scholarly journals Evaluation of Fertilizer Value of Residues Obtained after Processing Household Organic Waste with Black Soldier Fly Larvae (Hermetia illucens)

2020 ◽  
Vol 12 (12) ◽  
pp. 4920
Author(s):  
Kiyonori Kawasaki ◽  
Toshiya Kawasaki ◽  
Hirofumi Hirayasu ◽  
Yoshiki Matsumoto ◽  
Yasuhiro Fujitani
Keyword(s):  
Relative Abundance ◽  
Dry Matter ◽  
Organic Waste ◽  
Plant Pathogens ◽  
Ammonium Nitrogen ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Fertilizer Value ◽  
Black Soldier Fly Larvae ◽  
Dry Matter Weight

The residue generated by the black soldier fly (Hermetia illucens, BSF) during the processing of organic waste is considered a suitable crop fertilizer. However, no detailed studies have investigated the fertilizer value of the residue obtained from processing household organic waste. In this study, experimental household organic waste (EHOW) was processed by BSF at 200 mg of EHOW per head for 15 days at 27 °C. To evaluate the fertilizer value of the obtained BSF larvae production residue (BSFR), the chemical composition and microbiota were analyzed, and Komatsuna (Brassica rapa var. perviridis) cultivation tests were conducted. BSFR results demonstrated higher ammonium nitrogen and lower nitrate nitrogen, and the highest above-ground dry matter weight of Komatsuna. Although the relative abundance of Escherichia was low, the relative abundance of Xanthomonadaceae, which contains a genus that causes disease in plants, was high. Therefore, the presence of plant pathogens in the BSFR microbiota should be considered. Finally, the effects of BSFR on the external environment requires more detailed investigation.

scholarly journals Assessing the Microbiota of Black Soldier Fly Larvae (Hermetia illucens) Reared on Organic Waste Streams on Four Different Locations at Laboratory and Large Scale

2018 ◽  
Vol 77 (4) ◽  
pp. 913-930 ◽  
Author(s):  
E. Wynants ◽  
L. Frooninckx ◽  
S. Crauwels ◽  
C. Verreth ◽  
J. De Smet ◽  
...  
Keyword(s):  
Large Scale ◽  
Organic Waste ◽  
Waste Streams ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Black Soldier Fly Larvae ◽  
Fly Larvae

scholarly journals System development for production of black soldier fly larvae (Hermetia illucens) in small scale, using wild flies

2022 ◽  
Vol 11 (1) ◽  
pp. e20311124747
Author(s):  
Sandro Morais dos Santos ◽  
Paolo Lages Sequenzia ◽  
Elias Barbosa Rodrigues ◽  
Isabela Parolis Martins ◽  
Arlen Nicson Lopes Pena ◽  
...  
Keyword(s):  
Organic Waste ◽  
Egg Laying ◽  
Wire Mesh ◽  
Alternative Methods ◽  
Small Scale ◽  
Plant Residues ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Black Soldier Fly Larvae ◽  
Fly Larvae

Technological innovation in rural areas guarantees the maintenance and subsistence  of rural producers. Additionally, it is mandatory to use strategies aimed at reducing costs in animal production and reducing the environmental impact involved, making it challenging in the current global scenario. Thus, it is necessary to develop new alternative methods of production aimed at small scales, which can be implemented in small properties with reduced capital investment. In this sense, the objective was to describe the development of a system capable of inducing the production of black soldier fly larvae-BSFL (Hermetia illucens) through the attractiveness of egg laying of wild adults. To make the larvae production system, the following were needed: a plastic drum, with a capacity of 200 liters, 10 meters of 8mm silk rope, 1.5 m2 of wire mesh with 25mm x 20mm mesh, 1 m2 3mm x 2mm nylon mesh, plastic faucet for draining the slurry, one meter of 20mm diameter hose, two plastic containers with capacity of 20 liters for collecting the slurry and pre-pupae; besides equipment for cutting and finishing the drum. The System was supplied with organic plant material from daily household disposal, and other plant residues produced on the property. The development of this System can provide great social and economic viability, as it can be implemented in small rural properties for the treatment of organic waste. The mechanism presented good performance for the recycling of organic waste, and also for the production of BSFL, with satisfactory quantity collected daily.

