Resumen

VARGAS MESEN, Jairo; RODRIGUEZ MORA, Karina; JIRON GARCIA, Eddy  y  SAMANIEGO, Cesar Bernal. Nanocellulose production from pineapple leaves and palm oil rachis. Cuadernos de Investigación UNED [online]. 2023, vol.15, n.2, pp.59-76. ISSN 1659-4266.  http://dx.doi.org/10.22458/urj.v15i2.4593.

Introduction: Nanocellulose, the nanometer form of cellulose, can be produced through various methods, including chemical treatments, physical rupture, or their combination. Agro-industrial waste, like palm oil rachis and pineapple leaves, is commonly used as fuel or composting in plantations. However, it is not typically used for value-added products. Objective: To produce cellulose nanofibers starting with low-energy and low-input systems. Methods: We chemically characterized pineapple leaves and African palm oil rachis and subjected them to chemical degradation and mechanical treatments, to obtain cellulose nanofibers. The fibers were subsequently degraded with acetic acid (HOAc) and characterized using visible microscopy, fluorescence microscopy, infrared spectroscopy, X-ray diffraction, and transmission electron microscopy. Results: Pineapple leaves and African palm oil rachis had cellulose contents of 35,8 ± 0,5% and 17,9 ± 0,1%, respectively. We obtained nanofibers with thicknesses of 40nm and 10,8nm. Conclusion: The hybrid method of chemical treatment and mechanical rupture proved successful in obtaining fibrillar nanocellulose with low-concentration reagents.

Palabras clave : biomass; nanomaterials; technology; valuation; wastes..

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