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Journal articles on the topic 'Total heterotrophic bacteria count'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

O., A. Mmuoegbulam, U. Bassey I., A. Unimke A., and E. Igwe E. "Bacteriological and Physicochemical Quality of Malabor Hostel Tap Water - University of Calabar, Nigeria." Annual Research & Review in Biology 13, no. 5 (2017): 1–12. https://doi.org/10.9734/ARRB/2017/33920.

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Tap water samples collected from different halls in Malabor hostel were analyzed for total heterotrophic bacteria count, total and faecal coliform counts using direct plating and membrane filtration methods. Total heterotrophic bacterial counts ranged from 3 to 80 cfu/ml, corresponding to the total heterotrophic bacterial counts obtained from Hall 4 and Hall 9 samples respectively. Total coliform counts ranged from 28 cfu/ml to 126 cfu/ml, corresponding to the total coliform counts obtained from Hall4 and Hall9, respectively. No faecal coliform was detected at 35 – 37°C in all samples even aft

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Hatha, A. A. M., K. S. Christi, R. Singh, and S. Kumar. "Bacteriology of the fresh water bivalve clam Batissa violacea (Kai) sold in the Suva market." South Pacific Journal of Natural and Applied Sciences 23, no. 1 (2005): 48. http://dx.doi.org/10.1071/sp05009.

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Forty samples of freshwater clam (Batissa violacea), popularly known as Kai, collected from the Suva market were analysed for total aerobic plate count and total coliforms. The heterotrophic bacteria isolated by plate count were also characterised up to genera. The results indicated higher than acceptable level of plate count and coliform bacteria. While total plate count of aerobic heterotrophic bacteria ranged from 5.5 x 105 colony forming units (cfu) per gram to more than 107 cfu/ gram, total coliform load varied between 1.1 x 104 to 1.1 x 105 per 100 gm of Kai flesh. The characterisation o

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3

Akpoka, Obhioze Augustine. "Isolation and Characterization of Crude Oil Degrading Bacteria in Association with Microalgae in Saver Pit from Egbaoma Flow Station, Niger Delta, Nigeria." Archives of Ecotoxicology 2, no. 2 (2020): 12–16. http://dx.doi.org/10.36547/ae.2020.2.2.12-16.

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The capability of indigenous bacteria and microalgae in crude oil effluents to grow in and utilize crude oil as their sole source of carbon and energy provides an environmentally friendly and economical process for dealing with crude oil pollution and its inherent hazards. In view of the toxicity of crude oil spillages to indwellers of the affected ecosystems and the entire affected environment, the isolation of pure bacterial and microalgae cultures from crude effluents is a step in the right direction, particularly for bio-augmentation or bioremediation purposes. The total heterotrophic bact

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4

Ntongha, Oyibo, and Obire Omokaro. "Impact of Oilfield Wastewaters from Soku Swamp Rig on the Population and Diversity of Microbes in Soku River in Niger Delta." Journal of Advances in Microbiology 23, no. 2 (2023): 1–8. http://dx.doi.org/10.9734/jamb/2023/v23i2704.

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Oilfield wastewater contains poisonous and dangerous compounds that harm microorganisms and the quality of the water. An ongoing environmental concern in the Niger Delta is the rapid deterioration of water quality brought on by oilfield wastewater discharged from Nigerian oil industry operations. For a period of two months, biweekly studies were conducted to evaluate the microbiological effects of oilfield effluent from the Soku swamp oil rig on the Soku River in Rivers State in the Niger Delta. A total heterotrophic bacterial count, a hydrocarbon-utilizing bacterial count, a total fungal coun

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Timilshina, M., I. Dahal, and B. Thapa. "Microbial assessment of bottled drinking water of Kathmandu valley." International Journal of Infection and Microbiology 1, no. 2 (2013): 84–86. http://dx.doi.org/10.3126/ijim.v1i2.7399.

