Purification of Pigments from Passif lora edulis Rind by Macroporous Resin Adsorption

Static adsorption and desorption experiments were conducted to screen the suitable macroporous resin for purifying pigments from Passif lora edulis rind.The conditions for static and dynamic adsorption and desorption were optimized.Results showed that macroporous resin HP-20 was the most favorable adsorbent for Passif lora edulis rind anthocyanins.The optimal static adsorption and desorption conditions were adsorption at 40 ℃ of samples at pH 4.0 and desorption with 90% acidified ethanol(pH 3.5).The optimal dynamic adsorption and desorption conditions were loading of 18.176 μ g/mL sample solution at a flow rate of 4.5 BV/h and gradient desorption with 6 BV of the desorption solvent at a flow rate of 3 BV/h.