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- Title
Procurement and characterization of cellulose nanocrystals from cassava bagasse (Manihot esculenta Crantz).
- Authors
Correa-Durán, Mónica S.; Bolio-López, Gloria I.; Veleva, Lucien; Ramírez-Casillas, Rogelio; Hernández-Villegas, Manuel M.; de la Cruz-Burelo, Patricia; Córdova-Sánchez, Samuel; Valerio-Cárdenas, Cintya
- Abstract
Objective: To procure and characterize cellulose nanocrystals from cassava bagasse. Design/methodology/approach: Cellulose nanocrystals were obtained from cassava bagasse by acid hydrolysis (HCI), ultrasonication, centrifugation, dialysis, deep freezing and lyophilization. The cassava bagasse and the cellulose nanocrystals obtained were physicochemically characterized by Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD) and Scanning Electron Microscopy with Coupled Elemental Analysis (SEM-EDS). As an additional technique, Atomic Force Microscopy (AFM) was used. Results: The analyses performed show that the cellulose obtained was type Iß. This study reports a percentage of crystallinity of the cassava bagasse cellulose of 37.1%, increasing the percentage to 48% crystallinity in cellulose nanocrystals. The diameters of the cassava bagasse fibers were reported to be 2 μm and their elemental composition (SEM-EDS) mainly constituted by carbon (C), oxygen (O) and traces of nitrogen (N). The morphology observed through AFM of the nanocrystals of cassava bagasse (Manihot esculenta) was rodshaped, with helicoidal appearance without residual charge, with diameters between 8.7 and 9.3 nm. Limitations on study/implications: The acid hydrolysis process showed a low percentage of crystallinity, although higher than other works reported for cassava bagasse. Findings/conclusions: The results obtained confirm the possibility of obtaining cellulose nanocrystals from cassava bagasse (Manihot esculenta).
- Subjects
CELLULOSE nanocrystals; BAGASSE; CASSAVA; ATOMIC force microscopy; SCANNING electron microscopy; INFRARED spectroscopy
- Publication
Agro Productividad, 2022, Vol 15, Issue 12, p137
- ISSN
2448-7546
- Publication type
Article
- DOI
10.32854/agrop.v15i12.2432