Vitamin B12 hmoov

 

Product Description

 

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Vitamin B12, tseem hu ua cobalamin, yog polycyclic compound uas muaj trivalent cobalt. Plaub qhov txo qis pyrrole rings yog txuas ua ke los tsim ib lub corrin macrocycle (zoo ib yam li porphyrin), uas yog tib qho khoom siv hlau. Cov vitamins. Vitamin B12 yog liab crystalline hmoov, tsw thiab saj tsis qab, me ntsis soluble nyob rau hauv dej thiab ethanol, qhov ruaj khov tshaj nyob rau hauv cov xwm txheej ntawm pH 4.<2) or alkaline solution, it can be destroyed to a certain extent when heated . Higher animals and plants cannot manufacture vitamin B12, and vitamin B12 in nature is synthesized by microorganisms.

Khoom npe	Vitamin B12
CAS	68-19-9
Formula	C63H88CON14O14P
Molecular hnyav	1355.38
Qhov tshwm sim	Tsaus liab crystalline hmoov
Cia	Khaws rau hauv qhov chaw kaw, txias, qhuav
Txee lub neej	24 muaj

  

 

 

Yuav ua li cas yog lub mechanism ntawm kev txiav txim ntawm vitamin B12?

 

Vitamin B12 hauv cov zaub mov yog ua ke nrog cov protein thiab nkag mus rau tib neeg lub plab zom mov. Raws li kev ua ntawm gastric acid, pepsin thiab trypsin, vitamin B12 raug tso tawm thiab ua ke nrog glycoprotein intrinsic factor (IF) secreted los ntawm gastric mucosal hlwb. Vitamin B12-IF complex yog absorbed nyob rau hauv lub ileum. Kev khaws cia ntawm cov vitamin B12 tsawg heev, txog 2 mus rau 3 mg hauv daim siab. Feem ntau excreted nyob rau hauv cov zis, ib feem excreted nyob rau hauv cov kua tsib.

 

Khoom muaj nuj nqi

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1. Txhawb txoj kev loj hlob thiab kev loj hlob ntawm cov qe ntshav liab, ua kom lub cev hematopoietic muaj nuj nqi, tiv thaiv pernicious anemia; tswj kev noj qab haus huv ntawm lub paj hlwb

2. Nyob rau hauv daim ntawv ntawm coenzyme, nws muaj peev xwm nce qhov kev siv ntawm folic acid thiab txhawb lub metabolism ntawm carbohydrates, rog thiab proteins.

3. Nws muaj lub luag haujlwm ntawm activating amino acids thiab txhawb lub biosynthesis ntawm nucleic acids, uas tuaj yeem txhawb cov synthesis ntawm cov protein, uas ua lub luag haujlwm tseem ceeb hauv kev loj hlob thiab kev loj hlob ntawm cov menyuam mos thiab menyuam yaus.

4. Metabolize fatty acids kom cov rog, carbohydrates, thiab cov proteins raug siv los ntawm lub cev

5. Tshem tawm kev chim siab, mloog zoo, txhim khu kev nco thiab sib npaug

6. Nws yog ib qho tseem ceeb ntawm cov vitamin rau kev noj qab haus huv ntawm lub paj hlwb, thiab koom nrog kev tsim cov lipoprotein hauv cov ntaub so ntswg.

Khoom siv

 

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