Black soldier fly larvae as an alternative feed source and agro-waste disposal route – A life cycle perspective
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Life cycle assessment (LCA) was applied to evaluate black soldier fly production using different diets, including typical Belgian agro-residues (Brussels sprout stems, endive roots and solid fraction pig manure). The LCA compared insect-based feed with soybean meal and fishmeal, and composting through insects versus conventional treatments. Underlying LCA data were derived through feeding experiments. To determine the sensitivity of the results, we tested the effect of alternative energy sources and dietary components. Non-residue insect feed and energy use contributed greatly to overall environmental impacts. Insect protein had greater impacts than protein from soybean meal or fishmeal due to the high energy consumption and, in some cases, agro-product demands. These should be areas of focus to make European insect production more sustainable. In the case of Brussels sprout stems and endive roots, conventional treatments outperformed composting by insects. Between industrial versus insect pig manure composting, the results varied greatly by energy source and impact category.
Originalsprog | Engelsk |
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Artikelnummer | 106917 |
Tidsskrift | Resources, Conservation and Recycling |
Vol/bind | 192 |
Antal sider | 9 |
ISSN | 0921-3449 |
DOI | |
Status | Udgivet - 2023 |
Bibliografisk note
Funding Information:
We would like to thank Giuliana d'Imporzano from the University of Milan (Italy) for her great support for understanding and modelling mass flows as well as for her methodological input. We would also like to thank Viktoria Wiklicky from the Swedish University of Agricultural Sciences in Uppsala for answering several questions about their black soldier fly breeding experiments and facilities. We would also like to thank Francisco Verdugo González from CARTIF (Spain) for his useful comments and suggestions regarding LCA modelling and system definitions. We would like to thank the EU and the Horizon 2020 project Nutri2Cycle (#773682) for fully funding the research conducted in this study.
Funding Information:
The research was undertaken as a part of the Nutri2Cycle project that receives funding from the European Union's Horizon 2020 Framework Programme for Research and Innovation under Grant Agreement no. 773682 . This manuscript reflects the authors’ view only. The EU is not liable for any use that may be made of the information contained therein.
Publisher Copyright:
© 2023 The Author(s)
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