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Food, fibre and pharmaceuticals from animals
REVIEW (Open Access)

Organic side streams (bioproducts) as substrate for black soldier fly (Hermetia illucens) intended as animal feed: chemical safety issues

Shanmugam Alagappan A B , Duncan Rowland C , Rob Barwell D , Daniel Cozzolino A , Deirdre Mikkelsen A E , Sandra M. Olarte Mantilla A , Peter James https://orcid.org/0000-0003-1237-0212 F , Olympia Yarger G and Louwrens Hoffman https://orcid.org/0000-0003-2736-1933 A B H *
+ Author Affiliations
- Author Affiliations

A Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Brisbane, Qld 4072, Australia.

B Fight Food Waste Cooperative Research Centre, Wine Innovation Central Building Level 1, Waite Campus, Urrbrae, SA 5064, Australia.

C Stock Feed Manufacturers Council of Australia, PO Box 151, Curtin, ACT 2605, Australia.

D Animal Health Australia, 95 Northbourne Avenue, Turner, ACT 2612, Australia.

E School of Agriculture and Food Sciences, Faculty of Science, University of Queensland, Brisbane, Qld 4072, Australia.

F Centre for Animal Science, Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Brisbane, Qld 4072, Australia.

G Goterra, 14 Arnott Street, Hume, ACT 2620, Australia.

H Department of Animal Sciences, University of Stellenbosch, Private Bag X1, Matieland, Stellenbosch 7602, South Africa.

* Correspondence to: louwrens.hoffman@uq.edu.au

Handling Editor: Reza Barekatain

Animal Production Science 62(17) 1639-1651 https://doi.org/10.1071/AN22155
Submitted: 21 April 2022  Accepted: 21 July 2022   Published: 19 August 2022

© 2022 The Author(s) (or their employer(s)). Published by CSIRO Publishing. This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND)

Abstract

The growing world population accompanied by urbanisation and improved economies has resulted in an increased demand for diets rich in animal proteins. The rearing of livestock by existing practices is also becoming increasingly difficult due to changing environmental conditions. The use of black soldier fly larvae (BSFL) grown on organic side streams (bioproducts) as feed for animals presents a sustainable alternative to conventional feed ingredients. The nutritional and compositional profile of BSFL reared on organic side streams and their potential to be used as animal feed has been extensively explored. However, little information is available on the chemical safety of BSFL reared on organic side streams. This review addresses the chemical safety hazards of BSFL reared on substrates spiked with different chemical contaminants, including heavy metals, mycotoxins, pesticides, and pharmaceuticals. BSFL were observed to excrete mycotoxins and were able to reduce the concentration of pesticides and pharmaceutical compounds in the substrate. Certain heavy metals were found to be accumulated in BSFL when grown on spiked substrate. Initial studies have also indicated that the growth parameters and composition of BSFL are not altered by the presence of microplastics and organic pollutants in the substrate. Information about these feed-safety issues will assist in developing regulatory frameworks and appropriate processing methods to mitigate these hazards, thereby providing a framework of risks for the commercialisation of BSFL destined for animal feed.

Keywords: Australian legislation, black soldier fly larvae, heavy metals, mycotoxins, organic side streams, pesticides, pharmaceuticals, safety.


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