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INTRODUCTION: Due to increased demand and consumption of bottled water in Kathmandu valley, there has been a growing concern about the microbiological quality of this product. The objective of this study was to assess the microbial contamination of heterotrophs and total coliform. MATERIALS AND METHODS: This cross sectional study was done in randomly selected 30 different commercial brand of bottled water available in commercial market of Kathmandu valley, Nepal. Total coliform and heterotrophic bacteria were enumerated by the membrane filtration and spread plate technique, respectively. RESUL

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Chikere, Chioma Blaise, Chinyere Augusta Ajuzieogu, and Michael Chukwugoziem Miller. "Characterization of Indigenous Bacterial Communities in Crude-Oil Impacted Sites at Obagi Town, Onelga, Rivers State, Nigeria." Fine Focus 2, no. 1 (2016): 7–14. http://dx.doi.org/10.33043/ff.2.1.7-14.

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Hydrocarbon utilizers are expected to be indigenous in crude-oil polluted environments. The isolation and characterization of hydrocarbon utilizers is often a key strategy in bioremediation of hydrocarbon-polluted environments. In this study, crude-oil polluted soil samples from Obagi town, Onelga, Rivers state were enumerated and characterized for putative hydrocarbon utilizing bacterial populations. Biochemical characterization identified five bacterial species representative of five genera: Bacillus, Pseudomonas, Acinetobacter, Micrococcus and Staphylococcus. Amongst the genera of bacteria

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P. Palan, Shailaja, and Shilpa M. Gharat. "Abundance of Heterotrophic Bacterial Population in Coastal Waters of Palghar Taluka, Maharashtra, India." Ecology, Environment and Conservation 30, Suppl (2024): 128–31. http://dx.doi.org/10.53550/eec.2024.v30i01s.023.

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The population density of total heterotrophic bacteria in coastal water at 4 different sites along Palghar taluka namely; Kelwa coast, Navapur coast, Dandi creek and Satpati coast were studied. Total heterotrophic bacterial count was found to range from 0.34×102 – 423.1× 102 CFUml-1 in coastal waters. Average heterotrophic bacterial abundance was noted higher during monsoon at all 4 sites in the study with 47.2× 102 ± 34.79 CFU ml1at Satpati coast, 281.55× 102 ± 148.45 CFU ml-1 at Dandi creek, 265.26× 102 ± 149.74 CFU ml-1 at Navapur coast, and 1.12 × 102 ± 0.54 CFU ml-1 at Kelwa coast. Dandi

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Mmuoegbulam, Augusta Oluchi, Augustine Agorye Unimke, Iniobong Ebenge Andy, Ogemdi Chinwendu Anika, and Rachael Teniola Macaulay. "Effect of variations in heterotrophic plate count methods on bacterial estimation in some sachet water in Calabar Metropolis." World Journal of Advanced Research and Reviews 1, no. 2 (2019): 018–27. https://doi.org/10.5281/zenodo.4308311.

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Heterotrophic plate count (HPC) or standard plate count is a standardized method for determining the density of aerobic and facultative anaerobic heterotrophic microorganisms in water. In this study, water samples were analyzed to ascertain the effects of temperature, media, and incubation time in HPC methods of bacterial estimation. The samples were analyzed using the membrane filtration and direct plating methods. No faecal coliform was detected in all the samples and at all temperature. However, some coliforms and heterotrophic bacteria were present in the water samples. The organisms were

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9

A., A. Unimke, O. Mmuoegbulam A., U. Bassey I., and E. Obot S. "Assessment of the Microbial Diversity of Spent-Oil Contaminated Soil in Calabar, Nigeria." Journal of Advances in Microbiology 4, no. 4 (2017): 1–9. https://doi.org/10.9734/JAMB/2017/34847.

