A potential bioaerosol source from kitchen chimneys in restaurants DOI Creative Commons
Xueyun Geng, Changliang Nie, Dan Li

et al.

Environment International, Journal Year: 2024, Volume and Issue: 193, P. 109115 - 109115

Published: Nov. 1, 2024

Bioaerosols are ubiquitous and have a substantial impact on the atmosphere human health. Despite identification of numerous bioaerosol emission sources, contribution anthropogenic sources remains inadequately understood. In kitchens, oil stains accumulated at vent may discharge microorganisms into environment with airflow, potentially discharging pollution. This putative source bioaerosols has been long ignored. To investigated whether kitchen chimneys can be potential for bioaerosols, air samples, from in/out chimneys, surface sand samples were collected near several commercial restaurants. PCoA showed that sampling sites significantly impacted microbiomes, whereas SourceTracker analysis led to finding waste grease contributed composition. Both findings agree chimney as microbes in surrounding environment. Furthermore, despite low biodiversity, high proportion stress-tolerant pathogenic bacteria fungi found residual culinary grease, which escape causing risks beings. These results proposal airborne microbiota originate cooking grease. Immediate actions should taken account enhance disinfection sterilization aimed fume vents.

Language: Английский

Evaluation of Year-Round Bioaerosol Emissions and Quantitative Health Risk Assessment at a Municipal Solid Waste Disposal Facility DOI

Pinar Sarioglu,

Orçun TOKSÖZ, Gamze Kurtuluş

et al.

Atmospheric Pollution Research, Journal Year: 2025, Volume and Issue: unknown, P. 102412 - 102412

Published: Jan. 1, 2025

Language: Английский

Citations

0
Ventilation and Air Conditioning Systems are a Source of Antibiotic-Resistant Bacteria - A Review DOI
Jakub Gorlach, Dawid Gazda, Agnieszka Trusz

et al.

Building and Environment, Journal Year: 2025, Volume and Issue: unknown, P. 112583 - 112583

Published: Jan. 1, 2025

Language: Английский

Citations

0
Anticancer, antioxidant and antibacterial potential of L-Glutaminase (Streptomyces roseolus strain ZKB1) capped silver and zinc oxide nanoparticles and its molecular characterization DOI Creative Commons
Zabin K. Bagewadi,

Gouri Illanad,

T. M. Yunus Khan

et al.

Bioresources and Bioprocessing, Journal Year: 2025, Volume and Issue: 12(1)

Published: March 23, 2025

Abstract The current investigation reports anti-cancer, antioxidant and antibacterial potential of L-Glutaminase ( Streptomyces roseolus strain ZKB1) capped nanoparticles. highest production 9.57 U/mL was achieved on the 4th day fermentation when L-Glutamine used as sole carbon nitrogen source. Enhanced recycling stability observed after 6 cycles using immobilized in 3% agar agarose matrices. Free L- Glutaminase showed K m 13.89 ± 0.8 7.13 0.3 mM V max 18.40 1.5 24.21 1.7 U/mg respectively. silver (AgNP) zinc oxide (ZnONP) nanoparticles were synthesized structurally characterized UV visible spectroscopy, FTIR, SEM–EDS, XRD AFM. AgNP ZnONP exhibited good thermal with five three stages weight loss pattern respectively based TGA. inhibitory activity against B. subtilis (45 $$\pm$$ ± 0.5 mm) E. coli (33 whereas, demonstrated inhibition (30 cereus (25 mm). Increased concentration increased compared to wild lowest MIC 0.09 µg/mL . significant properties through in-vitro ABTS DPPH radical scavenging assays a dosage-dependent manner. ZnONP, pronounced cell cytotoxicity MCF-7 cancerous line 57.17 µg/mL, 8.13 28.31 IC 50 values respectively, suggesting promising anticancer agents enzyme-based therapy. results reveal biological activities applications healthcare sector. Graphical

Language: Английский

Citations

0
Bioaerosol Sampling Devices and Pretreatment for Bacterial Characterization: Theoretical Differences and a Field Experience in a Wastewater Treatment Plant DOI Creative Commons
Anastasia Serena Gaetano, Sabrina Semeraro, Samuele Greco

et al.

Microorganisms, Journal Year: 2024, Volume and Issue: 12(5), P. 965 - 965

Published: May 10, 2024

Studies on bioaerosol bacterial biodiversity have relevance in both ecological and health contexts, molecular methods, such as 16S rRNA gene-based barcoded sequencing, provide efficient tools for the analysis of airborne communities. Standardized methods sampling DNA are lacking, thus hampering comparison results from studies implementing different devices procedures. Three samplers that use gelatin filtration, swirling aerosol collection, condensation growth tubes collecting at an aeration tank a wastewater treatment plant Trieste (Italy) were used to determine biodiversity. Wastewater samples collected directly untreated sewage obtain true representation microbiological community present plant. Different collection media indication grades biodiversity, with DNA/RNA shield

Language: Английский

Citations

1
A potential bioaerosol source from kitchen chimneys in restaurants DOI Creative Commons
Xueyun Geng, Changliang Nie, Dan Li

et al.

Environment International, Journal Year: 2024, Volume and Issue: 193, P. 109115 - 109115

Published: Nov. 1, 2024

Bioaerosols are ubiquitous and have a substantial impact on the atmosphere human health. Despite identification of numerous bioaerosol emission sources, contribution anthropogenic sources remains inadequately understood. In kitchens, oil stains accumulated at vent may discharge microorganisms into environment with airflow, potentially discharging pollution. This putative source bioaerosols has been long ignored. To investigated whether kitchen chimneys can be potential for bioaerosols, air samples, from in/out chimneys, surface sand samples were collected near several commercial restaurants. PCoA showed that sampling sites significantly impacted microbiomes, whereas SourceTracker analysis led to finding waste grease contributed composition. Both findings agree chimney as microbes in surrounding environment. Furthermore, despite low biodiversity, high proportion stress-tolerant pathogenic bacteria fungi found residual culinary grease, which escape causing risks beings. These results proposal airborne microbiota originate cooking grease. Immediate actions should taken account enhance disinfection sterilization aimed fume vents.

Language: Английский

Citations

1