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Chemical composition and pulping of banana pseudo-stems
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Orientador(es)
Resumo(s)
This paper deals with the determination of chemical composition and the study of the pulping potentialities of banana
pseudo-stems growing in Madeira Island (Portugal). First, the raw material was both studied as a whole (type I) and as the
outer bark part (type II), which is richer in cellulose fibres. Before starting the cooking of banana wastes, the main components
of the two types of material were quantified, and showed that the polysaccharide content was high enough (about 60–70%)
to justify the pulping investigations. Moreover, the lignin content was very low (approximately 12%). The only discouraging
finding was the relative high amounts of ashes and extractives. The pulping of these residues was carried out using soda, kraft
and soda-anthraquinone (AQ) cooking processes and the optimal pulping conditions were established. Thus, pulps with a yield
of about 37–38% with a Kappa number (Kappa no.) about 30–32 were obtained when cooking in the presence of 0.25–0.35%
of anthraquinone at 120 ◦C for a short cooking time, i.e. 30 min. The longer times and higher temperatures of cooking as well as
the use of kraft pulping conditions did not give rise to better performances, comparing to those mentioned above. These severe
conditions were detrimental to the hemicellulose preservation.
Descrição
Palavras-chave
Musa acuminata Colla Agricultural residues Non-wood pulp Annual plant Soda-anthraquinone pulps Fibres properties . Faculdade de Ciências Exatas e da Engenharia
Contexto Educativo
Citação
Cordeiro, N., Belgacem, M. N., Torres, I. C., & Moura, J. C. V. P. (2004). Chemical composition and pulping of banana pseudo-stems. Industrial Crops and Products, 19(2), 147-154.
Editora
Elsevier