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ID:31993319
大小:2.31 MB
页数:68页
时间:2019-01-30
《普洱茶活性香气化合物-.研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、StudyOilActiveAromaCompoundsinPuerTeaMajor:TeaScienceCandidate:RuiliLiAdvisor:Prof.HuarongTongABSTRACTPuerteawasalonghistoryofspecialteaofYunnanprovinceinChina.Ithadbeenageographicalindicationproduct.Becauseofitsexcellenthealthbenefitsanditwasmoreandmorepopularinthemajorityofcons
2、umersathomeandabroad.PuerteaprocessingtechnologywasbasedontheYunnanbigleaveSoffreshleavesbyfixing,rolling,dryingandotherprocessesmadegreenmaocharawmaterials,thenheapfermentation,steamingkneading,moldingintovariousshapesofthefinishedproductPuertea.Thechemicalcompositionsoccuredthe
3、complexchangesintheheapfermentation,especiallyofteaaromacomponents,enzymolysis,oxidationreductionofcatechinsandotherpolyphenols,aswellaswater,heatandacidicconditions,coundcauseorpromotethegenerationofaromaticcompounds.ThishadbeentheuniquequalitycharacteristicsandhealtheffectsofPu
4、ertea.ManyPuertearesearchershadalotofresearchonitschemicaIcompositionanditsvariationlawintheprocess,andrevealeditsrelationshipwithPuerteaquality,butbecauseofthelackofsystematicresearch,itneededscientistsandPuertealovers’furtherresearchandexploration.Puerteaproductslackedoftheinte
5、mationaImarketcompetitiveness。becausethearomawaslowononehand.Ifcoundstrengthentheresearchinthisregard,andidentifiedthatwhatcompoundshadasignificantcontributiontoPuerteaaroma.ItwoundbringgreaterdevelopmentofPuerteaproducts.EffectiveUSeSofmodemtechnologywoundexpandthePuerteasales,s
6、ervicefortheIocaIagriculturaleconomy.Samplepreparationadoptedstaticstateheadspacesolid.phasemicroextraction,anditconcentratedvolatileorganiccompoundsintypicalrepresentativeofPuerripeteainYunnaninfivedifferentstoragetimes.Bymeansofapreliminaryanalysisbygaschromatography·massspectr
7、ometry(GC.MS),forIII西南大学硕士学位论文量寡舅舅量量量曼皇曼曼量皇量曼曼薯量量量曼量量曹皇量曼皇曼量皇篁皇曼皇皇曼曼量量曼量詈量曼曼舅曼量量皇皇鼍鲁皇量皇鼍鲁IIvolatilecomponentsvarietiesandcontentsofthefivepuerripeteas.Gaschromatography-olfactometry(GC—O)analysedaromaactivecompositions·What’Smore,measuringthethresholdsoffivemethoxycompounds,tofur
8、therdeterminethecontributionofmethoxycom
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