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This study was designed to assess the total heterotrophic and hydrocarbon oxidizing microbial diversity, determine the physicochemical parameters of oil contaminated soil and evaluate the potentials of microorganisms isolated to utilize spent oil. Three mechanic workshops within Calabar South axis of Cross River State Nigeria were selected and three soil samples were collected from each site. The total heterotrophic bacteria were enumerated on nutrient agar and the hydrocarbon utilizing bacteria on minimal salt medium using the vapor phase method after employing the ten-fold dilutions from 1:1

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Allamin, Ibrahim Alkali, Hussaini Shettima, Hafsat Muhammad Abdullahi, Usman Ali Bukar, Amina Umar Faruk, and Abdulhamid Musa Ruwa. "Distribution of Heterotrophic and Nitrogen fixing Rhizobacteria in Irrigation Sites of Lake Alau Borno State Northeastern Nigeria." Journal of Environmental Bioremediation and Toxicology 4, no. 2 (2021): 27–30. http://dx.doi.org/10.54987/jebat.v4i2.630.

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This study was conducted to know the population of rhizobacteria in both irrigation and non-irrigation sites of the dam. The dense population of these organism indirectly promote plant growth and development. Five sites (A, B, C, D and E) were used to collect soil samples randomly and transported to the laboratory for analysis. Total heterotrophic bacterial count was done using nutrient agar (NA) and nitrogen fixing bacteria was counted using Ashbey’s media (AM). The result shows that highest number of total heterotrophic bacteria in site C (46.0×106) cfu/g in irrigation site whereas higher co

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11

SUI SIEN LEONG, HADI HAMLI, ERRA FAZIRA ABDUL RAHIM, and SUHAILI MUSTAFA. "Prevalence and Diversity of Antibiotic Resistance Heterotrophic Bacteria Found Along the Bintulu Rivers, Sarawak." Borneo Journal of Resource Science and Technology 13, no. 2 (2023): 32–41. http://dx.doi.org/10.33736/bjrst.5450.2023.

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The study aims (1) to isolate and characterise the heterotrophic bacteria from different rivers in Bintulu, Sarawak, (2) to investigate the hygienic condition of the rivers through faecal coliforms and (3) to determine the antibiotic resistance among the heterotrophic bacteria isolates. A total of 100 heterotrophic bacteria strains were identified from rivers of Bintulu, Sarawak. The characterisation of bacteria was performed using (GTG)5 fingerprinting to investigate their genetic distribution diversity and 16S rRNA gene sequencing. Microbiological variables tested including total viable coun

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Ogba, Ofonime M., Oluwayemisi A. Olorode, Mary P. Okon, and Nse O. Umoh. "Bacteriological Quality Analysis of Water in Storage Tanks in A University Community, South Southern - Nigeria." Sokoto Journal of Medical Laboratory Science 6, no. 3 (2021): 16–23. http://dx.doi.org/10.4314/sokjmls.v6i3.3.

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The use of unsafe water supplies and microbial contaminated water may pose serious health challenge to users. The aim of the study was to determine the level of bacterial contamination of the various water sources and the suitability for human use and consumption in University of Calabar Community, Nigeria. A total of 30 water samples were obtained from the University storage tanks and analysed for the presence of bacteria. The level of feacal coliform count, total coliform count and heterotrophic bacterial count was analysed using membrane filtration method and standard culture method on a di

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13

Buchanan-Mappin, J. M., P. M. Wallis, and A. G. Buchanan. "Enumeration and identification of heterotrophic bacteria in groundwater and in a mountain stream." Canadian Journal of Microbiology 32, no. 2 (1986): 93–98. http://dx.doi.org/10.1139/m86-020.

