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1、木犀草素-Zn(II)配位印跡聚合物的制備及應(yīng)用樂薇收稿日期:2017-8-基金項目:湖北省教育廳科學研究計劃項目(B2017321),武漢工商學院校學術(shù)團隊資助項目(SXTD2015003)作者簡介:樂薇(1979-),女,副教授,聯(lián)系電話:13517219993,Email:yuewei11@126.com,吉瑞冬,吳士筠(武漢工商學院環(huán)境與生物工程學院,湖北,武漢,430065)摘要:以箬葉黃酮碳苷母核木犀草素為虛擬模板分子,結(jié)合Zn(II)的配位作用,丙烯酰胺為功能單體,N,N¢-亞甲基雙丙烯酰胺為交聯(lián)劑,
2、乙醇為溶劑制備了木犀草素-Zn(II)配位印跡聚合物,并將此聚合物與固相萃取相結(jié)合,分離了醇水體系中的箬葉黃酮碳苷。結(jié)果表明:當n(模板分子)﹕n(功能單體)﹕n(交聯(lián)劑)=1:5:30時,配位印跡聚合物具有最好的吸附性能,對醇相中木犀草素的吸附容量可達103.40mg/g,是未配位印跡聚合物吸附容量(60.61mg/g)的1.71倍,空白印跡聚合物(7.33mg/g)的13.7514.11倍。采用木犀草素-Zn(II)配位印跡聚合物分離醇水相中箬葉黃酮碳苷,經(jīng)一次分離后,葒草苷、異葒草、牡荊苷和異牡荊苷的回收率分
3、別為91.95%、80.87%、60.43%和63.63%;質(zhì)量百分數(shù)相比粗提物分別提高55.46、48.78、36.45和38.38倍,4種黃酮碳苷總質(zhì)量百分數(shù)由提取前的0.70%提高到32.68%。關(guān)鍵詞:木犀草素;配位印跡聚合物;箬葉;黃酮碳苷中圖分類號:TQ041.8R284.2文獻標志碼:A文章編號:Studyonpreparationandapplicationofluteolin-Zn(II)coordinatemolecularlyimprintedpolymersYUEWei,JIRuidong,
4、WUShijun(CollegeofEnvironmentalandBiologicalEngineering,WuhanTechnologyandBusinessUniversity,Wuhan,430065,China)Abstract:WiththeZn2+coordination,theluteolin-Zn(II)coordinatemolecularlyimprintedpolymers(MIPs)weresynthesizedusingluteolin(themothernucleusofC-glyc
5、osyflavonesfromIndicalamusleaf)asdummytemplate,acrylamide(AM)asmonomer,N,N¢-methylenediacrylamide(MBA)ascross-linkerandethanolassolution.AndthenC-glycosyflavonesfromIndicalamusleafinalcohol-watersystemwereseparatedbysolidphaseextractionusingMIPs.Theresultsshow
6、edthatwhenn(luteolin-Zn)﹕n(AM)﹕n(MBA)=1:5:30,theobtainedMIPpossessedthehighestadsorptioncapacityofluteolinfromethanolphasewithavalueof103.40mg?g-1,thatis1.71timesofMIPwithoutcoordination(60.61mg/g),13.7514.11timesofblankpolymer(7.33mg/g).TheMIPcanrevealedselec
7、tiveenrichmentcapabilityofC-glycosyflavonesfromIndicalamusleafinalcohol-watersystem,therecoveryratesofOrientin,Isoorientin,VitexinandIsovitexinare91.95%、80.87%、60.43%and63.63%,themasspercentsare55.46、48.78、36.45and38.38timesofthatincrudeextract,thetotalmassper
8、centofthefourkindsofC-glycosyflavonesisfrom0.70%to32.68%.Keywords:Luteolin;Coordinatemolecularlyimprintedpolymers;Indicalamusleaf;C-glycosyflavonesFoundationitem兩個中文項目,只有一個英文翻譯?:Sc