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Abstract The current study evaluated the potential enhancement of lauric acid (LA) in black soldier fly, Hermetia illucens, (L.) (Diptera: Stratiomyidae) larvae (BSFL), a source of this short-chain fatty acid which has antimicrobial and immunostimulatory properties. Replicate groups of BSFL were reared on either the coconut or Gainesville diet for 7 days. After the rearing period, BSFL were harvested, purged, dried, and subjected to proximate, fatty acid and amino acid compositions, and pepsin digestibility analyses. Results demonstrate changes in proximate composition. BSFL reared on the coconut had significantly (P = 0.002) higher lipid content (47.3% vs. 25.2%) on a dry-matter basis. The LA concentration in BSFL produced on the coconut was 31% greater than those reared on Gainesville, resulting in almost 150% more LA. Furthermore, BSFL-fed coconut had reduced crude protein (29.7% of dry weight) and ash (3.7% of dry weight) relative to those fed Gainesville (43.4% and 7.5% for crude protein and ash, respectively) but higher pepsin digestibility (91.0% vs. 87.0%). The relative amounts of various amino acids in the 2 BSFL meals did not differ extensively, with statistically lower concentrations of only phenylalanine and tryptophan and higher concentrations of alanine, arginine, isoleucine, leucine, and serine in BSFL reared on coconut. Results demonstrate that the nutritional composition of BSFL can be manipulated, and an enhancement of LA concentrations of 150% was achieved with coconut, which has value for BSFL as a feed for various livestock, including aquaculture. Lower protein content is a tradeoff in terms of BSFL value as a feed additive. 

The Black Soldier Fly (BSF), Hermetia illucens, represents a sustainable source of protein by converting organic waste into valuable products. BSF production requires minimal resources compared to traditional livestock and generates significantly lower greenhouse gas emissions (about 0.017 kg CO₂-eq per kg protein versus 57–500 kg CO₂-eq per kg protein for livestock). Diverting 1 % of global food waste to BSF production could yield an estimated 332,000 metric tonnes of protein annually and 1 million metric tonnes of organic fertilizer. This paper explores the economic, environmental, and operational dimensions of BSF production, focusing on supply chain strategies that optimize scalability and sustainability. Analyzing configurations such as vertical integration, distributed systems, and nucleus-plasma models, it identifies critical factors shaping supply chain design and environmental impacts. The findings emphasize the importance of supportive regulations, continued research investment, and strategic supply chain development. 

Behavioural research and its applications has a rich history in science with direct applications continuing to expand global understanding of ecosystem function, structure, and evolution. The same can be said for such research as related to the applied sciences including entomology. The purpose of this chapter is to provide context to various approaches for assessing behaviour of insects that are mass produced for food and feed. By using the black soldier fly as a model, various approaches for conducting such research are explored along with providing some perspective on the value of such data for optimising insect production. However, it should be noted that this chapter is not exhaustive with regards to variables that can be examined, or the methods employed. 

In 2013, the United Nations Food and Agriculture Organization identified insects as a promising solution for sustainably feeding the world’s growing population. However, despite a decade of development and innovation, the insect industry has yet to fully realize its environmental and economic potential. This review takes an evidence-based approach to addressing key challenges in the sector, including integrating circular production systems within existing regulatory frameworks in the Global North, ensuring product safety in circular systems, assessing allergen risks associated with insect-based products, mitigating biosecurity risks linked to non-native insect species, evaluating the environmental safety of insect by-products, and promoting animal welfare in insect production. While significant challenges remain, the evidence presented highlights how further research can help unlock opportunities for the industry to achieve its full potential globally. Ultimately, we argue that overcoming challenges – ‘working out the bugs’ – is a fundamental step in the evolution of any emerging industry. Furthermore, greater support for the transition to circular economies will accelerate the sector’s ability to generate meaningful environmental, ethical, and economic benefits. 

Circular bioeconomy employs advanced life science technologies to utilize renewable natural resources to produce goods and is a key part of the sustainable development strategy. Most circular-bioeconomy supply chains, however, are still in their infancy. We propose a conceptual model that characterizes the farm decision to adopt the circular use of agricultural residues such as animal waste and corn stover. The model highlights the complementarity between farm outputs and the residue and pins down key determinants of adoption. We illustrate how the economic forces work by examining two budding circular-bioeconomy supply chains—biochar and black soldier fly. 

The current study evaluated the potential enhancement of lauric acid (LA) in black soldier fly, Hermetia illucens, (L.) (Diptera: Stratiomyidae) larvae (BSFL), a source of this short-chain fatty acid which has antimicrobial and immunostimulatory properties. Replicate groups of BSFL were reared on either the coconut or Gainesville diet for 7 days. After the rearing period, BSFL were harvested, purged, dried, and subjected to proximate, fatty acid and amino acid compositions, and pepsin digestibility analyses. Results demonstrate changes in proximate composition. BSFL reared on the coconut had significantly (P = 0.002) higher lipid content (47.3% vs. 25.2%) on a dry-matter basis. The LA concentration in BSFL produced on the coconut was 31% greater than those reared on Gainesville, resulting in almost 150% more LA. Furthermore, BSFL-fed coconut had reduced crude protein (29.7% of dry weight) and ash (3.7% of dry weight) relative to those fed Gainesville (43.4% and 7.5% for crude protein and ash, respectively) but higher pepsin digestibility (91.0% vs. 87.0%). The relative amounts of various amino acids in the 2 BSFL meals did not differ extensively, with statistically lower concentrations of only phenylalanine and tryptophan and higher concentrations of alanine, arginine, isoleucine, leucine, and serine in BSFL reared on coconut. Results demonstrate that the nutritional composition of BSFL can be manipulated, and an enhancement of LA concentrations of 150% was achieved with coconut, which has value for BSFL as a feed for various livestock, including aquaculture. Lower protein content is a tradeoff in terms of BSFL value as a feed additive.