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《浸漬酶對蛇龍珠紅葡萄酒花色苷的影響》由會員上傳分享，免費在線閱讀，更多相關內容在學術論文-天天文庫。
1、中國農(nóng)業(yè)大學博士學位論文浸漬酶對蛇龍珠紅葡萄酒花色苷的影響姓名：程國利申請學位級別：博士專業(yè)：食品科學指導教師：張大鵬;段長青20070601AbstractThecategoriesandcontentsofanthocyaninswereanalymibyhighperformanceliquidchromatography-massspectrometry(HPLC-MS)inV'uisl，iniferaLcv．CabemetGemischetgrapepericarp,andeffectsofmacerationenzymeEX-Vond
2、ynamicchangesofdifferentanthocyaninsandwinecolorswereinvestigatedinCabemetGemischet(玩i，vinifera“)redwineduringthealcoholicfermentation(AF)andmaceration(岣malolaticfermentation(MLF)andageinginbarrelwereinvestigated．Theresultsshowthatthereare20sortsofanthocyaninsinHasviniferaL“C
3、abemetGemischetgrapepericmp,thecontentofmalvidin，themainanthocyanincomponentingrapepericalp，is83．46％．TheanthocyaniuswithhighcontentswereMalvidin-3—0Lglucoside、Malvidin-3旬一∞·acetyl)-gincosideandMalvidin-3一O-(∞一trans-coumaryl)-glucoside，andtheircontentsale33．39％、17．08％、28．99％re
4、spectively；inaddition，0．58％Malvidin—}m911日商de—acetaldehydepolymer(vitimB、wasobservedinit．Moreover,appendingmacerationenzymeEX-VCanpromotethesoakratesandcontentsofvariousanthecyaninsinwineduringAFandMstages，es腳dly,hasobviouseffectsoncinnamonylanthocyaonins,3’-PetenidiusandDelp
5、hinidins．MacerationenzymeEX-Valsocanpromotetheformationsofnewamhocyanins．Besides，MacerationenzymeEX-VadvancesthestabletimeofDelphinidin-3·O-glucosidefromtheendofmalic-lacticacidfermentation刪IF)totheendofAFstage，improvesitsstsbilityjntheMstageconsequently．Thecontentof3’一Petani
6、ndin-3-O-glucosideintreatedwinewashigherthanthatincontrolwinebeforeintothebarrelandincreasedwavily,however,thesituationWasoppositeafterintothebarrel．Inaddition，macerationenzymeEX-VenhancesthecontentsandstabilitiesofPeonidin-3一O—glucosideandMalvidins．BeforeMLF3rdweekandafterM7
7、months．thecontentofPeonidin_3—o—glucosideWashigherinthetreatedwinethanthatinthecontrolwins．AllanthocyainscontentsdecreasedafterM4months,whilethedecreaseextentinthetreatedwineWasslowerthanthatinthecontrolwine．Malvidin-3_o·gincoside-pymvicacid(vi血in舢a(chǎn)ndMalvidin-3旬-(6-o-acetyl)-
8、glucoside—pyr．1vicacid(acotyI-VitisinA)alestableanthocyaniusinCabeme
