Qhov sib txawv tseem ceeb ntawm methionine thiab selenomethionine yog tias methionine yog ib qho tseem ceeb ntawm cov protein ua amino acid feem ntau muaj leej faj, hos selenomethionine yog ib qho derivative ntawm methionine uas muaj selenium khi rau cov amino acid methionine.
Methionine yog ib qho tseem ceeb amino acid rau tib neeg. Selenomethionine yog ib qho tshwm sim ntawm cov amino acid uas muaj selenium atom khi rau methionine amino acid.
Methionine yog dab tsi?
Methionine yog ib qho tseem ceeb amino acid rau tib neeg. Nws plays lub luag haujlwm tseem ceeb hauv cov metabolism thiab kev noj qab haus huv; nws kuj yog ib feem ntawm angiogenesis (kev loj hlob ntawm cov hlab ntsha tshiab). Tsis tas li ntawd, cov tshuaj ntawm methionine tuaj yeem pab cov neeg raug kev txom nyem los ntawm tooj liab lom. Lub codon uas encodes no amino acid yog AUG. Methionine tuaj yeem muaj nyob rau hauv ob hom xws li D isomer thiab L isomer los yog sib xyaw ntawm ob qho tib si.
Daim duab 01: Cov Qauv Tshuaj ntawm Methionine
DL methionine yog sib xyaw ntawm ob enantiomers D-methionine thiab L-methionine. Yog li ntawd, nws muaj ib tug sib tov ntawm ob hom ntawm tib lub compound. Peb hu qhov no "racemethionine" vim hais tias ib tug sib tov ntawm D thiab L enantiomers yog hu ua ib tug racemic sib tov. Nws zoo nkaus li dawb crystalline hmoov los yog me me flakes. Nws kuj dissolves nyob rau hauv dej sparingly thiab yog me ntsis soluble nyob rau hauv ethanol. DL methionine yog siv los ua kev noj haus ntxiv. Nws muaj lipotropic kev ua haujlwm. Tsis tas li ntawd, qee zaum nws tau muab rau cov dev vim nws tuaj yeem pab txo cov pob zeb hauv cov dev.
L methionine yog L enantiomer ntawm cov amino acid methionine. Feem ntau, L methionine yog qhov sib xyaw peb hu ua "methionine". Nws yog thawj zaug pom los ntawm American kws tshawb fawb John Howard Mueller (1921). Tsis tas li ntawd, nws yog ib qho tseem ceeb amino acid hauv peb lub cev uas tseem ceeb rau kev tsim cov proteins. Peb tuaj yeem pom cov amino acid no hauv qee yam khoom noj xws li nqaij, ntses, thiab khoom noj siv mis.
Ntxiv mus, cov amino acid no tseem ceeb heev hauv kev loj hlob ntawm cov hlab ntsha tshiab. Nws tseem yog qhov tseem ceeb rau kev kho cov ntaub so ntswg. Tsis tas li ntawd, nws yog sulfur-muaj cov amino acid thiab koom nrog ntau cov txheej txheem detoxifying hauv peb lub cev, xws li tiv thaiv cov hlwb los ntawm cov pa phem. Tsis tas li ntawd, nws slows cell aging thiab yog qhov tseem ceeb rau kev nqus ntawm selenium thiab zinc.
Selenomethionine yog dab tsi?
Selenomethionine yog ib qho tshwm sim ntawm cov amino acid uas muaj selenium atom khi rau methionine amino acid. Nws yog abbreviated li SeMet. Daim ntawv loj uas tshwm sim ib txwm muaj yog L-isomer ntawm selenomethionine. Nws yog daim ntawv tseem ceeb ntawm selenium uas peb tuaj yeem pom hauv Brazil txiv ntoo, cereal nplej, taum pauv, thiab nyom nyom nyom, thiab lwm yam.
Daim duab 02: Cov qauv tshuaj ntawm Selenomethionine
Cov tshuaj formula rau cov khoom no yog C5H11NO2Se, thiab molar mass yog 196 g / mol. Nws yog randomly incorporated nyob rau hauv qhov chaw ntawm methionine thiab yog yooj yim oxidized. Cov tshuaj no muaj cov tshuaj antioxidant, uas tshwm sim los ntawm nws lub peev xwm los deplete reactive oxygen hom. Ntxiv mus, selenium thiab methionine ua lub luag haujlwm sib cais hauv kev tsim thiab rov ua dua ntawm glutathione.
Qhov txawv ntawm Methionine thiab Selenomethionine yog dab tsi?
Methionine yog ib qho tseem ceeb amino acid rau tib neeg. Selenomethionine yog ib qho tshwm sim ntawm cov amino acid uas muaj selenium atom khi rau methionine amino acid. Qhov sib txawv tseem ceeb ntawm methionine thiab selenomethionine yog tias methionine yog ib qho tseem ceeb ntawm cov protein ua amino acid feem ntau muaj leej faj, hos selenomethionine yog cov derivative ntawm methionine uas muaj selenium khi rau cov amino acid methionine.
Cov infographic hauv qab no nthuav tawm qhov sib txawv ntawm methionine thiab selenomethionine hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Methionine vs Selenomethionine
Methionine yog ib qho tseem ceeb amino acid rau tib neeg. Selenomethionine yog ib qho tshwm sim ntawm cov amino acid uas muaj selenium atom khi rau methionine amino acid. Qhov sib txawv tseem ceeb ntawm methionine thiab selenomethionine yog tias methionine yog ib qho tseem ceeb ntawm cov protein ua amino acid feem ntau muaj leej faj, hos selenomethionine yog cov derivative ntawm methionine uas muaj selenium khi rau cov amino acid methionine.
