Extensive multivariate dataset characterizing bacterial community diversity and contamination level in a large number of conventional broilers carcasses after air chilling and refrigerated storage.

The article provides extensive data on the diversity of bacterial communities collected on 480 conventional broiler carcasses from a French slaughterhouse between October 2022 and January 2023. Half of the carcasses were collected from the first slaughter batches and the other half from the later batches to highlight possible microbial cross-contamination between carcasses along the slaughter chain. and the Total Viable Count were quantified on agar plates before and after 7 days of refrigerated storage to estimate the contamination level of broiler carcasses.

Evaluation of the Microbial Quality of Larvae for Animal Feed and Human Consumption: Study of Different Type of Rearing Substrates.

In the context of climate change and depletion of natural resources, meeting the growing demand for animal feed and human food through sufficient, nutritious, safe, and affordable sources of protein is becoming a priority. The use of , the black soldier fly (BSF), has emerged as a strategy to enhance the circularity of the agri-food chain, but its microbiological safety remains a concern. The aim of the present study was to systematically review available data on the microbiological quality of BSF and to investigate the impact of using four different rearing substrates including classic options allowed by the EU regulation (cereals, fruits, vegetables) and options not allowed by EU regulations regarding vegetable agri-food (co-products, food at shelf life, and meat).

Spatio-temporal variations in chemical pollutants found among urban deposits match changes in thiopurine S-methyltransferase-harboring bacteria tracked by the tpm metabarcoding approach.

The bTPMT (bacterial thiopurine S-methyltransferase), encoded by the tpm gene, can detoxify metalloid-containing oxyanions and xenobiotics. The hypothesis of significant relationships between tpm distribution patterns and chemical pollutants found in urban deposits was investigated. The tpm gene was found conserved among eight bacterial phyla with no sign of horizontal gene transfers but a predominance among gammaproteobacteria.