Abstract
Magnetic alginate beads were used to purify α-amylases from porcine pancreas, starchzyme, BAN 240L (a commercial purification from Bacillus subtilis), and wheat germ. The beads bound a significant level of α-amylase activity from porcine pancreas, BAN 240L, and wheat germ. In each case, the enzyme activity could be eluted by using 1.0 M maltose, a known competitive inhibitor of α-amylase. In the case of BAN 240L, 3.6-fold purification with 72% recovery of activity was observed. In the case of wheat germ enzyme, starting from the crude extract, 48-fold purification with 70% activity recovery was observed. Sodium dodecyl sulfate polyacrylamide gel electrophoresis analysis also indicated considerable purification in the latter case.
Similar content being viewed by others
References
Safarik, I. and Safarikova, M. (1999), J. Chromatogr. 722, 33–53.
Safarik, I. and Safarikova, M. (1997), in Scientific and Clinical Applications of Magnetic Carriers, Hafeli, U., Schut, W., Teller, J., and Dorowski, M., eds., Plenum, New York, pp. 323–340.
Tyagi, R. and Gupta, M. N. (1995), Biocatal. Biotrans. 12, 293–298.
Worlock, A. J., Sidgwick, A., Horsburgh, T., and Bell, P. R. L. (1991), Biotechniques 10, 310–315.
Karlsson, G. B. and Platt, F. M. (1991), Anal. Biochem. 199, 219–222.
Sardar, M. and Gupta, M. N. (1998), Bioseparation 7, 159–165.
Walsh, G. and Headon, D. (1994) in Protein Biotechnology, Wiley, Chichester, pp. 321–322.
Smidsrod, O. and Skjak-Braek, G. (1990), Trends Biotechnol. 8, 71–78.
Decker, L. A. (1977), Worthington Enzyme Manual, Worthington Biochemical, Freehold, NJ.
Bradford, M. M. (1976), Anal. Biochem. 72, 248.
Hames, B. D. (1986), in Gel Electrophoresis of Protein: A Practical Approach, Hames B. D. and Rickwood, D., eds., IRL, Oxford, pp. 1–86.
Rozie, H., Somers, W., Bonte, A., Visser, J., van’t Riet, J., and Rombouts, F. (1988), Biotechnol. Appl. Biochem. 10, 346–358.
Burns, M. A., Kvesitadze, G. I., and Graves, D. J. (1985), Biotechnol. Bioeng. 27, 137–145.
Rozie, H., Somers, W., Bonte, A., Visser, J., Van’t Riet, K., and Rombouts, F. (1991), Biotechnol. Appl. Biochem. 13, 181–195.
Sharma, A., Sharma, S., and Gupta, M. N. (2000), Protein Exp. Purif. 18, 111–114.
Roy, I., Sardar, M., and Gupta, M. N. (2000), Enzyme Microb. Technol. 27, 53–65.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Teotia, S., Gupta, M.N. Purification of α-amylases using magnetic alginate beads. Appl Biochem Biotechnol 90, 211–220 (2001). https://doi.org/10.1385/ABAB:90:3:211
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1385/ABAB:90:3:211