Paper Title
Enhancement of C-Phycocyanin Purity by Chitosan Nanofiber Membrane

Abstract
In this work, the experiments were carried out with chitosan modified membrane to examine the adsorption characteristics of C-phycocyanin (C-PC) from disrupted Spirulinaplatensis. The influences of NaCl concentration (0.1-1.0 M), adsorption pH (6-8), chitosan concentration (0.1-3.0 %), C-PC concentration (0.05-0.50 mg/ml), and membrane flux (6.37x10-2-3.18x10-1mL/min•cm2)on the adsorption performance of the membrane for CPC were investigated. The results showed that the order of selectivity of the membrane for these proteins was found to be general protein (TP) > APC > C-PC. In this case, TP and APC molecules were more easily adsorbed by the chitosan modified membrane. On the contrary, the C-PC molecules would most easily penetrate the membrane without being adsorbed. Under these circumstances, the filtrate containing C-PC would enhance its purity. The purification factor and total mass flux were found to be 3.3 folds and 66%, respectively in a single step. Index Terms - Membrane, chitosan