Room: Poster Area
Date: Wednesday, 20 May 2026
Time: 09:00 - 10:00 CEST
Session code 2BV.1
Carbon accounting for the bioeconomy
Reducing EU Dependence on Imported Feed Protein through Wild-harvested Ulva: A Prospective Consequential LCA of a Livestock Feed Biorefinery System
Short Introductive summary
The EU livestock sector relies heavily on imported protein concentrates, especially soybean meal. This dependence creates significant weaknesses in feed supply and leaves the system vulnerable to geopolitical issues and market fluctuations. Marine biomass presents a complementary resource, and the green macroalga Ulva has gained interest as a feed protein source. Its advantages include rapid growth, not needing arable land, and the ability to harvest it from nuisance green tides. This study looks at the Environmental performance of producing livestock feed protein from wild-harvested Ulva in a Danish biorefinery. In this facility, the main product is leaf protein concentrate, and byproducts are used through anaerobic digestion to create biomethane and fertilizer substitutes. Environmental impacts are assessed by using a prospective consequential Life Cycle Assessment that incorporates Shared Socioeconomic Pathways and climate mitigation plans for 2030, 2040, and 2050. Results indicate that the Ulva biorefinery can achieve lower greenhouse gas emissions than soybean meal in most scenarios, with outcomes influenced by substitution effects and the pace of background decarbonization.
Presenter
Amin SADEGHI SHESHDEH
University of Southern Denmark, DENMARK
Presenter's biography
Amin is a PhD candidate at the University of Southern Denmark, focusing on sustainable food and feed protein systems. His work applies different types of LCA, and TEA to assess food system impacts. He also has industry experience in wastewater and a background in civil and environmental engineering.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
T.A. Andrade, Aarhus University, DENMARK
A. Bruhn, Aarhus University, DENMARK
M. Ambye-Jensen, Aarhus University, DENMARK
M. Birkved, University of Southern Denmark, Odense, DENMARK
B. Khoshnevisan, University of Southern Denmark, Odense, DENMARK
Session reference: 2BV.1.15