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하송이,윤하나,송창선,강세찬,배종진,김희태,이광민,엄태훈,김인수,곽종환 한국미생물학회 2014 The journal of microbiology Vol.52 No.4
The ethanol extract of Zanthoxylum piperitum (L.) DC. showed in vitro antiviral activity against influenza A virus. Three flavonol glycosides were isolated from the EtOAcfraction of Z. piperitum leaf by means of activity-guidedchromatographic separation. Structures of isolated compoundswere identified as quercetin 3-O-β-D-galactopyranoside(1), quercetin 3-O-α-L-rhamnopyranoside (2), kaempferol3-O-α-L-rhamnopyranoside (3) by comparing theirspectral data with literature values. The anti-influenza viralactivity of isolates was evaluated using a plaque reductionassay against influenza A/NWS/33 (H1N1) virus. The compoundsalso were subjected to neuraminidase inhibition assayin influenza A/NWS/33 virus. Compounds 1-3 exhibited antiviralactivity against an influenza A virus in vitro, and inhibitedthe neuraminidase activity at relatively high concentrations.