Best conditions for chemical hydrolysis of xylan obtained from aristida pallens . Chromatographic separation of oligosaccharides - Spadaro, A C C; Prado, I M R; Del Ciampo, José Orestes; Vargas-Rechia, Carem Gledes; Rothschild, Z (Reuniao Anual da Sociedade Brasileira de Bioquimica e Biologia Molecular, 1993)