scholarly journals Staphylococcus aureus in Substrates for Black Soldier Fly Larvae (Hermetia illucens) and Its Dynamics during Rearing

2021 ◽  
Vol 9 (3) ◽  
Author(s):  
E. Gorrens ◽  
N. Van Looveren ◽  
L. Van Moll ◽  
D. Vandeweyer ◽  
D. Lachi ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Organic Waste ◽  
Waste Streams ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Content Type ◽  
Black Soldier Fly Larvae ◽  
Fly Larvae

Given the increasing need for (more sustainable) methods to upcycle organic waste streams, the interest to rear insects, like black soldier fly larvae (BSFL), on such streams is increasing. This study reveals that S. aureus is abundantly present in such waste streams, which might be a point of attention for insect producers.

Valorisation of organic waste material: growth performance of wild black soldier fly larvae (Hermetia illucens) reared on different organic wastes

2017 ◽  
Vol 3 (3) ◽  
pp. 193-202 ◽  
Author(s):  
E.M. Nyakeri ◽  
H.J.O. Ogola ◽  
M.A. Ayieko ◽  
F.A. Amimo
Keyword(s):  
Crude Protein ◽  
Organic Waste ◽  
Organic Wastes ◽  
Protein Source ◽  
Ether Extract ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Alternative Protein ◽  
Extract Content ◽  
Black Soldier Fly Larvae

Insects such as the black soldier fly (BSF; Hermetia illucens) are currently being promoted as an alternative protein source for animals and organic waste management agents. To play the dual roles sustainably, there is need to reduce reliance on wild BSF and develop an appropriate farming methodology for the insect. This study aimed at improving larvae production in a black soldier fly colony previously established from the wild in Kenya. The study explored the effect of four locally available organic wastes as feedstocks for production the black soldier fly larvae. Separate feeding trials on faecal sludge (FS), banana peelings (BP), brewer’s waste (BW) and restaurant food waste (FR) was done and their effect on BSF larvae growth rate, larvae weight, total prepupal yield in grams, crude protein and lipid (ether extract) content analysed. The efficiency of the BSF larvae to consume and therefore reduce the waste load of the different substrates was also evaluated. Results showed that BSF larvae fed on FR had significantly higher (P<0.05) total mean yield and average individual weight of 196.9±4.0 g and 0.101±0.002 g, respectively, followed by BW (154.8±6.5 g, 0.078±0.02 g), FS (138.7±5.0 g, 0.070±0.001 g) and with BP the lowest (108.9±5.6 g, 0.055±0.002 g). The harvested BSF larvae crude protein was significantly higher for FS and BW at 45.4±0.1% and 43.0±1.0%, respectively. However, ether extract content was variable and dependent on feedstock used with lower values reported for FS and BW (18.1±0.3% and 27.2%, respectively), and highest for food remains prepupa (36%). Dry matter reduction ranged between 50.3-81.8% with corresponding bioconversion and feed conversion rates ranging from 14.9-20.8% and 2.6-4.5, respectively, was achieved for the substrates used. These results indicated the potential of utilising BSF composting in valorisation of the local organic wastes for their bioremediation from the environment. Due to their availability in large quantities and their low cost, these organic wastes can form important feedstock resources for the sustainable production of BSF larvae as a future alternative protein source for both animal feeds at farm level and industrial scale. In conclusion, embracing nutrient recycling through BSF technology by resource-constrained farmers in Kenya will contribute to food security through supply of proteins for production of poultry and fish.

scholarly journals Chemical safety of black soldier fly larvae (Hermetia illucens), knowledge gaps and recommendations for future research: a critical review

