1. Isicelo ku-oxidation yamafutha
Amafutha ezilwane kulula ukuwohloka ngenxa ye-oxidation ezenzakalelayo ngoba awaqukethe ama-antioxidants emvelo. Inani le-PV lifinyelela ku-100Meq/kq kuphela ngemva kokuchayeka emoyeni ovamile wokushisa izinsuku ezi-3. Nakuba amafutha emifino aqukethe ama-antioxidants athile emvelo, azophinde abe ne-rancid ngenxa ye-oxidation ezenzakalelayo lapho egcinwe isikhathi eside ekamelweni lokushisa. I-Rancidity metamorphism kawoyela ibangelwa ukusabela kwe-oxidation okuzenzakalelayo phakathi kwe-unsaturated fatty acid glycerin nomoya-mpilo osemoyeni.
Umsebenzi we-antioxidant wetiye polyphenols waqala ukusetshenziswa ekudleni kwamafutha namafutha. Ngenxa yokuthi iqembu le-phenolic hydroxyl eringini ye-benzene yamacatechin linomsebenzi wokunikeza i-hydrogen, linamandla okunciphisa anamandla futhi liba i-antioxidant yemvelo efanelekile kawoyela namafutha. Indlela ye-antioxidative ye-polyphenols yetiye iwukuthi iqembu le-phenolic hydroxyl elisebenzayo lisebenza njenge-hydrogen donor futhi libopha namaqembu amahhala kuma-fatty acids ukuze liphazamise ukusabela kweketanga le-fatty acid oxidation, ngaleyo ndlela livimbele ukwakheka kwama-hydroperoxides.
2. Isicelo ekulondolozweni kwemikhiqizo yenyama
Ekucubunguleni imikhiqizo yenyama, zonke izinhlobo zenyama zingacwiliswa ku-0.05% 0.2% ye-polyphenol solution yetiye 5-10 min, noma zifafazwe phezu kwazo zonke izinhlobo zemikhiqizo yenyama ukuze zome, kuze kube yilapho inyama ingakwazi ukubona i-droplet surface, phezu kwamaprotheni enyama kanye nama-polyphenols akha ungqimba lwe-epidural engangenisi umoya, ingakwazi ukuphakama ukuvimbela ukukhiqizwa kwenyama, ivimbele ukukhiqizwa kwamagciwane. ukubola nokuwohloka.
3. Isetshenziselwa imikhiqizo kafulawa othosiwe noma imikhiqizo yenyama ethosiwe
Enkambweni yokuthosa yokudla okuthosiwe, inani le-peroxide lamafutha emifino lidlula i-42.8% ngemuva kokuthosa amahora angu-3, okwenza umbala wokudla okuthosiwe ube mnyama futhi omnyama. Okuqukethwe kukawoyela kwama-noodle athosiwe cishe kungama-23%. Ngokujula kwe-oxidation rancidity kawoyela endaweni yokugcina, iphunga nephunga lemikhiqizo lithinteka kakhulu, futhi ikhwalithi iyancipha kancane kancane. Ngenxa yokuthi i-polyphenols yetiye iwuhlobo lwe-antioxidant "eluphathekayo" oluhle, lunomphumela ongcono we-antioxidant ekudleni okuthosiwe, ngakho-ke ukwengeza ama-polyphenols wetiye ngesikhathi sokuthosa kungabambezela ukwenzeka kwe-oxidative rancidity futhi kuthuthukise impilo yeshalofu yokudla.
4. Isicelo emikhiqizweni yasemanzini
Ekukhiqizeni imikhiqizo yezinhlanzi ezomile, ne-tea polyphenols 300-500mg/L yamanzi (noma amanzi olwandle) imikhiqizo yasemanzini efakwe emanzini, ingavimbela izinhlanzi ezomile ngenxa "yokushiswa kwamafutha" futhi kubangelwa i-oxidation ephuzi ne-lipid, ngesikhathi esifanayo fafaza indawo yezinhlanzi ukuze ithathe indawo yokwelashwa kokukhulelwa, ingakwazi futhi ukuthola umphumela ofanayo.
5. Ukufaka isicelo ezindaweni zokugcina ujamu
Ama-polyphenols etiye anomphumela we-bacteriostatic futhi angavimbela ukulahleka kwamanzi okubangelwa amagciwane ayingozi. I-polyphenols yetiye inomphumela ophezulu we-antioxidant, inganciphisa ukulimala kwe-oxidative yezithelo nemifino, ilawule umsebenzi we-polyphenol oxidase futhi isebenze uhlelo lokuzivikela lwezithelo nemifino. Ngesikhathi esifanayo, ama-polyphenols etiye aqukethe amaqembu amaningi asebenzayo e-phenolic hydroxyl, anganikeza ngokuqondile i-hydrogen kuma-molecule kuvithamini C ezithelweni nasemifino, ukuze kugcinwe isimo esincishisiwe futhi kunciphise ukulahlekelwa uvithamini C.
6. Isicelo ekudleni okusebenzayo
Ama-polyphenols etiye, njengezingxenye ezisebenza kakhulu futhi ezifundwe kabanzi etiyeni, anamandla angenamkhawulo ekuthuthukisweni kokudla okusebenzayo. Ama-polyphenol etiye anamandla aphansi e-REDOX futhi amaqembu e-polio-e-phenolic hydroxyl angahlinzeka nge-hydrogen ukuze aphazamise noma amise ukusabela kweketango lama-free radicals. Isakhiwo sazo samakhemikhali esiyingqayizivele sinquma ikhono labo eliqinile lokususa ama-radicals mahhala. Ama-polyphenols etiye angenza kusebenze uhlelo lokulahla ama-radicals mahhala futhi avimbele ukukhiqizwa kwama-radicals mahhala ngokuvimbela uhlelo lwe-oxidase kanye nama-ion ensimbi eguquguqukayo abangelwa ukuyinkimbinkimbi. Njenge-scavenger yemvelo yamahhala, i-polyphenols yetiye ayinabungozi empilweni yomuntu.
5. Okunye
Ngenxa yokuncipha okuqinile kwetiye polyphenols, i-polyphenols yetiye ingavimbela izingulube zemvelo ezifana ne-chlorophyll, i-carotene, i-safflower yellow, i-vitamin B kanye ne-carmel ekubuneni ngenxa ye-photooxidation, futhi ingasetshenziswa njenge-ejenti egcina umbala ukugcina i-pigments ikhanya futhi izinzile.
