Campus Units
Food Science and Human Nutrition
Document Type
Article
Publication Version
Accepted Manuscript
Publication Date
8-13-2019
Journal or Book Title
International Journal of Biological Macromolecules
Volume
139
First Page
1151
Last Page
1161
DOI
10.1016/j.ijbiomac.2019.08.115
Abstract
Cassava bagasse, a high-fiber coproduct of cassava starch processing, was used to produce lignocellulose nanofibers (LCNF) to apply as reinforcement in cassava starch films. LCNF-reinforced cast starch films were evaluated for changes in structural, thermal and mechanical properties and compared with control films reinforced with commercial grade nanoclay (Nclay). Five different types of cassava starch cast-films were produced: no-reinforcement control, two LCNF-reinforced, and two Nclay-reinforced, each at 0.65 and 1.3% w w−1. The LCNF morphology showed the characteristic microscopic structure of lignocellulose nanofibers, with an aspect ratio > 85 and average diameter of 4.5 nm. All reinforced films were transparent and had a good distribution of the nanoparticles within. The opacity values reduced for the films with all nanoreinforcements, compared to control. The permeability to water vapor reduced with reinforcements, with lower values for the films tested with LCNF 0.65 and Nclay 1.3. Thermal stability improved with 1.3% of LCNF and both concentrations of Nclay. Tensile stress for films increased and elongation at break value decreased with both types of nanoreinforcements.
Copyright Owner
Elsevier Inc.
Copyright Date
2019
Language
en
File Format
application/pdf
Recommended Citation
Travalini, Ana P.; Lamsal, Buddhi P.; Esteves Magalhaes, Washington L.; and Demiate, Ivo M., "Cassava starch films reinforced with lignocellulose nanofibers from cassava bagasse" (2019). Food Science and Human Nutrition Publications. 30.
https://lib.dr.iastate.edu/fshn_hs_pubs/30
Included in
Agricultural Science Commons, Food Chemistry Commons, Food Processing Commons, Human and Clinical Nutrition Commons, Molecular, Genetic, and Biochemical Nutrition Commons
Comments
This accepted article is published as Travalini, A.P., Lamsal, B., Magalhaes, W.L.E., Demiate, I.M. Cassave starch films reinforced iwth lignocellulose nanofibers from cassava bagasse. International Journal of Biological Macromolecules. (October 15, 2019) 139; 1151-1161. Doi: 10.1016/j.ijbiomac.2019.08.115. Posted with permission.