@article{articleeed82ef7,
title   = {Bromelain purification through unconventional aqueous two-phase system (PEG/ammonium sulphate)},
author = {Coelho, Diego F and Silveira, Edgar and Pessoa Junior, Adalberto and Tambourgi, Elias Basile},
year = {2013},
doi = {10.1007/s00449-012-0774-5},
journal   = {Bioprocess and Biosystems Engineering}
}