[1] Albertsson, P. A., "Partition of Cell Particles and Macromolecules", 3rd Ed., New York, John Wiley & Sons, (1986).
[2] Ratio-Palomares, M., Practical Application of Aqueous Two-Phase Partition to Process Develop-ment for the Recovery of Biological Products, J. Chromatogr. B, 807,3 (2004).
[3] Hatti-Kaul, R., "Methods in Biotechnology: Aqueous Two-Phase Systems: Methods and Protocols", Humana Press Inc., Totowa, NJ, (1999).
[4] Bensch, M., Selbach, B. and Hubbuch, J., High Throughput Screening Techniques in Downstream Processing: Preparation, Characterization and Opti-mization of Aqueous Two-Phase Systems, Chem. Eng. Sci., 62, 2011 (2007).
[5] Rahimpour, F., Mamoa, G., Feyzi, F., Maghsoudi, S. and Hatti-Kaul, R., Optimizing Refolding and Recovery of Active Recombinant Bacillus Halodurans Xylanase in Polymer-Salt Aqueous Two-Phase System Using Surface Response Analysis, J. Chromatogr. A, 1141, 32 (2007).
[6] Huddleston, J., Veide, A., Kohler, K., Flanagan, J., Enfors, S. and Lyddiatt, A., The Molecular Basis of Partitioning in Aqueous Two-Phase Systems, Trends Biotechnol., 9, 381 (1991).
[7] Tub´ıo, G., Nerli, B. and Pic´o, G., Partitioning Features of Bovine Trypsin and Chymotrypsin in Polyethyleneglycol-Sodium Citrate Aqueous Tow-Phase Systems, J. Chromatogr. B, 852, 244 (2007).
[8] Shibusawa, Y., Takeuchi, N., Tsutsumi, K., Nakanoa, S., Yanagida A., Shindo, H. and Ito, Y., One-Step Purification of Histone Deacetylase from Escherichia Coli Cell-Lysate by Counter-Current Chromato-graphy Using Aqueous Two-Phase System, J. Chromatogr. A, 1151, 1583 (2007).
[9] Asano, Y., "Phenylalanine Dehydrogenase In: Ency-clopedia of Bioprocess Technology: Fermen-tation, Biotechnology and Bioseparation, (Flinckinger, M. C. and Drew, S. W., Eds.), Vol. 2, John Wiley & Sons, Inc., New York, USA, pp. 1955-63 (1999).
[10] Weiss, D. J., Dorris, M., Loh, M. and Peterson, L., Dehydrogenase Based Reagentless Biosensor for Monitoring Phenylketonuria, Biosens. Bioelectron, 22, 2436 (2006).
[11] Tachibana, S., Suzuki, M. and Asano, Y., Application of an Enzyme Chip to the Microquantification of L-phenylalanine, Anal. Biochem., 359,72 (2006).
[12] Busca, P., Paradisi, F., Moynihan, E., Maguire, A. R. and Engel, P. C., Enantioselective Synthesis of Non-Natural Amino Acids Using Phenylalanine Dehydrogenases Modified by Site-Directed Mutagenesis, Org. Biomol. Chem., 2, 2684 (2004).
[13] Mihara, H., Muramatsu, H., Kakutani, R., Yasuda, M., Ueda, M., Kurihara, T. and Esaki, N., N-Methyl-L-amino Acid Dehydrogenase from Pseudomonas putide: A Novel Member of an Unusual NAD(P)+-Dependent Oxidoreductase Superfamily, Eur. J. Biochem., 272, 1117 (2005).
[14] Omidinia, E., Taherkhani, H., Asano, Y., Khatami, S., Omumi, A., Ghadiri, A., Van der Lelie, D., Rashid Pouraie, R., Mirzahoseini, H. and Samadi, A., Affinty Purification and Characterization of Recombinatant Bacillus sphaericus Phenylalanine Dehydrognase Produced by PET Expression Vector System, Iran Biomed. J., 6, 31 (2002).
[15] Bradford, M. M., A Rapid and Sensitive for the Quantitation of Microgram Quantities of Protein Utilizing the Principle of Protein-Dye Binding, Anal. Biochem., 72,248. (1976).
[16] Albertsson, P. A., Cajarville, A., Brooks, D. E. and Tjerneld, F., Partition of Proteins in Aqueous Polymer Two-Phase Systems and the Effect of Molecular Weight of the Polymer, Biochem. Biophys. Acta., 926, 87 (1987).
[17] Forciniti, D., Hall, C. K. and Kula, M. R., Influence of Polymer Molecular Weight and Temperature on Phase Composition in Aqueous Two-Phase Systems, Fluid Phase Equil., 61, 243 (1991).
[18] Forciniti, D., Hall, C. K. and Kula, M. R., Protein Partitioning at the Isoelectric Point: Influence of Polymer Molecular Weight and Concentration and Protein Size, Biotechnol. Bioeng, 38, 986 (1991).
[19] Bim, M. A., and Franco, T. T., Extraction in Aqueous Two-Phase Systems of Alkaline Xylanase Produced by Bacillus pumillus and its Application in Kraff Pulp Bleaching, J. Chromatogr. B, 743, 394 (2000).
[20] Guo-qing, H., Xiu-yan, Z., Xing-jun, T., Qi-he, C. and Hui, R., Partitioning and Purification of Extracellular β-1, 3-1, 4-Glucanase in Aqueous Two-Phase Systems, J. Zhejiang Univ. Sci., 6B, 825 (2005).
[21] Su, C. K. and Chiang , B. H., Partitioning and Purification of Lysozyme from Chicken Egg White Using Aqueous Two-Phase System, Process Biochem., 41, 257 (2006).
[22] Bradoo, S., Saxena, R. K. and Gupta, R., Partitioning and Resolution of Mixture of Two Lipase from Bacillus stearothermophilus SB-1 in a Aqueous Two-Phase System, Process Biochem., 35, 57 (1999).
[23] Wongmongkol, N. and Prichanont, S., Partition of Alkaline Protease in Aqueous Two-Phase Systems of Polyethylene Glycol 1000 and Potassium Phosphate, Korean J. Chem. Eng., 23, 71 (2006).