Martim, S. R.; Cardoso Neto, J.; Oliveira, I. M. de A. Physicochemical Characteristcs and Enzymatic Activity of Peroxidase and Polyphenoloxidase in Four Genotypes of cupuaçu (Theobroma Grandiflorum Willd Ex-Spreng Schum) Submitted to Freezing. Semina: Ciênc. Agrár. 2013, 34, 2265-2276.