RT Journal Article
T1 Techno-economic and environmental assessment of dietary fibre extraction from soybean hulls
A1 Rebolledo Leiva, Ricardo
A1 Moreira Vilar, María Teresa
A1 González García, Sara
K1 Legume
K1 Life cycle assessment
K1 Techno-economic analysis
K1 Circular economy
K1 Waste valorisation
AB This research evaluates the economic and environmental feasibility of extracting dietary fibre (DF) from a by-product such as soybean hulls. Techno-economic (TEA) and life cycle assessment (LCA) were carried out to identify the critical factors that may limit the implementation of a potential biorefinery plant. The modelling of the process was carried out on the basis of mass and energy balances, as well as the characteristics of the required equipment. TEA indicators such as minimum selling price (MSP), fixed capital investment, manufacturing costs were evaluated. A cradle-to-gate LCA approach and a functional unit (FU) of 1 kg of product (85% DF content) were considered. Impact categories such as global warming (GW), eutrophication, eco-toxicity, among others, were analysed. The results indicate that the production capacity achieves the plateau at about 56 kt y−1, with an MSP value of 2.6 $·kg−1. Furthermore, the GW profile was 8.76 kg CO2eq per FU, and the main hotspot is the alkaline digestion stage due to the use of potassium hydroxide (KOH). Nevertheless, the management of the hulls from multi-product food plants and switching KOH production to renewable sources may reduce the profile in almost all categories analysed.
PB Elsevier
SN 2666-7894
YR 2024
FD 2024-07-03
LK https://hdl.handle.net/10347/42587
UL https://hdl.handle.net/10347/42587
LA eng
NO Rebolledo-Leiva, R., Moreira, M. T., & González-García, S. (2024). Techno-economic and environmental assessment of dietary fibre extraction from soybean hulls. Cleaner Environmental Systems, 14, 100208. https://doi.org/10.1016/J.CESYS.2024.100208
NO Transition to sustainable agri-food sector bundling life cycle assessment and ecosystem services approaches (ALISE) (TED2021–130309B-I00), funded by MCIN/AEI/10.13039/501100011033/ and the European Union NextGenerationEU/PRTR
DS Minerva
RD 24 abr 2026