Carvalho, E.A. et al. 2012. Extraction and characterization of the pectin methylesterase (PME) of waste agroindustrial of the pineapple pearl. Semina: Ciências Agrárias. 33, 6 (Dec. 2012), 2257–2266. DOI:https://doi.org/10.5433/1679-0359.2012v33n6p2257.