I-Vitamin K ibizwa nangokuthi i-coagulation vitamin.Kusukela egameni layo, singakwazi ukwazi ukuthi umsebenzi wayo oyinhloko we-physiological ukukhuthaza ukuhlangana kwegazi.Ngesikhathi esifanayo, i-vitamin K iphinde ihileleke ekusetshenzisweni kwamathambo.

I-Vitamin K1 okwamanje ayisetshenziswa kabanzi ezithasiselweni zokudla kwezilwane ezifuywayo ngenxa yezindleko zayo.Ukuzinza kwe-menaquinone ekudleni kwehle ngemva kokukhishwa, ukomiswa nokunameka, ngakho-ke kwasetshenziswa okuphuma okulandelayo kwe-VK3 (ngenxa yokululama okuphezulu): i-menadione sodium bisulfite, i-menadione sulfite I-Sodium bisulfate complex, i-menadione sulfonic acid dimethylpyrimidinone, ne-menaquinone nicotinamide sulfite.

Ukuntuleka kwe-Vitamin K Emakatini

Amakati ayizitha zemvelo zamagundane, futhi kuye kwabikwa ukuthi amakati adle ushevu wamagundane oqukethe i-dicoumarin ngephutha, okuholela esikhathini sokujiya kwegazi eside.Ezinye izimpawu eziningi zomtholampilo, njengesibindi esinamafutha, isifo samathumbu esivuvukalayo, i-cholangitis, ne-enteritis, nazo zingaholela ekungeneni kahle kwe-lipids, kanye nokuntuleka kwe-vitamin K yesibili.

Uma kwenzeka unekati le-Devon Rex njengesilwane esifuywayo, kubalulekile ukuqaphela ukuthi uhlobo luzalwa luntula kuzo zonke izici zokujiya ezihlobene ne-vitamin K.

I-Vitamin K Idinga Amakati

Ukudla okuningi kwamakati okuhweba akufakiwe nge-vitamin K futhi kuncike esenzweni sezithako zokudla kwezilwane ezifuywayo kanye nokuhlanganiswa emathunjini amancane.Ayikho imibiko yokwengezwa kwe-vitamin K ekudleni kwesilwane.Ngaphandle uma kunenani elikhulu lezinhlanzi ekudleni kwezilwane ezifuywayo, ngokuvamile akudingekile ukunezelwa.

Ngokocwaningo lwakwamanye amazwe, izinhlobo ezimbili zokudla kwekati okufakwe ethini okucebile nge-salmon ne-tuna zahlolwa emakatini, okungabangela izimpawu zomtholampilo zokushoda kwe-vitamin K emakatini.Amakati amaningana esifazane namakati adle lokhu kudla abulawa ukopha, futhi amakati asaphila ayenezikhathi zokujiyisa ezinde ngenxa yokuntuleka kukavithamini K.

Lokhu kudla kwekati okuqukethe izinhlanzi kuqukethe ama-60μg.kg-1 kavithamini K, ukugxila okungahlangabezani nezidingo zikavithamini K zamakati.Izidingo zikavithamini K wekati zingahlangatshezwa yi-gut bacteria synthesis ngaphandle kokudla kwekati okuqukethe izinhlanzi.Ukudla kwekati okuqukethe izinhlanzi kudinga ukwesekwa okwengeziwe ukuze kuhlangatshezwane nokushoda ekuhlanganiseni amavithamini ngamagciwane amathumbu.

Ukudla kwekati okucebile ngezinhlanzi kufanele kuqukathe i-menaquinone, kodwa ayikho idatha etholakalayo yokuthi ungakanani uvithamini K okufanele wengezwe.Umthamo ovumelekile wokudla ngu-1.0mg/kg (4kcal/g), ongasetshenziswa njengokudla okufanele.

I-Hypervitamin K emakati

I-Phylloquinone, uhlobo lwevithamini K oluvela ngokwemvelo, aluzange luboniswe njengobuthi ezilwaneni nganoma iyiphi indlela yokuphatha (NRC, 1987).Ezilwaneni ngaphandle kwamakati, amazinga obuthi be-menadione aphindwe izikhathi eziyi-1000 kunesidingo sokudla.

Ukudla kwekati okusekelwe enhlanzini, ngaphezu kwesidingo sokunaka izinkomba ze-vitamin K, futhi kudingeka kunake izinkomba ze-thiamine (i-vitamin B1)