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Populations of heterotrophic bacteria were enumerated from stream and groundwater samples taken from an undisturbed catchment basin in southwestern Alberta. Direct counts using epifluorescence microscopy were compared with total viable counts using standard plate count methods, the iodonitrotetrazolium formazan method (reduction of 2-(p-iodophenyl)-3-(p-nitro phenyl)-5-phenyl tetrazolium chloride to iodonitrotetrazolium formazan), the nalidixic acid method, and the slide culture method. The nalidixic acid method gave the highest results, with total viable counts as high as 34.6% of the total d

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Ugbenyen, Anthony, Young Godwin, Olulope Ajayi, and Desmond Onubun. "Physicochemical and bacteriological assessment of borehole water from Etsako west local government." World Journal of Environmental Research 12, no. 2 (2022): 108–18. http://dx.doi.org/10.18844/wjer.v12i2.8171.

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One of the environmental determinants of health is the quality of drinking water, and water of good quality is void of impurities and pathogenic microbes. Poor quality water has deleterious effects on man's health and wholeness. Conducting a periodic evaluation to ascertain the likely water pollution in the environment is imperative. The study evaluated the physical-chemical parameters (pH, temperature, total dissolved solids, electrical conductivity, total Hardness, Calcium Hardness, Magnesium Hardness, salinity, appearance, odour, Sulphate, Nitrate, Carbonate and Bicarbonate, Sodium, Calcium

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15

Nicholas Chinedu Ewelike, Christabel Amarachukwu Okoli, Macanthony Nnanyereugo Echendu, and Jennifer Uzoamaka Enekwa. "Bacteriological assessment of borehole water in some communities in Owerri West, Southeastern Nigeria." GSC Biological and Pharmaceutical Sciences 18, no. 3 (2022): 177–81. http://dx.doi.org/10.30574/gscbps.2022.18.3.0115.

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The proliferation of boreholes dug by individuals, public and private entities in a bid to overcome the problem of water shortage has caused various communities in Owerri West, southeastern Nigeria to depend on borehole water as readily available water for drinking and domestic purposes. Unfortunately, the water is not treated before it is used for drinking and there is no surveillance of bacteria in the water to ascertain its safety. In consideration of this fact, a study was conducted to assess the bacteriological quality of borehole water in some communities in the area. Borehole water samp

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16

Unegbu, Valentine N., Ndubuisi O. Nwachukwu, Emmanuel N. Ugbo, and Anthony C. Ekennia. "The effects of storage on the bacteriological quality of sachet water produced, sold and consumed within Owerri Metropolis, Imo State, Nigeria." Journal of Microbiology and Biotechnology Research 7, no. 2 (2017): 5. http://dx.doi.org/10.24896/jmbr.2017722.

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The sale and consumption of sachet water is common in Owerri metropolis because the consumers believed it was safer than tap or borehole water.The aim of this study was to assess the effects of storage on the bacteriological quality of sachet water produced, sold and consumed within Owerri metropolis, Imo State, Nigeria. Fifteen sachet water brands were investigated for a period of four months. They were collected within 24 hours of production and stored at ambient temperature for four months. Samples were taken on monthly basis for enumeration of total aerobic heterotrophic bacteria and indic

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17

Joy, Nkeiruka Dike-Ndudim, Ngozi Ohalete Chinyere, Augusta Emeh Amara, and Ndubueze Winners. "Characterization of Pathogenic Bacteria Associated with Contamination of Domestic Water in Owerri Area." International Journal of Pharmaceutical and Bio-Medical Science 02, no. 06 (2022): 171–79. https://doi.org/10.5281/zenodo.6759637.

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This study examined characterization of bacteria pathogens associated with domestic water contamination in Owerri area. Ten samples of water were collected from various sources of water in Owerri and were bacteriologically analyzed. Using the Pour-plate method on nutrient agar, MacConkey, and Salmonella-Shigella agar and the Most Probable Number technique, the total heterotrophic count and the most probable number index of coliform using double and single strength MacConkey broth as well as confirmed and completed test were determined. Result was presented in mean ± standard deviation,

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18

Balogun, S. A., A. S. Ayangbenro, G. L. Ogunsanya, A. A. Azeez, C. O. Muonaka, and M. Ihongbe. "Bacteriological pollution indicators in Ogun River flowing through Abeokuta Metropolis." Journal of Science and Technology (Ghana) 36, no. 3 (2017): 54–63. http://dx.doi.org/10.4314/just.v36i3.6.

