Domingues, Paulo SimãoSousa, Helena PalaOliveira, Nelson SimõesRibeiro, Ana M.Ferreira, Alexandre2026-03-192026-03-192024-11Domingues, Paulo Simão & Sousa, Helena Pala & Oliveira, Nelson Simões & Ribeiro, Ana M. & Ferreira, Alexandre, 2024. "Determination of the biochemical methane potential of swine hydrolyzate," Renewable Energy, Elsevier, vol. 235(C).0960-1481http://hdl.handle.net/10400.8/15926Article number - 121287Swine farming generates remains of births and animals that die during the process. Implementing a plan to eliminate these materials by hydrolysis process results in an animal by-product called swine hydrolyzate. The treatment of this by-product through its application in the anaerobic digestion process can also represent its conversion into a resource for energy production. Thus, the present study focuses on this by-product as a potential substrate for anaerobic digestion, evaluating the methane production potential. The results show biogas production with an average methane content of about 70 %. Theoretical biochemical methane potential was 967.95 ± 0.11 mL g VS−1, which represented a bioconversion efficiency of 59.97 ± 3.54 % and 62.26 ± 0.43 %, considering the experimental results of 580.47 ± 34.29 mL g VS−1 and 602.67 ± 4.16 mL g VS−1, respectively. By comparing the experimental biochemical methane potential with the predicted value using the modified Gompertz model, it was possible to conclude that the maximum methane production rate was 73.46 ± 0.36 mL g VS−1 day−1, with a digestion time of 18 days to obtain 90 % of the methane production potential.engAmmonia inhibitionAnaerobic digestionBiogasBMP testsMethane productionSwine hydrolyzatejournal article2026-03-19cv-prod-461142110.1016/j.renene.2024.1212871879-06822-s2.0-85203424096