Curs Vitamine 2-1
Click here to load reader
description
Transcript of Curs Vitamine 2-1
-
EFECTORI BIOCHIMICI
-
CLASIFICAREA VITAMINELOR
Vitamine
hidrosolubile
liposolubile
complexul B
vitamina C (acid ascorbic)
vitamina B 1 (tiamina)vitamina B 2 (riboflavina)vitamina B 3 (niacina)vitamina B 4 (acid pteroilmonoglutamic)vitamina B 5 (acid pantotenic)vitamina B 6 (piridoxina)vitamina B 7 biotina)vitamina B 12 (cian-cobalamina)
vitaminele A (retinoli)vitaminele D (calciferoli)vitaminele E (tocoferoli)vitaminele K (menaftone)
vitamine P (bioflavonoide)
-
VITAMINA B1 STRUCTURA CHIMIC
Are n structur un nucleu pirimidinic i un nucleu tiazolic legate ntre ele printr- grupare
metilenic
N
N
CH2
H3CNH2
N
S
CH3
CH2 CH2 OH
+
Vitamina B1
-
VITAMINA B2 STRUCTURA CHIMIC
N
N ON
NH
H3C
H3C
rest izoaloxazinic
rest ribitil
vitamina B2
CH2 CH(OH) CH(OH) CH(OH) CH2 OH
-
VITAMINA B3 STRUCTURA CHIMIC
N
COOH
N
CO-NH2
Acid nicotinicVitamina B3
Nicotinamida
-
VITAMINA B4 STRUCTURA CHIMIC
N
N N
N
NH2
OHCH2 NH CO N
HCHCOOH
CH2 CH2 COOHA B
Pteridina
Acid p-amino- benzoic
Acid glutamic12
3
45
6
78
9 10
Acid pteroic
Acid folic ( pteroilglutamic )
-
VITAMINA B5 STRUCTURA CHIMIC
HO CH2 C
CH3
CH3
CH
OH
CO NH CH2 CH2 COOH
rest de acid pantoic rest de
- alanina
-
VITAMINA B6 STRUCTURA CHIMIC
N
OH
CH3
CH2OHCH2OH
N
OH
CH3
CH2OHCHO
N
OH
CH3
CH2OHCH2NH2
piridoxina piridoxal piridoxamina
-
VITAMINA B12 STRUCTURA CHIMIC
-
VITAMINA C
C1C2
OOH
C3C4
OH
HC5OH HCH2OH
O
EFECTORI BIOCHIMICICLASIFICAREA VITAMINELORVITAMINA B1 STRUCTURA CHIMICVITAMINA B2 STRUCTURA CHIMICVITAMINA B3 STRUCTURA CHIMICVITAMINA B4 STRUCTURA CHIMICVITAMINA B5 STRUCTURA CHIMICVITAMINA B6 STRUCTURA CHIMICVITAMINA B12 STRUCTURA CHIMICVITAMINA C