A Chemically Safe Way to Produce Insect Biomass for Possible Application in Feed and Food Production

International Journal of Environmental Research and Public Health

Sara Ruschioni¹  Paola Riolo¹  Cristina Truzzi²  Ike Olivotto²  Leonardo Giovannini²  Federico Girolametti²  Silvia Illuminati²  Anna Annibaldi² 

[1] Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Università Politecnica delle Marche, 60131 Ancona, Italy;Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy;

关键词: hermetia illucens prepupae;    black soldier fly;    coffee silverskin;    microalgae;    potentially toxic elements;    bioaccumulation;    chemical hazard;   

DOI  :  10.3390/ijerph17062121

来源: DOAJ

【 摘 要 】

Black soldier fly (Hermetia illucens, HI, Diptera, Stratiomydae) has great potential as a food and feed ingredient in the European Union (EU). The production of insects as livestock feed or as food ingredients requires strict monitoring of the content of potentially toxic elements (PTEs) in the growth substrate, to meet the security requirements. This study aims to investigate the presence of PTEs, like cadmium, lead, mercury, arsenic, and nickel, in HI prepupae and in their growth substrates based on coffee roasting by-product and microalgae Schizochytrium sp. and Isochrysis sp. Analyses were carried out via graphite furnace atomic absorption spectrophotometry for Cd, Pb, Ni, and As, and via Direct Mercury Analyzer for Hg. All element concentrations found in growth substrates were below the legal limit of undesirable substances in animal feed (2002/32/EC). Elements concentrations in HI prepupae were in the range (mg kg⁻¹ wet weight) of 0.072 to 0.084 for Cd, 0.018 to 0.026 for Pb, 0.010 to 0.032 for Hg, 0.036 to 0.047 for As, and 0.18 to 0.76 for Ni. Even if HI prepupae accumulated Cd, Pb, and Hg, our results indicated that the risk of exposure to PTEs from HI prepupae consumption is relatively low and in compliance with EU regulations.

【 授权许可】

Unknown