Insect-based fish feed in decoupled aquaponic systems: Effect on lettuce production and resource use

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(1), P. e0295811 - e0295811

Published: Jan. 19, 2024

The utilisation of insect meal-based fish feed as a substitute for conventional is considered promising innovative alternative to boost circularity in aquaculture and aquaponics. Basic research on its use aquaponics limited. So far, no reports the effects waste water, derived from recirculating system using Black Soldier Fly (BSF) diets, were available growth performance lettuce. Therefore, this study aimed compare effect reusing water tilapia culture (as base nutrient solution) fed with diet (FM) BSF resource lettuce decoupled aquaponic systems. A hydroponics solution (HP) served control, inorganic fertilisers added all solutions reach comparable target concentrations. experiment was conducted controlled climate chamber nine separate units, three per treatment. Lettuce fresh dry weight, number leaves, relative leaf chlorophyll concentration, consumption, usage measured. Micro- macronutrients monitored time series. Similar yield seen treatments, significant values. Water plant also similar between while amount total fertiliser required 32% lower FM compared HP. Higher sodium concentrations found results confirm that BSF-based FM-based negative growth. Additionally, might be beneficial intensive, professional applications due concentration solution.

Language: Английский

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Role of carbon bioavailability in enhancing carbon sequestration and humification in Black Soldier Fly Larvae body and frass during chicken manure composting

Environmental Technology & Innovation, Journal Year: 2025, Volume and Issue: unknown, P. 104036 - 104036

Published: Jan. 1, 2025

Language: Английский

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Black Soldier Fly Culture as a Source of Chitin and Chitosan for Its Potential Use in Concrete: An Overview

Polymers, Journal Year: 2025, Volume and Issue: 17(6), P. 717 - 717

Published: March 8, 2025

Chitin is one of the most abundant biopolymers in nature and found mainly exoskeletons crustaceans insects, cell walls fungi, some species mollusks. Chitosan a derivative chitin; it much more accessible has broader range applications, including improving quality materials such as films, plastics, concrete. The rheological properties chitin chitosan refer to their behavior against deformation flow ability resist structural changes under mechanical stress conditions. These are fundamental applications where aim control texture, viscosity, handling these biopolymers. Three types methods for extraction can be classified: first chemical method, which presents high yields but uses reagents that generate toxic residues; second biological takes advantage reactions microorganisms cases low compared extraction; third enzymatic with production residues. However, also reported. One primary sources residue shellfish crustaceans. new source obtaining compounds black soldier fly, same shellfish. In addition, this fly larvae culture, protein, oil, biofertilizers generated by bioconversion organic waste. This work proposes an alternative extracting chitosan, using methodologies do not residues have yields. Including concrete elaboration could positive results terms flexibility, compressive strength, workability.

Language: Английский

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Recirculating frass from food waste bioconversion using black soldier fly larvae: Impacts on process efficiency and product quality

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 366, P. 121869 - 121869

Published: July 18, 2024

Biowaste generation is increasing worldwide and inadequate disposal has strong negative impacts on food systems ecosystems. Biodigestion of biowaste using black soldier fly (Hermetia illucens) larvae (BSFL) generates valuable by-products such as animal feed (larval biomass) organic fertiliser (frass). However, the latter typically unstable immediately after waste conversion thus unsafe for use a fertilizer in terms maturity. This study evaluated recirculation frass within bioconversion post-consumer (FW) dietary component BSFL to improve quality subsequent obtained. Frass was introduced at inclusion levels replacing (2.5–100% wet-weight basis) part larvae's feeding substrate. Bioconversion efficiency material reduction were significantly reduced by inclusion, while larval yield per experimental unit remained unchanged. When considering only diet, (dry-weight ranged between 207 (0% inclusion) 403 (40% kg tonne FW−1, up 94% higher inclusion. With rate from 0% 100%, crude protein content biomass increased 41%, fat 32%. The recirculated (obtained including diet) had elevated concentrations P, K, S, Na B around 6% lower matter content, demonstrating degree decomposition. diet generated that more stable mature, indicated self-heating capacity, CO2 NH3 volatilisation, seed germination bioassays other parameters. It concluded improves relation unit, well quality, ensuring safer fertilizer.

Language: Английский

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Advances in substrate source composition for rearing black soldier fly larvae as a protein source

Burleigh Dodds series in agricultural science, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 13, 2024

Over the last decade, interest in rearing black soldier fly (BSF, Hermetia illucens (L.), Diptera: Stratiomyidae) has grown exponentially. BSF larvae (BSFL) can be reared on any waste substrate, but type of substrate markedly impacts overall efficiency process as well composition larval biomass. It also influences environmental impact generated protein. In this chapter, we look at available streams for BSFL European Union and globally. We describe different parameters, addition to properties that influence efficiency, how substrates affect process, biomass impact. Later implications challenges faced by insect industry are discussed, along with ways which these met.

Language: Английский

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Sustainable Agriculture Through Agricultural Waste Management: A Comprehensive Review of Composting’s Impact on Soil Health in Moroccan Agricultural Ecosystems

Agriculture, Journal Year: 2024, Volume and Issue: 14(12), P. 2356 - 2356

Published: Dec. 21, 2024

Agricultural activities generate substantial quantities of waste, which are often relegated to landfills or incineration. However, these residues can be effectively valorized through composting, transforms them into valuable organic fertilizers (OF). Composting agricultural waste (AW) mitigates environmental impacts and offers significant benefits in enhancing soil fertility productivity. This practice is particularly beneficial regions with low degraded land, where compost improve health review provides a comprehensive analysis the literature on valorization AW focusing its environmental, agricultural, economic health, especially Morocco’s ecosystems. It synthesizes findings from studies published over past two decades offer critical insights recommendations for optimizing composting practices. By systematically evaluating, this highlights as pivotal strategy reducing impact, promoting sustainable management. Future research essential explore opportunities process, including content enhancement processing duration. In summary, process seen an effective solution that fits within principles circular economy (CE) requires careful evaluation ongoing monitoring.

