Hermetia illucens Larvae as a Living Bioreactor for Simultaneous Food by‐Products Recycling and Useful Oil Production

2020 ◽  
Vol 97 (7) ◽  
pp. 717-727
Author(s):  
José L. Guil‐Guerrero ◽  
María J. Sánchez‐Muros ◽  
Dmitri Fabrikov ◽  
Borja Rodríguez‐Lozano ◽  
María J. González‐Fernández ◽  
...  
Keyword(s):  
Oil Production ◽  
Hermetia Illucens ◽  
By Products ◽  
Hermetia Illucens Larvae

scholarly journals Valorisation of Organic Waste By-Products Using Black Soldier Fly (Hermetia illucens) as a Bio-Convertor

2021 ◽  
Vol 13 (15) ◽  
pp. 8345
Author(s):  
Kieran Magee ◽  
Joe Halstead ◽  
Richard Small ◽  
Iain Young
Keyword(s):  
Food Waste ◽  
Fish Feed ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
High Quality Protein ◽  
The Face ◽  
Beet Pulp ◽  
By Products ◽  
Hermetia Illucens Larvae

One third of food produced globally is wasted. Disposal of this waste is costly and is an example of poor resource management in the face of elevated environmental concerns and increasing food demand. Providing this waste as feedstock for black soldier fly (Hermetia illucens) larvae (BSFL) has the potential for bio-conversion and valorisation by production of useful feed materials and fertilisers. We raised BSFL under optimal conditions (28 °C and 70% relative humidity) on seven UK pre-consumer food waste-stream materials: fish trimmings, sugar-beet pulp, bakery waste, fruit and vegetable waste, cheese waste, fish feed waste and brewer’s grains and yeast. The nutritional quality of the resulting BSFL meals and frass fertiliser were then analysed. In all cases, the volume of waste was reduced (37–79%) and meals containing high quality protein and lipid sources (44.1 ± 4.57% and 35.4 ± 4.12%, respectively) and frass with an NPK of 4.9-2.6-1.7 were produced. This shows the potential value of BSFL as a bio-convertor for the effective management of food waste.

scholarly journals Replacement of soybean cake by Hermetia illucens meal in diets for layers

2016 ◽  
Vol 2 (2) ◽  
pp. 83-90 ◽  
Author(s):  
V. Maurer ◽  
M. Holinger ◽  
Z. Amsler ◽  
B. Früh ◽  
J. Wohlfahrt ◽  
...  
Keyword(s):  
Food Industry ◽  
Egg Production ◽  
Dry Matter ◽  
Feeding Trial ◽  
Valuable Component ◽  
Hermetia Illucens ◽  
Significant Difference ◽  
Soybean Cake ◽  
By Products ◽  
Hermetia Illucens Larvae

Insects will likely play an important role as protein sources for livestock in the future. Many insect species are able to convert materials not suitable for human nutrition – or even waste – into valuable protein with a favourable amino acid composition for poultry and other livestock. A feeding trial with partly de-fatted meal of dried Hermetia illucens larvae (Hermetia meal) reared on vegetarian by-products of the pasta and convenience food industry was carried out in small groups of Lohmann Selected Leghorn laying hens (four rounds, 10 hens/round). Experimental diets H12 and H24 contained 12 and 24 g/100 g Hermetia meal replacing 50 or 100% of soybean cake used in the control feed, respectively. After three weeks of feeding experimental diets, there were no significant differences between feeding groups with regard to performance (egg production, feed intake). There was a tendency (P=0.06) for lower albumen weight in the H24 group; yolk and shell weights did not differ. No mortality and no sign of health disorders occurred. Plumage as well as wound scores remained stable during the feeding period and did not differ between treatments. Dry matter of faeces increased with increasing proportions of Hermetia meal in the diet, with a significant difference between H24 and the control (P=0.03). An increase of black faecal pads was observed in the H12 and H24 groups. Overall, these results suggest Hermetia meal can be a valuable component of layer diets. However, insect meal production still has to become economically more viable through upscaling production and, especially, legislative issues have to be solved.

scholarly journals Protein and Lauric Oil Production from Agricultural Waste Bioconversion by Hermetia Illucens Larvae

