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Inhibition of pathogenic microorganisms in solid organic waste via black soldier fly larvae-mediated management

文献类型： 外文期刊

作者： Shi, Chaohong 1 ; Xie, Penghao 2 ; Ding, Zhexu 2 ; Niu, Guoqing 2 ; Wen, Tao 2 ; Gu, Wenjie 1 ; Lu, Yusheng 1 ; Wang, Fengying 5 ; Li, Wanling 1 ; Zeng, Jianguo 2 ; Shen, Qirong 2 ; Yuan, Jun 2 ;

作者机构： 1.Minist Agr & Rural Affairs, Guangdong Acad Agr Sci, Guangdong Key Lab Nutrient Cycling & Farmland Cons, Key Lab Plant Nutr & Fertilizer South Reg,Inst Agr, Guangzhou 510640, Peoples R China

2.Nanjing Agr Univ, Jiangsu Collaborat Innovat Ctr Solid Organ Wastes, Educ Minist Engn Ctr Resource saving fertilizers, Key lab organ based fertilizers China, Nanjing 210095, Peoples R China

3.Nanjing Agr Univ, Jiangsu Collaborat Innovat Ctr Solid Organ Wastes, Educ Minist Engn Ctr Resource Saving Fertilizers, Jiangsu Prov key lab solid Organ Waste utilizat, Nanjing 210095, Peoples R China

4.Guangdong Lab Lingnan Modern Agr, Maoming Branch, Maoming 525000, Peoples R China

5.Guangzhou Outreach Environm Technol Co Ltd, Guangzhou 510640, Peoples R China

关键词： Solid organic waste management; BSFL; Microbial community; Pathogenic microbes

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：9.8； 五年影响因子：9.6 ）

ISSN： 0048-9697

年卷期： 2024 年 913 卷

页码：

收录情况： SCI

摘要： Inadequately managed solid organic waste generation poses a threat to the environment and human health globally. Biotransformation with the black soldier fly larvae (BSFL) is emerging as talent technology for solid waste management. However, there is a lack of understanding of whether BSFL can effectively suppress potential pathogenic microorganisms during management and the underlying mechanisms. In this study, we investigated the temporal variations of microorganisms in two common types of solid waste, i.e., kitchen waste (KW) and pig manure (PM). Natural composting and composting with BSFL under three different pH levels (pH 5, 7, and 9) were established to explore their impact on microbial communities in compost and the gut of BSFL. The results showed that the compost of kitchen waste and pig manure led to an increase in relative abundance of various potentially pathogenic bacteria. Temporal gradient analyses revealed that the most substantial reduction in the relative abundance and diversity of potentially pathogenic microorganisms occurred when the initial pH of both two wastes were adjusted to 7 upon the introduction of BSFL. Through network and pls-pm analysis, it was discovered that the gut microbiota of BSFL occupied an ecological niche in the compost, inhibiting the proliferation of potentially pathogenic microorganisms. This study has revealed the potential of BSFL in reducing public health risks during the solid waste management process, providing robust support for sustainable waste management.

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