About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biosustainable Materials for a Circular Economy
|
| Presentation Title |
Valorization of Coffee Husk Parchment as a Sustainable Source of Cellulose Nanocrystals |
| Author(s) |
Roseméri Barbosa dos Santos da Silva, Henry Alonso Colorado Lopera, Felipe Perisse Duarte Lopes, Humberto Fantuzzi Neto, Michel Picanço Oliveira |
| On-Site Speaker (Planned) |
Henry Alonso Colorado Lopera |
| Abstract Scope |
The demand for renewable bio-based materials has become urgent and is driving the use of agro-industrial residues as resources for the development of bioproducts. In this context, the present study aims to investigate the properties of cellulose fibers extracted from coffee husk parchment (Coffea arabica). Cellulosic pulp was obtained through Kraft pulping, followed by bleaching with acetic acid and hydrogen peroxide. The morphological characteristics, crystallinity index, and thermal properties of the cellulose fibers were analyzed using electron microscopy, X-ray diffraction, and thermogravimetric analysis. The Kraft process proved effective in removing non-cellulosic compounds and in fiber individualization. Moreover, the fibers exhibited a crystallinity index of approximately 74%, with a crystallite size of 3.34 nm. The high crystallinity contributed to improved thermal stability, with maximum degradation observed at 348°C. The results confirm the potential of parchment as a promising source of cellulosic pulp for subsequent production of cellulose nanocrystals (CNCs). This study contributes to the valorization of agricultural by-products, promoting circular economy strategies and the advancement of nanomaterials. |
| Proceedings Inclusion? |
Planned: |