Vitamin A b? vitamin na-agbaze ab?ba

Vitamin A Palmitate b? mmiri mmiri na-acha odo odo ruo oroma nke na-eje ozi d? ka ak?r?ngwa ak?r?ngwa. ? nwere usoro ihe omimi nke C36H60O2 na ?d? ar? molek?la nke 524.87 g/mol. Ngwak?ta a b? ihe a na-ad?gh? ah?kebe na mmiri mana ? na-agbaze na ihe mgbaze organic d? iche iche. Site na ?d? ?cha nke ≥ 98%, a maara ya maka nkw?si ike ya na ogologo nd? nchekwa nke af? 2-3 mgbe echekwara ya n'ebe d? j??, kp?r? nk?. Vitamin A Palmitate enwegh? isi ma nwee ebe agbaze nke 28-29 Celsius. A na-ejikar? ya eme ihe na ?l? ?r? d? iche iche maka nnukwu vitamin A, nke nwere ike ?ba uru maka ngwa d? ka mgbakwunye, nri nd? siri ike, na ihe ?ch? mma.

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Okwu mmalite

Vitamin A Palmitate, aha kem?kal d? ka retinol acetate, b? vitamin mb? ach?p?tara. Enwere ?d? vitamin A ab??: otu b? retinol nke b? ?d? mb? nke VA, ? d? naan? na an?man?; nke ?z? b? carotene. β-carotene nwere ike mejup?ta retinol site na osisi. N'ime ah?, n'okpuru catalysis nke β-carotene-15 na 15'-oxygenase okpukpu ab??, β-carotene na-agbanwe gh?? ratinal nke na-alaghachi na retinol site na ar?m?r? ratinal reductase. Ya mere, a na-akp? β-carotene d? ka vitamin precursor.

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Ngwa

---Mgbakwunye na-edozi ah?:A ga-eji n'?t?t? ebe n'ichep?ta ihe mgbakwunye nri. ? na-ar? ?r? d? oke mkpa n'?kwado ?h??, ?r? mgbochi, yana akp?kp? ah? d? mma.

---Nri ewusiri ike:A na-agbakwunyekar? na ngwaah?a nri d? iche iche iji kwalite uru nri ha bara. Ihe at? nd? a na-ah?kar? g?nyere mmiri ara ehi siri ike, ?ka, na usoro ?m?aka.

--- Ihe ?ch? mma na nlek?ta an? ah?:Vitamin A, n'?d? retinol ma ? b? retinyl palmitate, b? ihe na-ewu ewu na ihe ?ch? mma na ngwaah?a nlek?ta an? ah?. Amara ya maka uru mgbochi ?ka nká nwere ike ime, d? ka ibelata ?d?d? ah?r? d? mma, wrinkles, na ?kwalite mgbanwe mkp?r? nd? akp?kp? ah?.

---Nkwadebe ?gw?:A na-eji vitamin A, nke a maara d? ka retinoids, na nkwadebe ?gw?. A na-eji ha agw? ?r?a akp?kp? an? d? iche iche d? ka ihe otutu, psoriasis, na photoaging. Retinoids nwere ike inye aka mezie uto cell ma kwalite ah?ike an? ah?.

--- Ihe mgbakwunye nri an?man?:Gbanye n'?d? nri an?man? iji h? na uto, mmepe na ah?ike an? ?l? na an? ?k?k? zuru oke. ? na-enyere ha aka na-enye aka n'?r? ?r? ?m?m? na ?r? mgbochi.

---Mgbakwunye ah?ike anya:A na-etinyekar? ya na mgbakwunye ah?ike anya, d? ka retinol ma ? b? n'?d? beta-carotene. Ihe mgbakwunye nd? a ch?r? ?kwado ah?ike anya n'ozuzu yana nwere ike ?ba uru maka nd? mmad? n'otu n'otu n'ihe ize nd? nke mmebi macular degeneration (AMD) na ?n?d? anya nd? ?z?.

Nk?wap?ta ngwaah?a

Oke	Uru
Aha Chemical	Vitamin A Palmitate
Usoro ihe omimi	C36H60O2
Ibu molek?la	524.87 g/mol
?d?d?	Yellow ka oroma mmiri mmiri
Solubility	Na-ad?gh? edozi na mmiri
Ebe Na-agbaze	28-29 Celsius C
Ebe esi nri	Na-emebi ihe kar?r? 250 Celsius
?d? ?cha	≥ 98%
?n?d? Nchekwa	Chekwaa n'ebe d? j??, kp?r? nk?
Nd? shelf	? na-ab?kar? af? 2-3
Isi	Enwegh? isi
Njup?ta	0,941 g/cm3
Nt?ghar? uche	1.50
Nt?ghar? anya	+24° ruo +28°
?la d? ar? (d? ka Pb)	≤10 ppm
?nw? na ihicha	≤0.5%
Nyocha	≥ 1,000,000 IU/g (HPLC)
Oke Microbial	Na-agbaso ?kp?r? ?l? ?r?