Fig. 1From: Purification and biofabrication of 5-aminolevulinic acid for photodynamic therapy against pathogens and cancer cellsEffect of sodium acetate (a, b) and ammonia (c, d) for elution of 5-ALA from IEC. Recovery by using (a) different concentration of sodium acetate at pH 3.5, and (b) 2 M CH3COONa with different pHs. Recovery by using (c) different concentration of ammonia at pH 11 and (d) 1 M NH4OH with different pHsBack to article page