Work

Replacement of soybean meal with duckweed in extruded aquafeeds: effects on production parameters and pellet water stability

Year: 2026

Type: conference-paper

Abstract: This study evaluated replacing soybean meal with dried duckweed powder (Lemna minor) at 100 g/kg and 200 g/kg inclusion levels in extruded feeds for golden grey mullets (Liza aurata). Incorporating duckweed enhanced starch gelatinization, which created a smoother melt flow, reducing extruder torque and specific mechanical energy (SME) demand. Duckweed inclusion lowered specific pellet density (SPD) and bulk density (BD). Furthermore, short-term water stability (WSI at 30 minutes) improved with duckweed addition due to high initial water-holding capacity, but prolonged immersion (90 minutes) at the 200 g/kg inclusion level led to structural collapse and lower long-term water stability

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.22096189

Authors: Banjac, Vojislav, Stojkov, Viktor, Pojić, Milica, Serradell Pastor, Antonio, Ferreira, Martiña, Mato, Ariadna

Institutions: University of Novi Sad, Institute of Food Technology, ANFACO-CECOPESCA

Language: English

Topic: Aquaculture Nutrition and Growth

Subfield: Aquatic Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDGs: Zero hunger, Responsible consumption and production

Open Access status: green

Funder: European Commission