substances; cuneataside D (1), 2-(3,4-dihydroxyphenyl)ethyl-O-${\beta}$-D-glucopyranoside (2), 3-caffeoylquinic acid (3) and calceolarioside B (4). Particular attention was focused on the main compound, 3-caffeoylquinic acid (3), which has a range of biological functions. In addition, 2-(3,4-dihydroxyphenyl)ethyl-O-${\beta}$-D-glucopyranoside (2) was considered as a discernible marker of A. quinata from its easy confuse plants. The contents of compounds 2 and 3 ranged from 0.72 to 2.68 mg/g and from 1.66 to 5.64 mg/g, respectively. The validation data indicated that this HPLC/PDA assay was used successfully to quantify the four phenolic compounds in A. quinata from different locations using relatively simple conditions and procedures. The pattern-recognition analysis data from 53 samples classified them into two groups, allowing discrimination between A. quinata and comparable herbs. The results suggest that the established HPLC/PDA method is suitable for quantitation and pattern-recognition analyses for a quality evaluation of this medicinal herb.

Consideration on Origin and Efficiency in Sasang Constitutional Medicine of Mu tong (목통의 기원 및 사상의학적 효능 고찰)

  • Jin, Ming;Ryu, Seung-Yeob;Joo, Jong-Cheon
    • 대한한의정보학회지
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    • v.20 no.1
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    • pp.1-8
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    • 2014
  • Objectives: This study aimed to find out the origin, efficiency in sasang constitutional medicine and dosage of Mu tong. Methods: Investigation and analysis was been done through 15 literatures like the pharmacopoeia of the five countries in east Asia, the literatures about sasang constitutional medicine and so on. Results and conclusion: The species of Mu tong in Korea is identical with the Mu tong in China, but different from Chuan mu tong and Guan mu tong in China. Mu tong is a kind of medicine using by kidney can be use at most 12 qian (about 45g) a day when treating heat closing in small intestine, edema, headache, dysentery and difficult urination on Soyangin(SY).

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