药用植物抗氧化活性及挥发性成分研究

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1、摘要ABl隋assayswefel。40芦g，撒L鞠d0．55∥g，f珏Lfespe殴iVely．弧ecoffelalio髓sbetweenDPPHandABTSassayswefe1．elatiVelyhigherI[r=O．9681)．ii．&’c“，．￡如c靠觑唧矽P，l饿c“肠胁HasskbelongstOthefamilyPolygalaceae．Asal糟dilio魏alChi珏esehe小al掇edieine，S．玩冀印e栉旃e掰勉纪isusedasanli-in嚣amma幻fy，anti-bactefialand

2、anli-fheumalismagenls，Pha姗acOlOgiealinVestigationshaVeshow娃thatthexanthones，asmaincomponentsaccumulatedinS．砌哪矽删硪c“肠砌，haVemanybiOactiVitiesinelu镬ngMAOin董l灞ition，cy的toxicity，anli—in蠢amma重ofyproperties，anti—tul飘of，a藏li—bacte矗al，anli—fhng越，anlioxidan重acliviliesandlubefcu

3、los重atic。Ni珏ecompoundswereisolatedfmmCHCl3extractoftherOotsofS．纨口印F以c托c蹦肠而窿，includingeightxanthones．确eifstructuI℃swereestablishedbymeansofdetailedspe&豫la珏alysis。弧e∞擞po鞋黢dswefedele珊i我edasfollow：1．1，2，5一trihydroxy一6，8一dimethoxy-9而卜xanthen一9一one(7)2．1，5-dihydroxy-2，6，8一

4、trimethoxy-9而卜xanthen一9一one(8)3．3，8一琏i珏ydfoxy—l，4一di程lelhoxy—Sl!参xa珏lhe珏一9一。珏e《辨4．4，6一dihydroxy-1，5，7一trimethoxy-9灯一xanthen一9一one(10)5．7-hydroxy一1，2，3，8一tetramethoxy-9f^xanthen-9·one(11)6。王，7一di魏y蚋xy一9i：玉x鑫蕤t囊e珏一9一。珏e(董2)7．4一hydroxy一3，7一dimethoxy一9^卜xanthen一9一one(13)

5、8．1，7一dimethoxy一9日-xanthen一9-伽e(14)9。a毽髓p撕纛(15)Compounds7and8wercnewxanthones，compOund9wasisolaledforthefifsttimefmmanaturalsource，compounds10and12wereisolatedforthefirsttimef如mlhege鼓usof&e嚣}斑酝翻．neanlioxidantRsultss的w穗a量，翁mpou稍15妊owedsi翱ificanlactiVitybytheABTSalldF黜

6、谨assays；Compou玎d7showedlC50Valueof0．31∥g／InLbytheDPPHassay．ScaVengingcapacityofcompounds7—15detenninedby触疆SandF黜谨assayswas戳llco辩latedp=O．9王93)．ii耋．nealllioxidantacliVitiesoflheo

7、hefcompoundswe纯alsoSc羚ened，and蠡VecompoundsshowedhigherantioxidantactiVityinDPPH，ABTSandFR

8、p巾assays．Thestnlctu聪softhrcecompoundswereestablishedbymeansofdel击ledspcctfaianalysis．1．5，7-dihydlQxy-2·l鞋elhyl-py￡a珏。鞋e(王7)2．pinoresinol(18)3．phillygenjn(20)Co糯；，o毽稳ds重6—29s魏owedVefyhi曲a嚣lioxida糕ladiVily．1nDPPHandAB7l’SV河南人学硕十学位论文李彩芳assays，thecompounds16and17showedhi

9、gherantioxidantactiVitythanthatofBHAandBHT，lowerthanthatofPG；inFRJ气Passay'thecompound17hadhigherantioxidantactjVjtythanthatofPG；BHA