Optimizing the conditions of phycocyanin extraction and purification from Spirulina sp.

Document Type : Original Article

Authors

1 Botany Department Faculty of Science – Mansoura University

2 Botany Department Faculty of Science – Mansoura University.

Abstract

Phycocyanin (C-Pc) is a natural pigment with extensive use in the food, cosmetic, and pharmaceutical industries. Spirulina sp. is regarded as a natural source of C-Pc. The optimal growth conditions increased the pigment content. The extraction and purification process are crucial steps that shouldn't be disregarded to keep phycocyanin's quality at maximum level. Several buffers and concentrations of (NH4)2SO4 were evaluated in this work to extract C-Pc. The optimal buffer was 100 mM KPB at pH 7 with a purity value of 0.809 and C-Pc concentration of 4.32 whereas, the optimal (NH4)2SO4 concentration was 65% with purity ratio 0.91 and the C-Pc concentrations was 4.47. Ion exchange chromatography was used to purify C-Pc, yielding a purity of 1.73 using 50 mM KPB PH 7.

Keywords