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Evaluation of the fat oxidation quality of commercialHermetia illucens meal

In: Journal of Insects as Food and Feed
Authors:
A. Mouithys-Mickalad Centre for Oxygen, Research & Development (CORD), University of Liege, Bât. B6a Allée du six Août 11, 4000 Liege, Belgium.

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N. Martin Tome Protix B.V., Industriestraat 3, 5107 NC Dongen, the Netherlands.

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T. Boogaard Nutrilab B.V., Burgstraat 12, 4283 GG Giessen, the Netherlands.

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D. Serteyn Centre for Oxygen, Research & Development (CORD), University of Liege, Bât. B6a Allée du six Août 11, 4000 Liege, Belgium.

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E. Schmitt Protix B.V., Industriestraat 3, 5107 NC Dongen, the Netherlands.

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A. Paul Protix B.V., Industriestraat 3, 5107 NC Dongen, the Netherlands.

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https://orcid.org/0000-0002-2720-8368
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Hermetia illucens meal is one of the most promising alternatives to fishmeal and soymeal. Fat oxidation quality of these products is crucial, as it directly influences the palatability of feed, and health of animals consuming it. During this study, oxidative quality of commercialH. illucens meal, fishmeal and soymeal was evaluated by measuring fatty acid profile, free fatty acid content, peroxide value,p-anisidine value and electron spin resonance spectra of lipid free radicals. Fishmeal and soymeal used in this study had antioxidants, either added (in fishmeal), or naturally present (in soymeal), whereasH. illucens meal had no added antioxidants. Results indicate that fishmeal contain high levels of lipid free radicals and secondary oxidation products, which may adversely affect the health of the animal consuming it. In contrast,H. illucens meal and soymeal are stable in terms of oxidative quality. The majority of soymeal consumed in Europe originates from South America, where soy farming is linked to several social and environmental challenges.H. illucens meal could be a local and sustainable alternative to fishmeal and soymeal. Oxidative stability ofH. illucens meal could be attributed to the short supply chain and careful design of the thermal processing step. In case ofH. illucens meal, thermal processing is effective enough to deactivate sn-1,3-lipase, while causing minimal damage to unsaturated triglycerides.H. illucens meal contain high levels of saturated fats and is thermally processed at mild conditions in comparison to fishmeal and soymeal. This may offer advantage toH. illucens meal in terms of fat oxidation quality.

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