Microbiological analysis, antimicrobial activity, heavy-metals content and physico-chemical properties of Fijian mud pool samples

Pipite, Atanas; Siro, Galana; Subramani, Ramesh; Srinivasan, Sathiyaraj

doi:10.1016/j.scitotenv.2022.158725

Cited by 4 publications

(3 citation statements)

References 42 publications

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“…Nocardia spp. was also isolated from mud pool samples in Fiji, a region where the analysis of microbial diversity remains largely unexplored (Pipite et al, 2023 ). The genus Thermus spp.…”

Section: Discussionmentioning

confidence: 99%

Profiling microbial communities in an extremely acidic environment influenced by a cold natural carbon dioxide spring: A study of the Mefite in Ansanto Valley, Southern Italy

De Castro,

Avino,

Carraturo

et al. 2024

Environ Microbiol Rep

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The Ansanto Valley's Mefite, one of the Earth's largest non‐volcanic CO2 gas emissions, is distinguished by its cold natural carbon dioxide springs. These emissions originate from the intricate tectonics and geodynamics of the southern Apennines in Italy. Known for over two millennia for its lethal concentration of CO2 and other harmful gases, the Mefite has a reputation for being toxic and dangerous. Despite its historical significance and unique geological features, there is a lack of information on the microbial diversity associated with the Mefite's gas emissions. This study presents an integrated exploration of the microbial diversity in the mud soil, using high‐throughput sequencing of 16S rRNA (Prokaryotes) and ITS2 (Fungi), alongside a geochemical site characterisation. Our findings reveal that the Mefite's unique environment imposes a significant bottleneck on microbial diversity, favouring a select few microbial groups such as Actinobacteria and Firmicutes for Prokaryotes, and Basidiomycota for Fungi.

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“…Nocardia spp. was also isolated from mud pool samples in Fiji, a region where the analysis of microbial diversity remains largely unexplored (Pipite et al, 2023 ). The genus Thermus spp.…”

Section: Discussionmentioning

confidence: 99%

Profiling microbial communities in an extremely acidic environment influenced by a cold natural carbon dioxide spring: A study of the Mefite in Ansanto Valley, Southern Italy

De Castro,

Avino,

Carraturo

et al. 2024

Environ Microbiol Rep

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“…These antimicrobial properties help prevent or reduce the risk of infections when the mud is applied to the skin. Some peloids may contain beneficial bacteria or probiotics that can positively influence the skin microbiota [ 8 , 9 ]. These probiotic bacteria can help restore the natural balance of microorganisms on the skin’s surface, promoting skin health.…”

Section: Introductionmentioning

confidence: 99%

“…These probiotic bacteria can help restore the natural balance of microorganisms on the skin’s surface, promoting skin health. Based on previous research, it was identified that Actinobacteria or Cyanobacteria present in mud could produce substances with antimicrobial activity, and Aquaphilus and Pelobacter have been identified for their anti-inflammatory properties [ 8 , 9 ]. Some microorganisms present in peloids can break down minerals, making them more accessible to the skin.…”

Section: Introductionmentioning

confidence: 99%

Microbial Composition Dynamics in Peloids Used for Spa Procedures in Lithuania: Pilot Study

Kataržytė,

Rapolienė,

Kalvaitienė

et al. 2024

IJERPH

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Despite peloids’ acknowledged therapeutic and cosmetic potential, there remains a limited understanding of their microbial diversity and dynamics, especially concerning beneficial and non-beneficial microorganisms under different heating conditions. Our study employs both cultivation and metagenomic methods to assess the microbiota of peloids, focusing on lake sapropel and peat under heating conditions recommended for external application and safety assurance. By applying microbial indicators specified in national regulatory documents, we found that all peloids reached thresholds for sulphite-reducing clostridia and colony-forming units. Each peloid exhibited a distinctive bacterial composition based on metagenomic analysis, and temperature-induced changes were observed in microbial diversity. We identified beneficial bacteria potentially contributing to the therapeutic properties of peloids. However, the same peloids indicated the presence of bacteria of human faecal origin, with a notably higher abundance of Escherichia coli, pointing to a potential source of contamination. Unfortunately, it remains unclear at which stage this contamination entered the peloids. The findings underscore the importance of monitoring and controlling microbial aspects in peloid applications, emphasising the need for measures to prevent and address contamination during their preparation and application processes.

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Investigation of autoclave curing impact on the mechanical properties, heavy metal stabilization and anti-microbial activity of the green geopolymeric composite based on received/thermally-treated glass polishing sludge

Ramadan¹,

Kohail²,

Alharbi³

et al. 2023

Journal of Materials Research and Technology

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Microbiological analysis, antimicrobial activity, heavy-metals content and physico-chemical properties of Fijian mud pool samples

Cited by 4 publications

References 42 publications

Profiling microbial communities in an extremely acidic environment influenced by a cold natural carbon dioxide spring: A study of the Mefite in Ansanto Valley, Southern Italy

Profiling microbial communities in an extremely acidic environment influenced by a cold natural carbon dioxide spring: A study of the Mefite in Ansanto Valley, Southern Italy

Microbial Composition Dynamics in Peloids Used for Spa Procedures in Lithuania: Pilot Study

Investigation of autoclave curing impact on the mechanical properties, heavy metal stabilization and anti-microbial activity of the green geopolymeric composite based on received/thermally-treated glass polishing sludge

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