@article{silva_franco_1999,  title={Purification of microbial b-galactosidase from Kluyveromyces fragilis by bioaffinity partitioning},  volume={30},  ISSN={0001-3714},  url={https://doi.org/10.1590/S0001-37141999000400006},  DOI={10.1590/S0001-37141999000400006},  number={4},  journal={Revista de Microbiologia},  publisher={Sociedade Brasileira de Microbiologia},  author={Silva, Maria Estela da and Franco, Telma Teixeira},  year={1999},  month={Oct},  pages={324–331} }