Cellulose microfibrils from banana rachis: effect of alkaline treatments on structural and morphological features
Abstract
Four different alkaline treatments for isolation of cellulose microfibrils from vascular bundles of banana rachis were comparatively studied. Isolated cellulose microfibrils were characterized using high performance anion exchange chromatography for neutral sugar composition, as well as attenuated total reflection Fourier transform infrared spectroscopy, transmission electron microscopy, X-ray and electron diffraction and solid-state 13C NMR. The cellulose microfibrils treated with peroxide alkaline, peroxide alkaline–hydrochloric acid or 5 wt% potassium hydroxide had average diameters of 3–5 nm, estimated lengths of several micrometers. Although the interpretation of their structure is difficult because of the low cristallinity, X-ray diffraction, 13C NMR and ATR-FTIR results suggested that cellulose microfibrils from banana rachis could be either interpreted as cellulose IV(1) or cellulose Iβ. The specimens treated with a more concentrated KOH solution (18 wt%) were still microfibrillated but their structure was converted to cellulose II.
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Acid hydrolysis and enzymatic hydrolysis are the most commonly employed methods for cellulose nanoparticle isolation.
“Acid hydrolysis (Lu & Hsieh, 2012;Tonoli et al., 2012;Zuluaga et al., 2009) and enzymatic hydrolysis (George, Ramana, Bawa, & Siddaramaiah, 2011;Hassan, Mathew, Hassan, & Oksman, 2010;Pääkko et al., 2007;Satyamurthy, Jain, Balasubramanya, & Vigneshwaran, 2011;Woehl et al., 2010) are the most commonly employed methods.”
From Cellulose nanofibers produced from banana peel by chemical and enzymatic treatment (2014) · cites this paper as Zuluaga et al., 2009
The band at 1102 cm-1 in CNFs spectra was associated with changes in hydrogen bonds, suggesting transition from cellulose I to cellulose II.
“Probably, the band at 1102 cm À1 in CNFs spectra was associated with changes in hydrogen bonds, suggesting transition from cellulose I to cellulose II (Zuluaga et al., 2009).”
From Cellulose nanofibers produced from banana peel by chemical and enzymatic treatment (2014) · cites this paper as Zuluaga et al., 2009
The bleaching (CT) and alkaline treatment (ET) steps removed most of the lignin from the CNFs, as evidenced by the disappearance of bands at 1525 cm-1 and 761 cm-1 after these pretreatments.
“Fig. 6 evidences that the bleaching (CT) and alkaline treatment (ET) steps removed most of the lignin from the CNFs: the bands at 1525 cm À1 (aromatic ring vibration) and 761 cm À1 (CeH strains) disappeared after these pretreatments (Zuluaga et al., 2009).”
From Cellulose nanofibers produced from banana peel by chemical and enzymatic treatment (2014) · cites this paper as Zuluaga et al., 2009
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References 66 · Cited by 448
- Authors
- Zuluaga, R., Putaux, J. L., Cruz, J., Vélez, J., Mondragon, I., & Gañán, P.
- Affiliations
- Centre National de la Recherche Scientifique (FR)
- Universidad Pontificia Bolivariana (CO)
- Universidad Nacional de Colombia (CO)
- Corresponding author
- Gañán, Piedad
- Venue
- Carbohydrate Polymers
- Publisher
- Elsevier BV
- Published
- 2009-03
- Volume
- 76
- Issue
- 1
- Pages
- 51-59
- ISSN
- 0144-8617 (ISSN-L)
- OpenAlex
- W2007746711
- Cited by
- 448
- References
- 66
- Citations by year
- 2026: 14 · 2025: 8 · 2024: 33 · 2023: 30 · 2022: 34 · 2021: 26 · 2020: 31 · 2019: 31 · 2018: 28 · 2017: 35 · 2016: 29 · 2015: 34 · 2014: 21 · 2013: 28 · 2012: 27
- FWCI
- 5.59
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Carbohydrate Polymers (publishedVersion)
- HAL (submittedVersion)
- Funders
- Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
- Topics
- Physical Sciences › Materials Science › Biomaterials › Advanced Cellulose Research Studies
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Polysaccharides and Plant Cell Walls
- Physical Sciences › Engineering › Biomedical Engineering › Lignin and Wood Chemistry
- Keywords
- cellulose microfibrils, banana rachis, alkali treatment, potassium hydroxide, hydrochloric acid, cellulose crystallinity, cellulose Iβ, cellulose II, vascular bundles
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