关键词: Hermetia illucens circularity food safety heavy metals microbial hazards pathogens toxins

来  源:   DOI:10.3390/ani14111590   PDF(Pubmed)

Abstract:
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.
摘要:
黑色士兵飞幼虫,Hermetiaillucens,可以有效地将有机废物转化为生物物质用于动物饲料。这种循环性伴随着微生物污染幼虫产品下游消费者的风险,重金属,以及初始底物中可能存在的其他危险。这篇综述探讨了管理这些污染物的缓解技术的研究,从底物的预处理到幼虫的后处理。虽然对这种技术已经做了很多研究,很少关注它们对食品安全污染物的影响。廉价和低技术的热处理可以减少基质和幼虫的微生物负荷。通过饥饿清空幼虫肠道的研究不足,但很有希望。黑色士兵苍蝇幼虫积累某些重金属,如镉,他们处理某些危险的能力是未知的,这就是为什么一些政府当局对如何在饲料生产中使用幼虫生物转化持谨慎态度的原因。不同的底物具有不同的风险,一些缓解策略可能会对幼虫的饲养性能和最终产品产生负面影响,因此,不同的生产者需要为他们的系统选择正确的策略,以平衡成本效益与可持续性和安全性。
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