RT Journal Article
T1 Pursuing single or combined wheat straw based poly(butylene succinate) production routes: A life cycle approach of first- and second-generation feedstocks
A1 Rebolledo Leiva, Ricardo
A1 Ladakis, Dimitrios
A1 Ioannidou, Sofia-Maria
A1 Koutinas, Apostolis
A1 Moreira Vilar, María Teresa
A1 González García, Sara
K1 PBS
K1 Life cycle assessment
K1 Bioplastics
K1 Polymers
K1 Bioeconomy
AB The depletion of fossil resources and the climate change crisis call for an urgent shift to production pathways based on renewable and low-carbon sources. In addition, plastic pollution worldwide motivates the identification of new sources for their bio-based counterparts, which have an increasing demand. This research aims to evaluate the environmental feasibility of different cereal-based feedstocks for the production of poly(butylene succinate) (PBS), which is obtained from the polymerisation of succinic acid (SA) and 1,4 butanediol (BDO) monomers. The baseline scenario analysed corresponds to the use of wheat straw as a source of the fermentable sugars. Furthermore, five other cereal-based production routes combining first-generation (1G) feedstocks such as wheat and maize grain, and second-generation (2G) feedstocks, such as sorghum, barley straw, and maize stover, combined with wheat straw, were evaluated. The Life Cycle Assessment (LCA) methodology was used to identify the main hotspots of these valorisation routes at the early stage of the biorefinery design, considering all the burden categories provided by the ReCiPe impact method. The results showed that the straw-based PBS profile reached a Global Warming Potential of 3.43 kg CO2eq, whereas a range value from 2.34 to 7.27 kg CO2eq was estimated when wheat straw is combined with sorghum and barley straw, respectively. The pre-treatment stage represents a substantial impact on the strategy considered to produce fermentable sugars, particularly, for barley straw. Therefore, improvements are still required to reduce the energy demand and increase the sugar yield
PB Elsevier
SN 2214-9937
YR 2023
FD 2023-08-06
LK http://hdl.handle.net/10347/31271
UL http://hdl.handle.net/10347/31271
LA eng
NO Sustainable Materials and Technologies 37 (2023) e00683
NO This research is supported by the project Enhancing diversity in Mediterranean cereal farming systems (CerealMed), funded by PRIMA Programme and FEDER/Ministry of Science and Innovation– Spanish National Research Agency (PCI2020-111978) and the project Transition to sustainable agri-food sector bundling life cycle assessment and ecosystem services approaches (ALISE), funded by the Spanish National Research Agency (TED2021-130309B-I00). R.R.L., M.T.M., S.G.G. belong to the Galician Competitive Research Group (GRC ED431C-2021/37) and to the Cross-disciplinary Research in Environmental Technologies (CRETUS Research Center, ED431E 2018/01)
DS Minerva
RD 28 abr 2026