Cellulose microfibrils from banana farming residues: Isolation and characterization

Robin Zuluaga, Jean Luc Putaux, Adriana Restrepo, Iñaki Mondragon, Piedad Gañán

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

173 Citas (Scopus)

Resumen

Cellulose microfibrils have been prepared from banana rachis using a combination of chemical and mechanical treatments. The morphology and structure of the samples were characterized using transmission electron microscopy, atomic force microscopy, and X-ray diffraction. Fourier-transformed infrared spectroscopy (FTIR) was used to characterize the chemical modifications of the samples after each treatment. Suspensions of bundled or individualized 5-nm-wide microfibrils were obtained after homogenization (PH) whereas an organosolv (PO) treatment resulted in shorter aggregates of parallel cellulose microcrystallites. The sharper rings in the X-ray diffraction pattern of the PO-treated sample suggest a higher crystallinity due to a more efficient removal of hemicelluloses and dissolution of amorphous zones by the acid treatment. Both microfibrils and microcrystals prepared by both methods can be used as reinforcing filler in nanocomposite materials.

Idioma originalInglés
Páginas (desde-hasta)585-592
Número de páginas8
PublicaciónCellulose
Volumen14
N.º6
DOI
EstadoPublicada - dic. 2007
Publicado de forma externa

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