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Water resources are significant part of integrated community development policy and good health. Hence, the need to reduce the impact of natural and anthropogenic pollution causes so as to enhance water quality. The bacteriological quality of the Ogun River was investigated to determine the sanitary conditions of the water body between March and August, 2014. Total heterotrophic bacteria counts (THBC), total coliform counts (TCC) and total Escherichia coli counts (TEC) using standard plate count and Most Probable Number (MPN) techniques were determined. The isolates were identified using 16SrR

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Sagay, M. O., I. B. Idemudia, E. E. Imarhiagbe, and F. O. Ekhaise. "Evaluation of bacteriological contamination of palms of pupils in the University of Benin Teaching Hospital Staff School, Benin City, Nigeria." Bayero Journal of Pure and Applied Sciences 15, no. 1 (2022): 261–70. http://dx.doi.org/10.4314/bajopas.v15i1.35.

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Hands are the chief organs for physical manipulation of the environment. As a paired organ, the hand is controlled by the opposing brain hemisphere and enables one to all manner of conscious and unconscious activities. The hand serves as a medium for the propagation of microorganism from place to place and from one person to another. A well-structured questionnaire bothering on age, sex and parental social status of the pupils was administered to three hundred and sixty (360) respondents recruited for the purpose of this study in University of Benin Teaching Hospital Staff School (UBTHSS). The

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Nicholas, Chinedu Ewelike, Amarachukwu Okoli Christabel, Nnanyereugo Echendu Macanthony, and Uzoamaka Enekwa Jennifer. "Bacteriological assessment of borehole water in some communities in Owerri West, Southeastern Nigeria." GSC Biological and Pharmaceutical Sciences 18, no. 3 (2022): 177–81. https://doi.org/10.5281/zenodo.6393525.

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The proliferation of boreholes dug by individuals, public and private entities in a bid to overcome the problem of water shortage has caused various communities in Owerri West, southeastern Nigeria to depend on borehole water as readily available water for drinking and domestic purposes. Unfortunately, the water is not treated before it is used for drinking and there is no surveillance of bacteria in the water to ascertain its safety. In consideration of this fact, a study was conducted to assess the bacteriological quality of borehole water in some communities in the area. Borehole water samp

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Rai, Rojina, Bindiya Kumal, Devina Rai, Arun Keshari, and Rima Bhandari. "Bacteriological Evaluation of Bottled Water Commercially Available in Eastern Nepal." Sunsari Technical College Journal 2, no. 1 (2016): 54–57. http://dx.doi.org/10.3126/stcj.v2i1.14801.

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The demand for bottled water is high in these days and it has been a growing concern about the microbiological quality of such processed water. The objective of this study was to assess the heterotrophic contamination and total coliform. This cross-sectional study was carried out in randomly selected 24 different commercial brands of bottled water available in the commercial market of the eastern region of Nepal. Total coliform and heterotrophic bacteria were enumerated by the membrane filtration and spread plate technique, respectively. Among 24 water sample processed, 62.5% (n=15) samples sh

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OMOTOSO, Ayodele Jacob, Esther Omotola DADA, and Olaoluwa OYEDEJI. "Physicochemical and Microbiological Assessment of Selected Hand-Dug Wells for Water Quality in Ilesa Metropolis, Southwest Nigeria." Notulae Scientia Biologicae 10, no. 1 (2018): 52–59. http://dx.doi.org/10.15835/nsb10110058.

