Isolated and identified pathogenic bacteria from black soldier fly larvae with “soft rot” reared in mass production facilities and its incidence characteristics

She, Wangjun; Xiao, Qin; Meng, Ying Shirley; Zhao, Peng; Wu, Chuanliang; Huang, Feng; Cai, Minmin; Zhang, Jibin; Zhou, Yu; Rehman, Kashif Ur; Peng, Donghai; Zheng, Longyu

doi:10.1016/j.wasman.2023.03.023

Cited by 5 publications

(1 citation statement)

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“…Until 2023, no major disease outbreaks had been reported in any BSFL rearing center, while several have occurred in farms for other mass-produced insects [ 15 ]. To date, only one case of infectious disease among farmed BSF has been reported: “soft rot” involving the Paenibacillus thiaminolyticus [ 16 ]. Particularly strong immunity is inherent in the species [ 17 ]: detritivorous and saprophagous insects like BSFL need to have evolved systems to decontaminate the decaying substrates on which they feed, such as by producing antimicrobial peptides [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Mitigation Strategies against Food Safety Contaminant Transmission from Black Soldier Fly Larva Bioconversion

Shelomi

2024

Animals

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The black soldier fly larva, Hermetia illucens, can efficiently convert organic waste into biomatter for use in animal feed. This circularity comes with a risk of contaminating downstream consumers of the larval products with microbes, heavy metals, and other hazards potentially present in the initial substrate. This review examines research on mitigation techniques to manage these contaminants, from pretreatment of the substrate to post-treatment of the larvae. While much research has been done on such techniques, little of it focused on their effects on food safety contaminants. Cheap and low-technology heat treatment can reduce substrate and larval microbial load. Emptying the larval gut through starvation is understudied but promising. Black soldier fly larvae accumulate certain heavy metals like cadmium, and their ability to process certain hazards is unknown, which is why some government authorities are erring on the side of caution regarding how larval bioconversion can be used within feed production. Different substrates have different risks and some mitigation strategies may affect larval rearing performance and the final products negatively, so different producers will need to choose the right strategy for their system to balance cost-effectiveness with sustainability and safety.

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