@article{abreu_figueiredo_2019,  title={BROMELAIN SEPARATION AND PURIFICATION PROCESSES FROM PINEAPPLE EXTRACT},  volume={36},  ISSN={0104-6632},  url={https://doi.org/10.1590/0104-6632.20190362s20180417},  DOI={10.1590/0104-6632.20190362s20180417},  number={2},  journal={Brazilian Journal of Chemical Engineering},  publisher={Brazilian Society of Chemical Engineering},  author={Abreu, Danielly C. A. and Figueiredo, Kátia C. de S.},  year={2019},  month={Apr},  pages={1029–1039} }