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The present study investigated the physicochemical and microbiological assessment of selected hand-dug wells for water quality in Ilesa metropolis. The aim was to assess the groundwater quality. Twenty-five (25) hand-dug wells were randomly selected and water samples were collected four times spanning through the rainy and dry seasons. Physical parameters (ambient air temperature, water temperature, colour, turbidity and total dissolved solids), chemical (pH, conductivity, calcium, magnesium, total hardness, chlorides, sulphates, phosphates and nitrates) and microbiological parameters (total h

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Ferreira, Ana-Cristina, Paula Vasconcellos Morais, and Milton S. da Costa. "Alterations in total bacteria, iodonitrophenyltetrazolium (INT)-positive bacteria, and heterotrophic plate counts of bottled mineral water." Canadian Journal of Microbiology 40, no. 1 (1994): 72–77. http://dx.doi.org/10.1139/m94-012.

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The quantitative variation in the microflora in bottled mineral waters stored in polyvinyl chloride bottles was studied immediately after bottling and after 7 days storage, over 9 months. The microflora was determined by combining total counts using ethidium bromide, and the number of iodonitrophenyltetrazolium (INT)-positive cells determined with heterotrophic plate counts on R2A for prolonged incubation periods at 22 and 37 °C. Immediately after bottling of mineral water A, the total counts with ethidium bromide varied between 70.0 and 495.0 bacteria/mL. The number of INT-positive bacteria v

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Ichor, T., B. L. Ityonah, M. T. Asoo, and E. F. Ahuekwe. "Effects of Glyphosate and Butachlor Herbicides Concentrations on Resident Culturable Bacterial Populations from Surface Water Sources in Makurdi: A Microcosm Study." IOP Conference Series: Earth and Environmental Science 1054, no. 1 (2022): 012008. http://dx.doi.org/10.1088/1755-1315/1054/1/012008.

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Abstract The effect of different concentrations of herbicides on bacterial isolates from various surface water sources was undertaken. The research was aimed at the isolation, identification and characterization of bacteria from selected surface water sources, in order to ascertain the effects of varying concentrations of herbicides on resident bacterial populations. Samples were obtained from five different surface water sources and sediments in Makurdi, using sterilized plastic containers. The herbicides used were Butachlor and Glyphosphate ammonium salt with Rid-over’s trade name (500, 250,

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Payment, Pierre, France Gamache, and Gilles Paquette. "Microbiological and virological analysis of water from two water filtration plants and their distribution systems." Canadian Journal of Microbiology 34, no. 12 (1988): 1304–9. http://dx.doi.org/10.1139/m88-228.

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The microbial flora of the water produced by two water filtration plants and their drinking water distribution system were evaluated: the Pont-Viau (PV) and the Repentigny (RE) water filtration plants. Untreated water entering the plants contained 3.6 (PV) and 16.8 most probable number of infectious units (mpniu)/L (RE) enteric viruses and total coliform bacteria counts were 300 000 (PV) and 500 000 cfu/L (RE). Treated water leaving the plant was essentially free of all the bacterial indicators measured (total, stressed, and fecal coliforms; Aeromonas hydrophila; Pseudomonas aeruginosa; Clostr

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Garcés, Marisa, Tamara Rubilar, Maximiliano Cledon, and Cynthia Sequeiros. "Temporal dynamics of bacterial populations in recirculating aquaculture systems for sea urchin production." Revista de Biología Tropical 72, S1 (2024): e58882. http://dx.doi.org/10.15517/rev.biol.trop..v72is1.58882.

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Introduction: Sea urchin aquaculture is a rising industry, and in consequence, there is a need to establish optimal culture parameters to ensure the health of the cultured animals. Objective: To evaluate the bacterial counts in the seawater of sea urchin (Arbacia dufresnii) aquaculture recirculating systems (RAS). Methods: The bacteriological water quality of two RAS containing sea urchins was determined. For approximately two months, weekly water samples were taken. The bacteriological quality was determined by counting total aerobic heterotrophic populations, lactic acid bacteria

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Nkanang, A. J., N. A. Abraham, D. I. Udoh, C. I. Udosen, E. J. Udofa, and S. K. Anene. "Bacteriological assessment of crab (Pachycheles pubescens) and dog whelk (Nucella lapillus) shellfishes from mesotidal estuarine ecosystem." African Journal of Clinical and Experimental Microbiology 24, no. 2 (2023): 204–10. http://dx.doi.org/10.4314/ajcem.v24i2.10.

