VITAMIN B2
Kev Taw Qhia
Vitamin B2 tseem hu ua riboflavin. Nws yog ib qho vitamin uas yaj hauv dej uas tib neeg lub cev tsis tuaj yeem tsim los ntawm nws tus kheej thiab yuav tsum tau muab los ntawm cov zaub mov. Nws yog qhov tseem ceeb rau kev tswj hwm lub cev ua haujlwm thiab kev ua haujlwm ntawm tib neeg lub cev. Vitamin B2 koom nrog kev loj hlob ntawm cov hlwb, txhawb kev kho qhov txhab, ua kom cov rau tes thiab plaub hau muaj zog, thiab tseem yog ib qho tseem ceeb ntawm coenzymes. Nws koom nrog kev tsim thiab kev ua haujlwm ntawm cov pa roj carbon dioxide, cov protein thiab cov rog, thiab koom nrog kev tsim cov qe ntshav liab thiab kev thauj hlau, uas pab tiv thaiv. Nws kho cov ntshav tsis txaus hlau thiab kuj muaj qee yam tshuaj tiv thaiv ntshav siab.
Cov khoom siv tshuaj lom neeg
daj rau txiv kab ntxwv-daj crystalline hmoov, me ntsis tsw ntxhiab thiab me ntsis iab. Melting point 280 ℃ (decomposition). Yooj yim soluble hauv alkaline kua thiab sodium chloride kua, me ntsis soluble hauv dej, me ntsis soluble hauv ethanol.Cov kua dej yog daj-ntsuab, thiab cov kua dej uas saturated yog nruab nrab. Nws muaj kev tiv taus cua sov thiab acid zoo. Nws yooj yim puas tsuaj hauv cov kua alkaline lossis raug rau ultraviolet irradiation, thiab nws kuj tsis ruaj khov rau cov neeg sawv cev txo qis.
Kev ua haujlwm ntawm lub cev thiab cov txiaj ntsig
Vitamin B2 (riboflavin) yog ib hom vitamin uas yaj hauv dej, uas yooj yim zom thiab nqus tau. Cov zis tawm ntau ntxiv lossis txo raws li qhov xav tau ntawm lub cev thiab tej zaum yuav nrog qib protein poob; nws tsis khaws cia hauv lub cev, yog li nws feem ntau ntxiv nrog zaub mov lossis cov tshuaj noj qab haus huv. Tsis zoo li vitamin B1, vitamin B2 yog cov tshuaj tiv taus kub, tiv taus kua qaub thiab tiv taus oxidation. Hauv kev kho mob, cov ntsiav tshuaj vitamin B2 yog siv los tiv thaiv thiab kho cov vitamin B2 tsis txaus..
