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Uncovering mercury accumulation and the potential for bacterial bioremediation in response to contamination in the Singalila National Park.
Sci Rep
January 2025
Molecular Biology and Tissue Culture Laboratory, Department of Tea Science, University of North Bengal, Siliguri, West Bengal, India.
Several recent investigations into montane regions have reported on excess mercury accumulation in high-altitude forest ecosystems. This study explored the Singalila National Park, located on the Singalila ridge of the Eastern Himalayas, revealing substantial mercury contamination. Particular focus was on Sandakphu (3636 m), the highest peak in West Bengal, India.
View Article and Find Full Text PDFCleaning and sterilization are critical Prerequisite Programs in sanitation management based on HACCP. Most food factories clean and sanitize equipment daily after production using detergents containing benzalkonium chloride (BAC). However, in factories that produce oil and fat-rich foods, it has been discovered that microbes can persist on production equipment.
View Article and Find Full Text PDFDried and Tested: Inoculation Method Impacts Low-Moisture Food Persistent Bacterial Populations.
J Food Prot
January 2025
Department of Food Science, University of Arkansas System Division of Agriculture, Fayetteville, AR, USA. Electronic address:
Pathogen contamination and harborage in low-moisture food (LMF) processing environments have resulted in outbreaks and recalls, but researchers are limited in their abilities to investigate solutions. Methods used in most laboratory studies do not accurately reflect the route of contamination or harborage of pathogens in LMF environments, which complicates studying of sanitation methods. Inoculation methods were compared to establish low-moisture food persistent bacterial populations (LMF PBPs) that realistically reflect populations found in LMF environments.
View Article and Find Full Text PDFWhole genome sequencing revealed high occurrence of antimicrobial resistance genes in bacteria isolated from poultry manure.
Int J Antimicrob Agents
January 2025
Department of Botany, Institute of Science, Banaras Hindu, University, Varanasi, Uttar Pradesh, 221005, India. Electronic address:
Global demand for food has driven expansion and intensification of livestock production, particularly in developing nations where antibiotic use is often routine. Waste from poultry production, including manure, is commonly utilized as fertilizers in agroecosystems, risking environmental contamination with potentially zoonotic bacteria and antimicrobial resistance genes (ARGs). Here, 33 bacterial isolates were recovered from broiler (n=17) and layer (n=16) chicken manure by aerobic culture using Luria Bertani agar.
View Article and Find Full Text PDFLong-term response mechanism of bacterial communities to chemical oxidation remediation in petroleum hydrocarbon contaminated groundwater.
J Hazard Mater
January 2025
College of Water Sciences, Beijing Normal University, Beijing 100875, PR China; Engineering Research Center of Groundwater Pollution Control and Remediation, Ministry of Education, Beijing Normal University, Beijing 100875, PR China. Electronic address:
The limited understanding of microbial response mechanism remains as a bottleneck to evaluate the long-term remediation effectiveness of in situ chemical oxidation in contaminated groundwater. In this study, we investigated long-term response of bacterial communities throughout five remediation stages of pre-oxidation, early-oxidation, late-oxidation, early-recovery and late-recovery. By analyzing bacterial biomass, taxa, diversity and metabolic functions, this work identified the consistently suppressed glyceraldehyde-3-phosphate dehydrogenase pathway and the enrichment of naphthalene degradation pathways for secondary products, suggesting persistent oxidation stress and enhanced microbial utilization of lower-molecular weight carbon sources at the oxidation and early-recovery stages.
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