| Title |
Sustainable Production of Stiff and Crystalline Bacterial Cellulose from Orange Peel Extract |
| ID_Doc |
8634 |
| Authors |
Padmanabhan, SK; Lionetto, F; Nisi, R; Stoppa, M; Licciulli, A |
| Title |
Sustainable Production of Stiff and Crystalline Bacterial Cellulose from Orange Peel Extract |
| Year |
2022 |
| Published |
Sustainability, 14.0, 4 |
| DOI |
10.3390/su14042247 |
| Abstract |
In this work, a potentially economic and environmentally friendly method for the synthesis of bacterial cellulose (BC) by Gluconacetobacter xylinus from a biomass containing orange peel extract was evaluated. Orange peel extract was used as a culture medium without any hydrolysis treatment, thus speeding up the synthesis procedure. The efficacy of orange peel as a carbon source was compared with that of sucrose. The orange peel extract formed thicker cellulose gels than those formed using sucrose. X-ray diffraction (XRD) revealed both a high crystallinity index and crystallite size of BC nanofibers in samples obtained from orange peel (BC_Orange). Field emission scanning electron microscopy (FE-SEM) revealed a highly densely packed nanofibrous structure (50 nm in diameter). BC_Orange presented a two-fold increase in water holding capacity (WHC), and dynamic mechanical analysis (DMA) showed a 44% increase in storage modulus compared to sucrose derived BC. These results showed that the naturally available carbon sources derived from orange peel extract can be effectively used for BC production. The orange-based culture medium can be considered a profitable alternative to the generation of high-value products in a virtuous circular economy model. |
| Author Keywords |
bacterial cellulose; biopolymer; agro-industrial waste; biomass; viscoelastic properties; biomaterials; bioprocess; orange peel waste |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED); Social Science Citation Index (SSCI) |
| EID |
WOS:000763225800001 |
| WoS Category |
Green & Sustainable Science & Technology; Environmental Sciences; Environmental Studies |
| Research Area |
Science & Technology - Other Topics; Environmental Sciences & Ecology |
| PDF |
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