2021 ◽  
pp. 1-14
Author(s):  
S. Lievens ◽  
G. Poma ◽  
J. De Smet ◽  
L. Van Campenhout ◽  
A. Covaci ◽  
...  
Keyword(s):  
Organic Waste ◽  
Future Research ◽  
Waste Streams ◽  
Knowledge Gaps ◽  
Chemical Safety ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Industrial Sectors ◽  
Black Soldier Fly Larvae ◽  
Fly Larvae

Black soldier fly larvae (Hermetia illucens) (BSFL) are a promising protein source for the feed industry. They can be used to convert organic waste into valuable biomass, and due to their chemical composition, they are a valuable ingredient for several industrial sectors. To use BSFL as a feed ingredient, their chemical safety must be guaranteed. The composition of their rearing substrate is one of the crucial factors for safety, since it might introduce safety risks by bioaccumulation of various (in)organic compounds (e.g. toxic metals, mycotoxins, pesticides, etc.) in BSFL. Though several organic waste streams are potential and valuable rearing substrates for BSFL, the European Union currently does not allow their use due to safety knowledge gaps. This has prompted researchers to conduct several exposure experiments by artificially spiking chemicals to the rearing substrate of BSFL to investigate such risks. Here, we present a critical overview of the current body of literature on this topic and discuss the main findings, gaps, and recommendations for future research. Overall, BSFL do not seem to accumulate contaminants above the European feed legislation limits, except for certain metals (i.e. cadmium, lead, and zinc), which can jeopardise the chemical safety of the BSFL. For all compounds explored to date, except for cyromazine and pyriproxyfen, their presence in the substrate has no effect on the larval growth or survival rate. However, the remaining knowledge gaps concerning other potential hazardous chemicals (e.g. plasticisers, flame retardants, etc.) and their degradation pathways in BSFL still warrant an appropriate chemical safety assessment and can be a reason why several organic waste streams are not yet allowed to grow BSFL. The risks induced by the potential presence and accumulation of other chemical compounds requires further research to enable the safe exploitation of BSFL.

scholarly journals Feeding live Black Soldier Fly larvae (Hermetia illucens) to laying hens: effects on feed consumption, hen health, hen behaviour and egg quality

2021 ◽  
pp. 101400
Author(s):  
Fernanda M. Tahamtani ◽  
Emma Ivarsson ◽  
Viktoria Wiklicky ◽  
Cecilia Lalander ◽  
Helena Wall ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Feed Consumption ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Black Soldier Fly Larvae ◽  
Fly Larvae

scholarly journals Conversion of Spent Coffee and Donuts by Black Soldier Fly (Hermetia illucens) Larvae into Potential Resources for Animal and Plant Farming

Insects ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 332
Author(s):  
Hayden Fischer ◽  
Nicholas Romano ◽  
Amit Kumar Sinha
Keyword(s):  
Organic Waste ◽  
Glycogen Content ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Hermetia Illucens Larvae ◽  
Nitrogen Phosphorus ◽  
Dough Stage ◽  
Plant Farming

Nutritionally unbalanced organic waste can be converted into potential resources for animal and plant farming by culturing black soldier fly (Hermetia illucens) larvae (BSFL) and prepupae (BSFP). BSFL and BSFP are rich sources of protein and lipids, while the leftover excrement called “frass” can be used as an organic fertilizer. Using readily available resources, BSFL were cultured on spent coffee, donut dough or an equal blend for 35 days. Survival, productivity, daily pupation and biochemical composition of BSFL and BSFP were measured along with the nitrogen-phosphorus-potassium values of the frass. Survival was highest in the blend compared (81%) to spent coffee (45%) or dough (24%); however, BSFL and BSFP were significantly longer and heavier from dough. Stage and food significantly influenced the protein, lipid and glycogen content of the BSFL and BSFP, which tended to be higher in the latter. While fatty acids were often significantly higher in BSFL fed spent coffee, the amino acid composition of BSFL was generally higher in dough. Frass from the blend had significantly highest nitrogen content, while potassium and phosphorus were significantly higher and lower from spent coffee, respectively. Although coffee and donut dough were suboptimal substrates for BSFL, a blend of these produced BSFL and frass that were nutritionally comparable to soybean meal and many organic fertilizers, respectively.

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