Purification of Papain Using Reactive Green 5 Attached Supermacroporous Monolithic Cryogel |
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Authors: | Deniz Akta? Uygun Begüm Akduman Murat Uygun Sinan Akg?l Adil Denizli |
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Institution: | 1. Chemistry Department, Faculty of Science and Arts, Adnan Menderes University, Aydin, Turkey 2. Biochemistry Department, Faculty of Science, Ege University, Izmir, Turkey 3. Chemistry Department, Faculty of Science, Hacettepe University, Ankara, Turkey
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Abstract: | Supermacroporous poly(2-hydroxyethyl methacrylate) poly(HEMA)] monolithic cryogel was prepared by radical cryocopolymerization of HEMA with N,N??-methylene bisacrylamide as crosslinker. Reactive Green 5 dye was immobilized to the cryogel with nucleophilic substitution reaction, and this dye attached cryogel column was used for affinity purification of papain from Carica papaya latex. Reactive Green 5-immobilized poly(HEMA) cryogel was characterized by swelling studies, Fourier transform infrared spectroscopy, scanning electron microscopy, and energy dispersive X-ray analysis. Maximum papain adsorption capacity was found to be 68.5?mg/g polymer while nonspecific papain adsorption onto plain cryogel was negligible (3.07?mg/g polymer). Papain from C. papaya was purified 42-fold in single step with dye attached cryogel, and purity of papain was shown by silver-stained sodium dodecyl sulfate?Cpolyacrylamide gel electrophoresis. |
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