普洱茶活性香气化合物-.研究

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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