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Background: Shellfishes are susceptible to a wide variety of bacterial pathogens, most of which are capable of causing disease in humans but are considered to be saprophytic in nature. Bacteriological diversity of shellfishes depends on the fishing grounds, habitats and environmental factors around them. This study assessed the bacteria associated with shellfishes, Pachycheles pubescens (crab) and Nucella lapillus (dog whelk) harvested from mesotidal estuarine ecosystem. Methodology: The bacteriological assessment of crab (Pachycheles pubescens) and dog whelk (Nucella lapillus) harvested

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Austin, A. Okwelle. "Assessment of the microbiological quality of tiger nut (Cyperus esculentus) drink sold in Ignatius Ajuru University of Education, Port Harcourt, Nigeria." World Journal of Biology Pharmacy and Health Sciences 1, no. 2 (2020): 009–17. https://doi.org/10.5281/zenodo.4430210.

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This research work assessed the microbiological quality of tiger nut juice (<em>Cyperus esculentus L</em>.) sold at Ignatius Ajuru University of Education, Port Harcourt. A total of six samples were purchased from different vendors selling in the University main campus. Microbiological analysis was done using nutrient agar, MacConkey agar and Potato dextrose agar media to culture, enumerate and isolate organisms from the samples. The total aerobic heterotrophic bacterial count, coliform count, and fungal count, were estimated by the pour plate techniques. The results revealed that total hetero

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Akomah-Abadaike, O. N., and O. B. Iwuji. "Antibiogram Screening of Edible oils Sold in two Geopolitical Zones of Nigeria." Journal of Applied Sciences and Environmental Management 25, no. 5 (2021): 867–70. http://dx.doi.org/10.4314/jasem.v25i5.28.

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Edible oil is of the most important and widely used processed foods. The study was carried out to assess the microbiological quality of edible oil (Shea butter, Coconut oil and Palm Kernel oil) from two geopolitical zones of the country. A total of thirty (30) samples were gotten from four (4) different markets in the two geopolitical zones. Bacteria and Fungi were isolated and identified base on cultural, microscopic, biochemical characteristics and antibiotic sensitivity test were carried out. The total heterotrophic bacteria count (THBC) of the sample ranged from 3.1 x 103 – 3.6 x 104cfu/ml

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Kuzmanović, Ana, Dragana Tamindžija, Kristina Kokotović, et al. "Nitrogen-cycling bacteria of the typical soil types in Vojvodina (Serbia): Insights into the relationship with soil chemical properties." Ratarstvo i povrtarstvo, no. 00 (2025): 11. https://doi.org/10.5937/ratpov62-55776.

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Soil quality monitoring is essential in agricultural regions such as the Autonomous Province of Vojvodina, Serbia. The abundance of bacterial functional groups involved in the nitrogen cycle presents a good indicator of nitrogen forms in soil and soil fertility. This study aimed to assess the abundances of selected bacterial functional groups across three different soil types in Vojvodina and to examine their correlation with soil chemical properties. Analyzed soil types (chernozem, solonchak, vertisol) were sampled at nine locations, with two agricultural and one control plot at each location

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Simon-Oke, I. A., O. O. Oladele, and O. E. Dada. "Microorganisms in Soil and Groundwater of Epe and Laje Solid Waste Dumpsites in Ondo Town, Nigeria." Journal of Applied Sciences and Environmental Management 27, no. 2 (2023): 217–322. http://dx.doi.org/10.4314/jasem.v27i2.19.

