| Title |
Biorefinery perspective for industrial potato peel management: technology readiness level and economic assessment |
| ID_Doc |
6416 |
| Authors |
Almeida, PV; Gando-Ferreira, LM; Quina, MJ |
| Title |
Biorefinery perspective for industrial potato peel management: technology readiness level and economic assessment |
| Year |
2023 |
| Published |
Journal Of Environmental Chemical Engineering, 11, 3 |
| DOI |
10.1016/j.jece.2023.110049 |
| Abstract |
Potato peel (PP) is generated in high quantities and commonly wasted by potato processing industries. However, PP can be valorized through different routes while recovering value-added compounds and energy. There is an urgent need to evolve toward an appropriate circular management approach for human health and ecosystem protection. Biorefinery maximizes the valorization of residues while closing the carbon loop. PP has mainly been used for animal feed or biogas production through anaerobic digestion, but its value may increase by imple-menting the biorefinery concept. This work proposes and explores the integration of multiple processes for potato peel valorization. The potato chip industrial process was detailed, and the main outputs regarding extraction, anaerobic digestion, and composting were reviewed. The recovery of starch (with a yield of around 11 %), phenolic compounds (0.687-14.0 mgGAE/g), glycoalkaloids (40.9-5342 mg/kg), and energy (218-310 mL CH4/g on a volatile solid basis) has been studied by many authors, whereas mostly at the lab scale. The integration of multiple processes and techno-economic analysis for managing potato peel is still scarce. Even so, the literature points out biorefinery as a good strategy to treat and valorize residues. Well-designed biorefinery presented high net present values, internal return rates higher than 10 %, and low payback times. |
| Author Keywords |
Agro-industrial residues; Value-added compounds; Extraction; Energy recovery; Anaerobic digestion; Circular economy |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001041646200001 |
| WoS Category |
Engineering, Environmental; Engineering, Chemical |
| Research Area |
Engineering |
| PDF |
https://doi.org/10.1016/j.jece.2023.110049
|