| Title |
On the extraction of volatile fatty acids from food waste mixtures: Comparison between the use of liquid-liquid and magnetic nanoparticle technologies |
| ID_Doc |
29081 |
| Authors |
Lacroce, E; Rossi, F; Gianico, A; Gallipoli, A; Gelosa, S; Busini, V; Braguglia, CM; Masi, M |
| Title |
On the extraction of volatile fatty acids from food waste mixtures: Comparison between the use of liquid-liquid and magnetic nanoparticle technologies |
| Year |
2024 |
| Published |
|
| Abstract |
The extraction of volatile fatty acids (VFAs) from an aqueous solution derived by fermentation of food waste is a key challenge in the context of the circular economy, thanks to their high economic and environmental impact due to their wide-ranging use in various industrial fields. In this work, we compared two different extraction methods: one novel and one classical. Firstly, iron oxide nanoparticles of around 10 nm were prepared and used as they are or functionalised using (3-Aminopropyl)triethoxysilane) (APTES) molecules, adipic acid and oleic acid. This was compared with a traditional industrial method (liquid-liquid extraction) that can guarantee high extraction of VFAs with high reproducibility. Indeed the use of dichloromethane, hexane, methyl tert-butyl ether and oleic acid presented extraction values of up to 30 % while iron oxide NPs showed results with low reproducibility. The comparison demonstrated the use of oleic acid as a promising solvent for liquid-liquid extraction of VFAs. |
| PDF |
https://doi.org/10.1016/j.ces.2024.120370
|
