@article{ma_sun_hao_xu_2016,  title={Production, purification and characterization of an exo-polygalacturonase from <i>Penicillium janthinellum</i> sw09},  volume={88},  ISSN={0001-3765},  url={https://doi.org/10.1590/0001-3765201620150051},  DOI={10.1590/0001-3765201620150051},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={MA, YUPING and SUN, SIWEN and HAO, HUI and XU, CHUNPING},  year={2016},  pages={479–487} }