| Nutritional and Chemical Evaluation of Black Soldier Fly Larvae (Hermetia illucens) Reared on Vegetable and Fruit Waste as a Potential Protein Source in Aquafeeds |
| Paper ID : 1054-ICIAQUA |
| Authors |
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GHASEM ASHOURI *1, Roberta Imperatore2, Seyed Hossein Hoseinifar3, Seyed Amir Hossein Jalali4, Hossein Alaie Kordghashlaghi5, Marina Paolucci1 1Department of Sciences and Technologies, University of Sannio, Via De Sanctis, snc, 82100 Benevento, Italy 2Department of Scinces and Technologies University of Sannio Benevento, Italy 3Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran 4Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan, 84156–83111, Iran 5Department of Genomics Agricultural Biotechnology Research Institute of Iran-North Branch (ABRII), Rasht, Iran |
| Abstract |
| Purpose: This study investigates a novel ingredient derived from black soldier fly (Hermetia illucens) larvae (BSFL) as a potential alternative protein source in aquafeeds, based on the circle economy concept. Method: Black soldier fly were reared using processed vegetable and fruit waste as a substrate. Proximate composition of the substrate was analyzed according to the standard method. Pooled samples of BSFL were dried and proximate, chitin content, amino acid, and fatty acid analyses were performed. Results: Contents of crude protein, ether extract, and ash of the substrate were 10.6±1.9, 3.2±1.0, and 11.1±0.4 g 100g−1 dry matter, respectively. Isolated chitin in BSFL was estimated 6.3±0.3 g 100g−1 dry matter. Black soldier fly larvae specimens were rich in protein (52.2±1.0 g 100g−1 dry matter), with an acceptable amount of essential amino acids such as leucine, valine, and lysine, with levels between about 2 and 3 g 100g−1 dry matter. While, glutamine, a non-essential amino acid, was less than 0.05 g 100g−1 dry matter. Black soldier fly larvae showed a crude fat content of 26.5±2.7 g 100g−1 dry matter. However, its fatty acid profile is characterized by low levels of polyunsaturated fatty acids, especially EPA (eicosapentaenoic acid 20:5n-3) and DHA (docosahexaenoic acid 22:6n-3), and high levels of lauric acid (C12:0). Conclusions: Black soldier fly larvae promising nutritional characteristics, being rich in protein. Therefore, it can be used as a potential substitute protein source which is applicable to replace fishmeal in aquafeeds. However, its chitin content and deficient amounts of EPA and DHA appear to prevent its inclusion in aquafeeds as substitute fishmeal up to 100%. |
| Keywords |
| amino acid, aquafeed, black soldier fly, protein, fatty acid |
| Status: Abstract Accepted (Poster Presentation) |