Cov nyhuv ntawm selenium
Haum rau kev ua liaj ua teb thiab nqaij qaib
1. Txhim kho kev tsim khoom thiab pub hloov pauv tus nqi;
2. Txhim kho kev tsim tawm;
3. Txhim kho cov nqaij, qe thiab mis nyuj, thiab txhim kho cov ntsiab lus selenium ntawm cov khoom;
4. Txhim kho tsiaj protein synthesis;
5. Txhim kho qhov muaj peev xwm tiv thaiv kev ntxhov siab ntawm cov tsiaj;
6. Kho cov kab mob hauv plab hnyuv kom muaj kev noj qab haus huv ntawm cov hnyuv;
7. Txhim kho tsiaj tiv thaiv…
Vim li cas cov organic selenium zoo dua rau inorganic selenium?
1. Raws li ib qho ntxiv ntxiv, bioavailability ntawm selenium cysteine (SeCys) tsis siab dua li ntawm sodium selenite.(Deagen li al., 1987, JNut.)
2. Tsiaj txhu tsis tuaj yeem tsim cov selenoproteins ncaj qha los ntawm exogenous SeCys.
3. Kev siv tau zoo ntawm SeCys hauv cov tsiaj yog ua tiav los ntawm kev hloov pauv thiab kev sib txuas ntawm selenium hauv txoj kev metabolic thiab hauv cov hlwb.
4. Lub pas dej selenium siv rau kev ruaj khov ntawm selenium hauv cov tsiaj tsuas tuaj yeem tau los ntawm kev ntxig cov khoom sib txuas ntawm cov proteins uas muaj selenium nyob rau hauv daim ntawv ntawm SeMet es tsis txhob ntawm methionine molecules, tab sis SeCys siv tsis tau txoj kev synthesis no.
Txoj kev nqus ntawm selenomethionine
Nws yog absorbed tib yam li methionine, uas nkag mus rau hauv cov ntshav system los ntawm sodium pumping system nyob rau hauv lub duodenum. Qhov concentration tsis cuam tshuam rau absorbtion. Vim tias methionine yog ib qho tseem ceeb amino acid, nws feem ntau yog absorbed heev.
Kev ua haujlwm lom neeg ntawm selenomethionine
1. Antioxidant muaj nuj nqi: Selenium yog lub active centre ntawm GPx, thiab nws cov antioxidant muaj nuj nqi yog paub los ntawm GPx thiab thioredoxin reductase (TrxR). Antioxidant muaj nuj nqi yog lub luag haujlwm tseem ceeb ntawm selenium, thiab lwm yam kev ua haujlwm lom neeg feem ntau yog raws li qhov no.
2. Kev txhawb nqa kev loj hlob: Muaj ntau cov kev tshawb fawb tau ua pov thawj tias ntxiv cov organic selenium los yog inorganic selenium rau cov khoom noj tuaj yeem txhim kho kev loj hlob ntawm cov nqaij qaib, npua, ruminants los yog ntses, xws li txo qhov piv ntawm pub rau nqaij thiab nce qhov hnyav txhua hnub. nce.
3. Txhim kho kev ua me nyuam: Cov kev tshawb fawb tau pom tias selenium tuaj yeem txhim kho cov phev motility thiab cov phev suav hauv cov phev, thaum selenium deficiency tuaj yeem ua rau cov phev malformation tus nqi; Ntxiv selenium hauv kev noj zaub mov tuaj yeem ua rau cov fertilizing tus nqi ntawm sows, nce cov litter, nce. tus nqi ntawm qe ntau lawm, txhim kho qe zoo thiab ua kom lub qe hnyav.
4. Txhim kho nqaij zoo: Lipid oxidation yog qhov tseem ceeb ntawm cov nqaij zoo deterioration, selenium antioxidant muaj nuj nqi yog lub ntsiab tseem ceeb los txhim kho nqaij zoo.
5. Detoxification: Cov kev tshawb fawb tau pom tias selenium tuaj yeem tiv thaiv thiab txo cov tshuaj lom ntawm cov hlau lead, cadmium, arsenic, mercury thiab lwm yam teeb meem, fluoride thiab aflatoxin.
6. Lwm cov haujlwm: Tsis tas li ntawd, selenium plays lub luag haujlwm tseem ceeb hauv kev tiv thaiv kab mob, selenium deposition, hormone secretion, digestive enzyme kev ua, thiab lwm yam.
Post lub sij hawm: Feb-28-2023
