title: [The extraction and transport of folic acid through liquid membranes].
abstract: The study on the extraction and transport of folic acid (vitamin B9) with Amberlite LA-2 underlined the significant influences of the pH-gradient on the aqueous phases, carrier concentration and mixing intensity, in correlation with the extraction mechanism. Thus, for reaching the maximum efficiency of folic acid separation, the pH-value of the initial aqueous phase of 5, 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: Universitatea de Medicină şi Farmacie "Gr.T. Popa" Iaşi, Facultatea de Bioinginerie Medicală, Catedra de Substante Bioactive şi Biotehnologii Medicale.
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
mesh_terms: D000588:Amines / Q000737:chemistry*; D005492:Folic Acid / Q000737:chemistry / Q000302:isolation & purification*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008567:Membranes, Artificial; D010539:Permeability; D004364:Pharmaceutical Preparations; D012997:Solvents / Q000737:chemistry*; D014803:Vitamin B Complex / Q000737:chemistry / Q000302:isolation & purification*; D014867:Water
chemical_list: D000588:Amines; D008567:Membranes, Artificial; D004364:Pharmaceutical Preparations; D012997:Solvents; D014867:Water; C016214:Amberlite LA-2; D014803:Vitamin B Complex; D005492:Folic Acid