title: [Separation of vitamins by non-conventional techniques. Facilitated pertraction of vitamin C].
abstract: Pertraction (permeation through liquid membranes) is one of the new techniques applied for separation and advanced purification of bioactive compounds. The study on the facilitated pertraction of vitamin C with Amberlite LA-2 underlined the significant influences of the pH-gradient between the aqueous phases, carrier concentration and mixing intensity. Thus, for reaching the maximum efficiency of vitamin C pertraction, the pH-value of the initial aqueous phase below 2, the pH-value of the final aqueous solution greater than 11 and the Amberlite LA-2 concentration in solvent layer over 80 g/l are required.
authors.affiliation: Catedra de Substanţe Bioactive si Biotehnologii Medicale, Facultatea de Bioinginerie Medicală, Universitatea de Medicină si Farmacie "Gr. T. Popa", Iaşi.
authors.forename: Anca-Irina
authors.initials: AI
authors.lastname: Galaction
authors.forename: Alexandra-Cristina
authors.initials: AC
authors.lastname: Blaga
authors.forename: D
authors.initials: D
authors.lastname: Caşcaval
authors.forename: Elena
authors.initials: E
authors.lastname: Folescu
mesh_terms: D000588:Amines / Q000737:chemistry; D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification*; D001205:Ascorbic Acid / Q000737:chemistry / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010539:Permeability; D012997:Solvents / Q000737:chemistry; D013053:Spectrophotometry; D014815:Vitamins / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D000588:Amines; D000975:Antioxidants; D012997:Solvents; D014815:Vitamins; C016214:Amberlite LA-2; D001205:Ascorbic Acid