I-Riboflavin/Vitamin B2(83-88-5)
Incazelo Yomkhiqizo
I-Riboflavin, eyaziwa nangokuthi i-vitamin B2, ivithamini etholakala ekudleni futhi idayiswa njengesengezo sokudla.[3]Kubalulekile ekwakhekeni kwama-coenzyme amabili amakhulu, i-flavin mononucleotide ne-flavin adenine dinucleotide.Lawa ma-coenzymes abandakanyeka kumetabolism yamandla, ukuphefumula kwamaselula, nokukhiqizwa kwe-antibody, kanye nokukhula nokuthuthuka okuvamile.Ama-coenzymes nawo ayadingeka ekusebenzeni kwe-niacin, uvithamini B6, kanye ne-folate.I-Riboflavin inqunyelwe ukwelapha i-corneal thinning, futhi ithathwe ngomlomo, inganciphisa izehlakalo zekhanda elibuhlungu bekhanda kubantu abadala.
Ukuntuleka kwe-riboflavin kuyivelakancane futhi kuvame ukuhambisana nokushoda kwamanye amavithamini nemisoco.Ingase ivinjwe noma yelashwe ngezithako zomlomo noma ngemijovo.Njengevithamini encibilika emanzini, noma iyiphi i-riboflavin esetshenziswe ngaphezu kwezidingo zomsoco ayigcinwa;kungenzeka ukuthi ayimuncwe noma iyamuncwa futhi isheshe ikhishwe emchamweni, okwenza umchamo ube ne-tint ephuzi ekhanyayo.Imithombo yemvelo ye-riboflavin ihlanganisa inyama, inhlanzi nezinyoni, amaqanda, imikhiqizo yobisi, imifino eluhlaza, amakhowe nama-alimondi.Amanye amazwe adinga ukungezwa kwawo okusanhlamvu.
Imisebenzi
amandla e-metabolism, ukuphefumula kwamangqamuzana, ukukhiqizwa kwamasosha omzimba, ukukhula nokuthuthuka.I-Riboflavin ibalulekile ekugayweni kwe-carbohydrate, amaprotheni namafutha.I-FAD inomthelela ekuguqulweni kwe-tryptophan ibe yi-niacin (uvithamini B3) kanye nokuguqulwa kukavithamini B6 ku-coenzyme pyridoxal 5' -i-phosphate idinga i-FMN.I-Riboflavin ibandakanyeka ekugcineni amazinga ajwayelekile okujikeleza kwe-homocysteine;ekuntuleni kwe-riboflavin, amazinga e-homocysteine ayanda, aphakamisa ingozi yezifo zenhliziyo.
| Izinto | Imikhawulo | Imiphumela |
| Ukubukeka | I-Orange Yellow Crystalline Powder | Vumelanisa |
| Ukuhlonza | Okuhle | Vumelanisa |
| I-Acidity noma i-Alkalinity | Hlola umbala wesixazululo sokuhlola Ngemva kokungeza izixazululo ezifanele | Vumelanisa |
| I-Lumiflavin | I-Absorbance ye-filtrate ku-440nm Angeqi ku-0.025(USP); | 0.009 |
| I-Absorbance | 0.31 – 0.33 A375nm/A267nm 0.36 – 0.39 A444nm/A267nm | 0.32/0.38 |
| Usayizi Oyingxenye | I-100% idlula i-60 mesh | Vumelanisa |
| Ukuzungezisa okuqondile | Phakathi kuka-115° no-135°(EP/BP/USP) | 121°(USP) |
| Ukulahlekelwa Ekumisweni | ≤1.5% | 0.8% |
| Izinsimbi Ezisindayo | <10ppm | Vumelanisa |
| Izinsalela ekushiseni | ≤0.03%(USP) | 0.1% |
| Ukungcola Okuguquguqukayo Kwezinto Eziphilayo | Indlela IV<467>(USP) | Vumelanisa |
| I-Assay (eyomisiwe) | 98.0% - 102.0%(USP) | 99.85% |
