Riboflavin / Vitamini B2 (83-88-5)
Mafotokozedwe Akatundu
Riboflavin, yemwenso amadziwika kuti vitamini B2, ndi vitamini wopezeka m'zakudya ndipo amagulitsidwa ngati chowonjezera chazakudya. [3]Ndikofunikira pakupanga ma coenzymes awiri akulu, flavin mononucleotide ndi flavin adenine dinucleotide.Ma coenzymes awa amakhudzidwa ndi metabolism yamphamvu, kupuma kwa ma cell, kupanga ma antibody, komanso kukula bwino ndi chitukuko.Ma coenzymes amafunikiranso kagayidwe ka niacin, vitamini B6, ndi folate.Riboflavin amaperekedwa kuti athetse kuchepa kwa cornea, ndipo amatengedwa pakamwa, amachepetsa kuchuluka kwa mutu waching'alang'ala mwa akulu.
Kuperewera kwa riboflavin ndikosowa ndipo nthawi zambiri kumatsagana ndi kuchepa kwa mavitamini ndi michere ina.Zitha kupewedwa kapena kuthandizidwa ndi mankhwala owonjezera pakamwa kapena jakisoni.Monga vitamini wosungunuka m'madzi, riboflavin iliyonse yomwe imadyedwa mopitilira muyeso sasungidwa;mwina sichimatengeka kapena kutengeka ndikuthamangitsidwa mwachangu mumkodzo, zomwe zimapangitsa kuti mkodzo ukhale wonyezimira wachikasu.Magwero achilengedwe a riboflavin ndi nyama, nsomba ndi mbalame, mazira, mkaka, masamba obiriwira, bowa, ndi amondi.Mayiko ena amafuna kuwonjezera ku mbewu.
Ntchito
mphamvu ya metabolism, kupuma kwa maselo, kupanga antibody, kukula ndi chitukuko.Riboflavin ndi yofunika kwambiri pa metabolism ya chakudya, mapuloteni ndi mafuta.FAD imathandizira kusintha kwa tryptophan kukhala niacin (vitamini B3) ndi kutembenuka kwa vitamini B6 kukhala coenzyme pyridoxal 5' -phosphate amafuna FMN.Riboflavin imathandizira kuti ma homocysteine aziyenda bwino;mu kuchepa kwa riboflavin, kuchuluka kwa homocysteine kuwonjezeka, kukulitsa chiwopsezo cha matenda amtima.
| Zinthu | Malire | Zotsatira |
| Maonekedwe | Orange Yellow crystalline ufa | Gwirizanani |
| Chizindikiritso | Zabwino | Gwirizanani |
| Acidity kapena alkalinity | Yang'anani mtundu wa njira yoyesera Pambuyo powonjezera mayankho | Gwirizanani |
| Lumiflavin | Kuchotsa kwa filtrate pa 440nm Sichidutsa 0.025 (USP); | 0.009 |
| Absorbance | 0.31 - 0.33 A375nm/A267nm 0.36 - 0.39 A444nm/A267nm | 0.32/0.38 |
| Kukula Kwambiri | 100% yadutsa 60 mauna | Gwirizanani |
| Kuzungulira Kwapadera | Pakati pa-115°ndi-135°(EP/BP/USP) | 121°(USP) |
| Kutaya pa Kuyanika | ≤1.5% | 0.8% |
| Zitsulo Zolemera | <10ppm | Gwirizanani |
| Zotsalira pa Ignition | ≤0.03% (USP) | 0.1% |
| Organic Volatile Zonyansa | Njira IV <467>(USP) | Gwirizanani |
| Kuyesa (zouma) | 98.0% - 102.0% (USP) | 99.85% |
