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1、anthocyanidinconfigurationandbiosyntheticpathwayshypothesisTIANXiao-Yan(ShenyangAgricultureUniversityFoodInstitute,LiaoningProvinceShenyang,110161,inChina)Maggietian2002@163.comAbstractThisstudywascarriedoutonthemassspectrometryanalysisofNanguopearfruitpeelanthocyanidin,afterde
2、tailedcalculationofMSand+MS2,hypothesizedthattheanthocyanidinconfigurationinnatureexistisinthefonnoflanternbodyorglobulebody,anditscompositionseitheronlyanthocyanidinunit,orassociatingwithglucoses?Thelanternbodyorglobulebodyisconncctcdbetweenthecellmembraneorcytoplasmmembraneor
3、gamamembraneandphotosynthesissystem?Theseanthocyanidinshavespecificmolecularweight,shapeandspecificspatialconfiguration.Sixkindsofanthocyanidins,asusuallyproposed,calledpelargonidin,cyanidin,delphinidin,peonidin,petunidin,malvidin,perhapsonlyverylittleexistinnatureatmonomers,al
4、mostallanthocyanidinsexistinnatureatlanternbodyorglobulebody.Anthocyanidinisareticularmacromoleculesconsistingofphenylbcnzopyrancconnectedthroughoxygenbridgesimilarasalanternbodyorglobulebody.Alayer4Bringslinkalayer4phenylbenzopyranesthrough4’CofBringand5’CofAringofphenylbenzop
5、yranebyoxygenbridgetiedtogetherlongitudinally,while2ZC,7'CofAringofphenylbenzopyranebyoxygenbridgehandinhandtiedtogetherhorizontally,repeatingthiscombinationunitsuntilitslenghthmeetingthenccds?Some4phcnylbcnzopyrancsoflanternbodyanthocyanidinlinkwithMg2itsfunctionresemblessome
6、chlorophylla,canabsorbandconvertlightenergy.If3'Cor5'CofBringhasnooxygenbridgelinkingeachother,afteracidulated,getpelargonidin;if3’and5’ofBringonlylinkoneortwooxygenbridges,getcyanidinandpelargonidin;if3’and5’of4Bringshasthreeorfouroxygenbridges,getdelphinidinandcyanidin;ifposi
7、tion3"ofBringonlylinksonemethoxy,getpconidin;if3’ofBringlinksonemethoxy,whileposition5’ofBringlinksoneoxygenbridge,getpetunidin;if3’and5’ofBringlinktwomethoxy,getmalvidin.Ingeneral,pelargonidin,cyanidin,delphinidinexistininnerofanthocyanidin;peonidin,petunidin,malvidinexistinto
8、pofanthocyanidinforconnectingwiththecellmembraneorthep