2021 ◽  
Author(s):  
Sêmele Silva Santos ◽  
Maryellen Batista dos Santos ◽  
Amanda de Aguiar Barreto ◽  
Emanuele Santos Prazeres ◽  
Ailton Pinheiro Lôbo ◽  
...  
Keyword(s):  
Agricultural Waste ◽  
Oil Production ◽  
Hermetia Illucens ◽  
Hermetia Illucens Larvae

The effect of dietary full-fat Hermetia illucens larvae meal on gut physiology and growth performance in young turkeys

2021 ◽  
Vol 275 ◽  
pp. 114879
Author(s):  
Jan Jankowski ◽  
Krzysztof Kozłowski ◽  
Zenon Zduńczyk ◽  
Anna Stępniowska ◽  
Katarzyna Ognik ◽  
...  
Keyword(s):  
Growth Performance ◽  
Hermetia Illucens ◽  
Gut Physiology ◽  
Hermetia Illucens 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.

scholarly journals Effect of Processed Beverage By-Product-Based Diets on Biological Parameters, Conversion Efficiency and Body Composition of Hermetia illucens (L) (Diptera: Stratiomyidae)

Insects ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 475
Author(s):  
Vassilios Sideris ◽  
Maria Georgiadou ◽  
Georgios Papadoulis ◽  
Konstantinos Mountzouris ◽  
Antonios Tsagkarakis
Keyword(s):  
Body Composition ◽  
Crude Protein ◽  
Larval Density ◽  
Mass Reduction ◽  
Spent Coffee Grounds ◽  
Hermetia Illucens ◽  
Protein Levels ◽  
Spent Grains ◽  
Coffee Grounds ◽  
By Products

The effect of spent coffee grounds (SCG), brewer’s spent grains (BSG) and their mixtures with the addition of brewer’s yeast (BY) were tested in two rearing densities of the Black Soldier Fly, Hermetia illucens (L.). Different treatments were investigated on larval development, survival, yield, protein conversion (PrCR) and bioconversion rate (BCR), substrate mass reduction and body composition of the insect. BSF larvae were able to develop sufficiently in all diets, except on sole SCG. The addition of BY enhanced the performance properties of diets, especially in the case of SCG, where larvae underperformed. Substrate mass reduction, PrCR and BCR were affected only by feed and exhibited higher values on reference feed, followed by BSG and SCG+BSG enriched with BY. Density did not have a significant effect on various larval nutrients, except for fat, which was higher on larvae fed enriched feeds with BY and in the 300 larval density. The interaction between feed and density strongly affected the nitrogen and protein levels, larval yield and ash. Generally, diets which contained SCG exhibited high larval crude protein levels. Our results illustrate that low value beverage by-products can be successfully utilized as constituents of a successful BSF diet.

A simple and rapid protocol for measuring the chitin content of Hermetia illucens (L.) (Diptera: Stratiomyidae) larvae

2020 ◽  
Vol 6 (3) ◽  
pp. 285-290 ◽  
Author(s):  
M.J. Woods ◽  
N.J. Goosen ◽  
L.C. Hoffman ◽  
E. Pieterse
Keyword(s):  
Nitrogen Content ◽  
Standard Error ◽  
Inorganic Compounds ◽  
Insect Larvae ◽  
Hermetia Illucens ◽  
Chitin Content ◽  
Chloroform Methanol ◽  
Hermetia Illucens Larvae ◽  
Inorganic Components

The study reports on a simple gravimetrical analysis to determine the chitin content of insect larvae. Hermetia illucens larvae, 16 days of age, was used as sample material. The method of analysis comprised of a defatting treatment by means of rapid solvent extraction (2:1 chloroform : methanol), followed by a treatment with 1 M HCL (demineralisation) and 1 M NaOH (deproteinisation). The nitrogen content of the obtained chitin was determined and compared to that of the nitrogen content of pure chitin (6.89). The chitin content of H. illucens larvae was determined to be 5.68±0.15% with a nitrogen content of 6.43±0.038 (mean ± standard error). The average nitrogen content of the isolated chitin was lower than the theoretical value calculated for pure chitin. This indicated that there was still a small amount of inorganic compounds present in the chitin of the insect larvae after applying the developed analytical procedures. This was confirmed by the ash value of the isolated chitin (1.50±0.06%) (mean ± standard error). The analysis is simple and accurate, which gives repeatable results, for the determination of the chitin content of H. illucens larvae. Further studies regarding the demineralisation treatment could improve the accuracy of the method due to the removal of all inorganic components. Future studies could also investigate the accuracy of the protocol on other insect species.

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