Language: Английский

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Microcystin‐Lr‐Induced Changes in Growth Performance, Intestinal Microbiota, and Lipid Metabolism of Black Soldier Fly Larvae (Hermetia illucens)

Archives of Insect Biochemistry and Physiology, Journal Year: 2025, Volume and Issue: 118(2)

Published: Feb. 1, 2025

ABSTRACT Biological treatment by black soldier fly larvae (BSFL) has proven to be an effective method for the resource utilization of cyanobacteria, but effects microcystin‐LR (MC‐LR) in cyanobacteria on BSFL growth have not been adequately explored. To evaluate inhibitory effect and toxic mechanism MC‐LR BSFL, performance intestinal microbiota were examined after exposure 0, 10, 100, 1000 μg/kg MC‐LR. The larval weight survival rate each significantly inhibited 21.53% 21.49% compared with control group, respectively, at a concentration 16 days. Lipid accumulation, inflammation, oxidative stress observed three groups, dose‐dependent inflammation ocurring intestine. Compared superoxide dismutase catalase activity levels increased 74.91% 49.58%, which confirmed occurrence induced Furthermore, altered diversity relative abundance pathogenic bacteria (e.g., Paenibacillus , Clostridium_sensu_stricto_1 Lachnoclostridium ), risk disease contributed metabolic disorders. On other hand, qRT‐PCR analysis further activation peroxisome proliferator‐activated receptor signaling pathway, resulting upregulation fatty acid synthesis‐related genes, ultimately leading lipid accumulation apoptosis. These findings provide valuable insights into ecological risks associated during process cyanobacterial utilization.

Language: Английский

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The impact of scale and frass recirculation on pathogen inactivation dynamics in black soldier fly larvae bioconversion

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: March 27, 2025

A promising waste management technology that has emerged within the past decade is bioconversion of with larvae black soldier fly (BSFL). Regarding purposes, hygiene central. At present, most studies on BSFL conversion have been performed in small-scale laboratory settings, and mechanisms behind documented inactivation microorganisms remain unclear. In this study, dynamics pathogens indicator organisms during food was investigated. Two trials were conducted: one mimicking a large-scale industrial setup another evaluating impact frass recirculation pathogen reduction to better understand potential role bioactive compounds frass. The results indicate observed setups also applicable systems, no significant scale inactivation. primary difference between scales increased water evaporation larger leading higher electrical conductivity Increased solid retention time through did not significantly affect but considerably improved yield per treated tonne waste. clearly show linked larval presence activity. However, specific driving effect unclear—whether due produced by larvae, physico-chemical changes induced their activity, or combination both. Future research should focus microbial risks associated long-term further explore balance biological chemical factors.

Language: Английский

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Adding Fruit Fermentation Liquid Improves the Efficiency of the Black Soldier Fly in Converting Chicken Manure and Reshapes the Structure of Its Intestinal Microbial Community

Insects, Journal Year: 2025, Volume and Issue: 16(5), P. 472 - 472

Published: April 29, 2025

This study evaluated how fruit fermentation liquid (FFL) enhances the conversion of chicken manure by black soldier fly larvae (BSFL) and modulates their gut microbiota. Three groups were tested: control (A: 300 g + 50 water), low-dose FFL (B: 25 high-dose (C: FFL). The results show that dry matter rate significantly increased 9.5% (p < 0.05), while feed-to-larvae ratio was reduced 1.02 0.01) in group C. NH3 emissions C decreased 24.48 mg·kg−1·DM (dry substrate) day−1 (24.48 mg per kilogram substrate day) 0.01), with suppressed H2S release. Gut microbiota analysis revealed abundance Proteobacteria (6.07% decrease C) enriching Actinobacteriota (4.68% increase) beneficial genera (Corynebacterium, Gallicola). Substrate microbial diversity improved, Firmicutes increasing 11.07% 4.83%, respectively, pathogenic Sphingobacteriaceae declining 21.16% day 7. likely introduced organic acids nutrients, enhancing larval digestion nutrient absorption inhibiting production harmful gases. These findings demonstrate optimizes BSFL-driven waste efficiency through modulation microbiota, offering a sustainable strategy for management contributing to circular agricultural systems.

Language: Английский

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Hermetia illucens (Diptera: Stratiomyidae): Need, Potentiality, and Performance Measures

Agriculture, Journal Year: 2023, Volume and Issue: 14(1), P. 8 - 8

Published: Dec. 20, 2023

The research on black soldier fly (BSF; Hermetia illucens L.; Diptera: Stratiomyidae) rearing is the rise. larval ability to grow organic substances makes it an ideal candidate for bioconversion of agricultural and other side streams. While there are several publications variables influencing growth development different stages BSF, juxtaposing results could be amiss. This because experimental approaches units used by researchers. A few also lack information that might necessary comparing when using similar substrate conditions. In this review, we have analyzed studies such as type feeding substrate, depth aeration, temperature, moisture, pH, rate, density mainly, but not exclusively, larvae. For adults, factors cage size, density, light, ambient relative humidity considered. addition, performance fed with streams encapsulated. provides a backbone future researchers identify already assessed along their range encourages them define use standardized practices better comparison results.

Language: Английский

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