Microbial Functionality towards Environmental Pollution

A special issue of Microbiology Research (ISSN 2036-7481).

Deadline for manuscript submissions: closed (15 June 2023) | Viewed by 3656

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Research Institute for Advanced Industrial Technology, College of Science and Technology, Korea University, Sejong 30019, Republic of Korea
Interests: nanomaterial; environmental remediation; biomass reutilization; bioelectrochemical system; wastewater treatment
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Research Institute for Advanced Industrial Technology, College of Science and Technology, Korea University, Sejong 30019, Republic of Korea
Interests: bioremediation; environmental microbiology; phytoremediation; biological wastewater treatment; microalgae; bioelectrochemical fuel cells
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Pollutants that enter the environment are transformed into an insoluble form largely by microorganisms. This is a consequence of microbes’ very diverse range of metabolic processes, which allows them to break down a similarly diverse range of chemical substances. However, many cellular poison pollutants also impede microbial growth and activity. Elemental cycling in the environment is carried out through microbial activity; therefore, any reduction in microbial growth will inevitably detrimentally impact microbial activity. Pollutants may affect processes such as nitrification, nitrogen fixation and carbon mineralization. However, microbes often employ contaminants as food sources, which may result in significant, frequently unmanaged and uncontrolled expansion of microbial biomass. As a result, when determining the likely disturbance impact of a pollutant on the environment, we can distinguish between positive disturbance impact, which occurs when a pollutant stimulates a process, and negative disturbance impact, which occurs when a pollutant inhibits an important microbial process. The classic example is the rise in bacterial (coliforms) after sewage contamination of water passageways. An increase in microbial populations may indicate pollution. This Special Issue will focus on microbiological activities and catalytic activities aimed at removing organic/inorganic substances from wastewater. Microbes play an important role in bioelectrochemical systems. We welcome any novel concepts or theoretical writings on microbial activity in bioelectrochemical systems.

Dr. Asim Ali Yaqoob
Dr. Fida Hussain
Guest Editors

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Keywords

  • microbial growth
  • microorganism applications for environmental pollution
  • bioelectrochemical system
  • nitrogen fixation
  • carbon mineralization

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Published Papers (1 paper)

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Research

15 pages, 933 KiB  
Article
Effects of Prolonged Storage Condition on the Physicochemical and Microbiological Quality of Sachet Water and Its Health Implications: A Case Study of Selected Water Brands Sold within Samaru Community, Northwest Nigeria
by Taiwo Adekanmi Adesakin, Abayomi Tolulope Oyewale, Ndagi Abubakar Mohammed, Umar Bayero, Adebukola Adenike Adedeji, Idowu Adedeji Aduwo, Adetolani Christianah Bolade and Maryam Adam
Microbiol. Res. 2022, 13(4), 706-720; https://doi.org/10.3390/microbiolres13040051 - 29 Sep 2022
Cited by 1 | Viewed by 2670
Abstract
The aim of this research is to investigate the effect of long-term storage conditions on the physicochemical and microbial quality of selected sachet water brands sold within the Samaru community and its health implication for consumers. Three brands of sachet water were subjected [...] Read more.
The aim of this research is to investigate the effect of long-term storage conditions on the physicochemical and microbial quality of selected sachet water brands sold within the Samaru community and its health implication for consumers. Three brands of sachet water were subjected to different storage conditions and were analyzed for microbial and physicochemical parameters at intervals of 3 weeks for a period of 3 months, based on procedures and standard methods of APHA (2005). The highest pH means concentration was recorded in sachet water samples used for control (7.14 ± 0.24) while EC, TDS, BOD, and calcium (336.67 ± 73.69 µS/cm, 168.33 ± 34.89 mg/L, 1.87 ± 0.39 mg/L and 2.97 ± 0.19 mg/L) were recorded in the sachet water samples stored on the floor. A total number of 15 fungal species and 4 bacteria species were identified from the three selected brands of sachet water examined. Aspergillus niger and Penicillium spp. have the highest species occurrence of 25% among the fungus identified while Proteus Sp. recorded the highest species occurrence (50%) among the bacteria isolated. Sachet water samples stored on the floor have the highest abundances of microbial species of five and six. All the physicochemical parameters were within the stipulated limits set by the World Health Organization and the Nigeria Standard for Drinking Water Quality, but fail microbial tests due to the presence of pathogens such as Aspergillus, Candida, Vibro, Yersinia, etc., that can cause a wide range of life-threatening system infections in a patient with mild immune-deficiency. Being under prolonged storage and the type of storage conditions can encourage the regrowth of microbial in packaged water under favorable environmental conditions, to levels that may be harmful to humans. Full article
(This article belongs to the Special Issue Microbial Functionality towards Environmental Pollution)
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