Impact of Killing and Processing Conditions on Edible Insect Quality for Food Applications

A special issue of Insects (ISSN 2075-4450).

Deadline for manuscript submissions: 31 March 2026 | Viewed by 106

Special Issue Editor


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Guest Editor
Food Technology Laboratory/ School of Chemistry and Food, Federal University of Rio Grande, Av Italy km 8, Carreiros, Rio Grande 96203-900, Brazil
Interests: Edible insects; Biodegradable materials; Wastewater treatment; Insects as bioindicators; Biodegradation and valorization of waste; Insects in circular economy; Eco-toxicological assessment; Environmental sustainabil-ity; Biopolymers and agro-industrial residues

Special Issue Information

Dear Colleagues,

Edible insects have gained global attention as a sustainable, nutritious, and environmentally friendly alternative to conventional animal protein sources. However, the post-harvest handling of these organisms—including slaughter methods, processing techniques, and storage conditions—plays a critical role in determining their final quality, safety, sensory properties, and nutritional value. 

This Special Issue aims to explore the influence of slaughter and processing parameters on the quality of edible insects for food applications. Topics of interest include, but are not limited to, the physiological and biochemical responses of insects to slaughter, the impact of thermal and non-thermal processing on nutritional, technological, and microbiological profiles, the optimization of insect preservation methods, regulatory considerations, and consumer acceptance of processing techniques.

We invite contributions that provide scientific insights, technological advances, and regulatory perspectives on how post-harvest processes affect the quality and safety of edible insects, supporting their integration into the human food chain.

We look forward to your valuable contributions.

Prof. Dr. Sibele Santos Fernandes
Guest Editor

Manuscript Submission Information

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Keywords

  • edible insects
  • killing methods
  • post-harvest processing
  • nutritional quality
  • processing technologies
  • insect-based foods
  • drying kinetics
  • insect processing

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Published Papers (1 paper)

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Research

16 pages, 981 KiB  
Article
Effect of Defatting Method on the Nutritional, Functional, and Bioactive Properties of Black Soldier Fly (Hermetia illucens) Larvae
by Natasha Spindola Marasca, Alan Carvalho de Sousa Araújo, Karoline da Silva Noda, Bruna Silva de Farias, Ana Paula Dutra Resem Brizio, Sibele Santos Fernandes and Vilásia Guimarães Martins
Insects 2025, 16(8), 844; https://doi.org/10.3390/insects16080844 - 15 Aug 2025
Abstract
Defatting methods are key to modulating the nutritional, functional, and bioactive characteristics of edible insect powders. This study evaluated the effects of mechanical pressing and ethanol-based solvent extraction on Hermetia illucens larvae powder. Solvent-defatted samples (DPSs) showed the highest protein content (54.96 g/100 [...] Read more.
Defatting methods are key to modulating the nutritional, functional, and bioactive characteristics of edible insect powders. This study evaluated the effects of mechanical pressing and ethanol-based solvent extraction on Hermetia illucens larvae powder. Solvent-defatted samples (DPSs) showed the highest protein content (54.96 g/100 g), with a 61% increase compared to full-fat powder (FP), and the lowest residual lipid content (3.18 g/100 g). In contrast, mechanical pressing (DPP) preserved higher antioxidant activity (68.30% DPPH inhibition), a 30% increase over FP. DPS also showed greater fiber content (13.90 g/100 g), improved water solubility, emulsification capacity, and reduced water activity (0.269), desirable traits for food formulations. DPP retained higher hygroscopicity and exhibited the highest antioxidant potential among the samples. These findings demonstrate that defatting method selection significantly impacts the techno-functional and nutritional quality of insect powders and should align with the desired end use, whether for protein enrichment, enhanced antioxidant activity, or development of sustainable food ingredients. This work supports the strategic use of Hermetia illucens as a functional, high-protein ingredient and reinforces its role in advancing circular and sustainable food systems. Full article
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