@article{adriano_filho_silva_giordano_gonçalves_2005,  title={Stabilization of penicillin G acylase by immobilization on glutaraldehyde-activated chitosan},  volume={22},  ISSN={0104-6632},  url={https://doi.org/10.1590/S0104-66322005000400005},  DOI={10.1590/S0104-66322005000400005},  number={4},  journal={Brazilian Journal of Chemical Engineering},  publisher={Brazilian Society of Chemical Engineering},  author={Adriano, W. S. and Filho, E. H. C. and Silva, J. A. and Giordano, R. L. C. and Gonçalves, L. R.B.},  year={2005},  month={Oct},  pages={529–538} }