D. Santori, A. Gelli, M. Meneguz, S. Mercandino, S. Cucci, E. Sezzi,
Microbiological stability of Hermetia illucens meal subjected to two different heat treatments,
Journal of Stored Products Research,
Volume 109,
2024,
102440,
ISSN 0022-474X,
https://doi.org/10.1016/j.jspr.2024.102440.
(https://www.sciencedirect.com/sc ... i/S0022474X24001978)
Abstract: The use of processed insect proteins for poultry and pig feed has been authorized since August 2021 (Regulation EU, 2021/1372). It has been already authorized for aquaculture since 2017 (Regulation EU, 2017/893). The adoption of this Regulation has boosted the European insect industry. However, there is currently little information regarding the evaluation of the shelf-life of insect-based feeds. The present work analyzed meals of Hermetia illucens that underwent two different treatments. The first treatment involved pre-sterilization at 80 ¡ãC for 2 h, and after that the larvae were subjected to treatment at 65 ¡ãC. The second treatment consisting in a heat treatment at 65 ¡ãC without pre-sterilization. The analysis performed for specific microbiological parameters, such as presence of ¦Â-glucuronidase positive Escherichia coli, Enterobacteriaceae, colony count at 30 ¡ãC, Salmonella spp., Listeria monocytogenes, Bacillus cereus, Clostridium perfringens, coagulase-positive Staphylococcus, yeasts and moulds, did not reveal any concerns about bacteria counts or pathogen presence.
Keywords: BSF meal; Feed safety; Hermetia illucens; Microbiological stability; Shelf-life
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