Cellulose nanofibers produced from banana peel by chemical and enzymatic treatment

By Heloisa Tibolla, F. M. Pelissari, F. Menegalli. 2014

304 citations recorded by the source corpus.

Abstract Cellulose nanofibers were isolated from banana peel bran using chemical treatment (CT—alkaline treatment, bleaching, and acid hydrolysis) and enzymatic treatment (ET—alkaline treatment and hydrolysis with xylanase). Both bran and cellulose nanofibers were characterized by size distribution, X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR); the morphological features of the bran and the nanostructures were studied by scanning (SEM) and transmission electron microscopy (TEM), respectively. TEM analysis evidenced that both treatments effectively isolated banana fibers in the nanometer scale. Nanofibers originating from CT and ET had an average diameter of 10.9 and 7.6 nm and a length of 454.9 and 2889.7 nm, respectively. The aspect ratio of all the samples lay in the range of long fibers. In neutral water, the nanofiber suspensions exhibited high and negative zeta potential, which prevented the nanofibers from aggregating and yielded a more stable colloidal suspension. XRD studies revealed that CT afforded more crystalline cellulose nanofibers (58.6%) as compared with ET (49.2%). FTIR confirmed that the treatments removed most of the hemicelluloses and lignin present in the banana fibers. Nanoparticles isolated from the banana peel by both treatments have potential application as reinforcing elements in composites.

Subfields: Biomaterials, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/0c59345e28ecf4bf94dd89971106b8f42a2ebcfa

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomaterials

1. A. Dufresne
2. Ning Lin
3. I. Ahmad
4. H. Kargarzadeh
5. Sabu Thomas
6. Jin Huang
7. M. Mariano
8. D. Gopakumar

In Polymers and Plastics

1. I. Ahmad
2. Ning Lin
3. H. Kargarzadeh
4. A. Dufresne
5. Jin Huang
6. Sabu Thomas
7. M. Mariano
8. D. Gopakumar

Citations in the corpus

• Nanocellulose from Agricultural Wastes: Products and Applications—A Review (2021, background): “Cellulose nanofibers (CNF), which are also called microfibrillated cellulose, cellulose microfibril or microfibrillar cellulose, are currently being the subject of interest to researchers due to their interesting nanocomposite applications.”
• Advances in cellulose nanomaterials (2018, methodology): “Various pretreatment techniques have been reported in the literature including the pulping process, bleaching and alkali treatments (Chirayil et al. 2014), enzymatic treatment (Tibolla et al. 2014), and oxidation (Cao et al. 2012; Missoum et al. 2013).”