多酚等物質在煙葉生長中的變化及其與煙葉等級關系的研究.pdf

1、分類qi暫綴巖微雇業(yè)大學～!!!盟～S03Q!Q191QQ2——學位論文多酚等物質在煙葉生長中的變化及其與煙葉等級關系的研究STUDYONTHECHANGESoFPOLYPHENoLANDOTHERCHEMICALCoNTENTSINTOBACCoGRoWINGPROCESSANDTHERELATIoNSBETWEENTHoSEANDTHELEAFToBACCoRANK研究生：指導教師：合作指導教師：申請學位門類級別!專業(yè)名稱：研’方向

2、：所在學院：筮塵蘸董幺墊煎援叁堂題～——堡塑塹接堂芝燮掛堂侄塑盞培墨生理生絲盟紅生堂瞳答辯委員會主席2006正AbstractTheexperimentswerecarriedoutonthefmm1abofUSTCandfiveprovincesofchinafrom2004to2006，byusingtheprincipleandmethodsoftobaccochemistrybiochemistrytobaccocultivat

3、ion，tobaccobiochemistryMainlyhasstudiedaboutthechangeofthepolyphenolandthecorrelationchemicalsubstanceinleaftobaccointhedifferentvegetalperiod，thedifferentrankandinthedifferentecologyareaThemainresultsareasfollows：1Witht

4、hegrowthanddevelopmentoftobaccoleaf，thecontentoftotalphenols，chlorogenicacidandrutinincreasedgraduallyThecontentofPhenylalanineandtyrosine(tbePrecursorofpolyphenols)decreasedallthetimeintobaccoleafduringthegrowthItwassig

5、nificantlynegativecorrelationbetweentotalphenolsandphenylalanine，tyrosineduringthegrowthoftobaccoplantsItwaspositivecorrelationbetweenPALactivityandtotalphenols，chlorogenicacid，rntinAnditisclosetosignificantcorrelationle

6、velNocorrelationwasfoundbetweenPPOactivityandployphenolscontentsThedifferencebetweentotalphenolsandnicotinewassignificant，andtotalphenolshadnegativecorrelationwithtotalnitrogenThedifferencebetweenrutincontentandtotalnitr

7、ogenwasnotsignificant，andtheotherrelationsarethesameastotalphenols2Alongwithelevating，thepolyphenolsmatterthenicotine，thetotalnitrogencontentallelevatesintheflue—curedtobaccothesugartonicotinecomparesdropsButthesugarcont

8、entishighestinmiddlespot，upsideisnext，lowerpartislowestInthesamespotalongwithleaftobaccocolordeepening，thepolyphenol，thesugarcontentreduces，butthenicotineandthetotalnitrogencontentactuallyincreasesthesugartonicotinedrops

9、Whenspotandcolorareallsame，alongwiththerankenhancementvariouschemicalsubstancecontentchangeruleisextremelyobviouspolyphenol，nicotine，thetotalsugarandtheoriginalstatesugarcontentrises，butthetotalnitmgencontentisdrops3Thec

10、hemicalcompositionshavedifferencebetweendifferentregionsandthedifferenceisalittlegreaterinsomeareasinthesameconditionNicotine，andsugar／nicotinehassignificantdifferencebetweenregions，thedifferenceislessfortotalnitrogen，th

11、edifferenceoftheabsolutevalueofsugarisgreater，buttherelativevalueislessThecharacteristicsofthechemicalcompositionofallproducingregionsarethat：nicotinecontentinLiaoningisthelowest，sugarcontentisinthemiddle，totalnitrogenco

12、ntentandtheratioofsagartonicotinecontentismedialInthetobaccoleavesinAnhui，nicotinecontentisthegreatest，totalsugarcontent，sugar／nicotineisthelest，reductivesugarcontentislower，totalnitrogenishigherIntheleavesinOuizhou，nico