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The menace of open dumps is a serious concern in Nigeria because of its associated health hazards. In this work, microorganisms in soil and groundwater of Epe and Laje dumpsites which are two major dumpsites in Ondo metropolis, Nigeria were investigated using standard techniques. Bacteria isolates were later identified based on their colonial morphology, cellular morphology and their biochemical characteristics while cotton in blue lactophenol technique was used for fungal identification. Epe had higher bacteria counts (cfu/ml) in both top soil (122.0 ×106) and subsoil (72.0 ×106) when compare

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Egbomuche, R. C., U. N. Ekwenye, O. J. Akinjogunla, A. O. Ikeh, and S. B. Akpan. "Bacterial and Fungal Isolates from Crude Oil Polluted Sediment in Eniong River, Itu, Nigeria." Journal of Basics and Applied Sciences Research 2, no. 1 (2024): 1–11. http://dx.doi.org/10.33003/jobasr-2024-v2i1-32.

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The need to know the level of contamination of radioactive elements, especially Microbial populations are crucial for the environment, providing vital ecosystem services such as biogeochemical cycling, decomposition, and degradation, which essential vital for the survival of all life forms on Earth. This study investigated the heterotrophic bacterial and fungal isolates in crude oil polluted sediment from the Eniong River using standard conventional analytical and culture-dependent techniques. The mean total heterotrophic bacterial (THBC) and mean total fungal counts (THFC) in sediment samples

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Huo, Lixin, Linlin Pan, Ruya Chen, Baoyou Shi, Haibo Wang, and Shouyang He. "Effects of disinfectants and particles on the occurrence of different microorganisms in drinking water distribution systems." Environmental Science: Water Research & Technology 7, no. 5 (2021): 983–92. http://dx.doi.org/10.1039/d0ew01119c.

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The effects of disinfectants and particles on different bacteria, including total coliforms, heterotrophic plate count, opportunistic pathogens and amoeba hosts, were investigated in drinking water distribution systems from five treatment plants.

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Alva W, Silvia Silvia Grandies, Sutrisno Anggoro, and Niniek Widyorini. "KELIMPAHAN BAKTERI HETEROTROF DAN WATER QUALITY INDEX PADA KERAPATAN MANGROVE YANG BERBEDA DI DESA BEDONO, SAYUNG, DEMAK." Management of Aquatic Resources Journal (MAQUARES) 6, no. 3 (2018): 215–21. http://dx.doi.org/10.14710/marj.v6i3.20577.

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ABSTRAK Serasah mangrove yang jatuh di lantai mangrove akan di dekomposisi oleh mikroorganisme heterotrof yang memiliki kemampuan mendegradasi serasah mangrove. Tujuan dari penelitian ini adalah mengetahui kerapatan mangrove, total bakteri heterotrof perairan pada beberapa kerapatan mangrove, Indeks Kualitas Air (IKA) serta hubungan kerapatan mangrove dengan total bakteri heterotrof dan Indeks Kualitas Air (IKA) perairan di Desa Bedono, Demak. Penelitian ini menggunakan metode deskriptif, dengan mengukur parameter pendukung yaitu parameter fisika dan kimia, dan melakukan perhitungan kelimpahan

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Hidayah, Siti Nur, Niniek Widyorini, and Pujiono Wahyu Purnomo. "ANALISIS KESUBURAN PERAIRAN WADUK JATIBARANG BERDASARKAN DISTRIBUSI DAN KELIMPAHAN BAKTERI HETEROTROFIK." Management of Aquatic Resources Journal (MAQUARES) 5, no. 4 (2017): 443–52. http://dx.doi.org/10.14710/marj.v5i4.14655.

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ABSTRAKWaduk Jatibarang terletak di Kecamatan Gunungpati, Kota Semarang. Waduk tersebut digunakan sebagai pengendali banjir, tempat pariwisata, kegiatan menangkap ikan, dan rencana akan dibuat sebagai sumber air bersih melalui PDAM. Pemanfaatan waduk untuk berbagai keperluan kemungkinan dapat menurunkan kualitas air dari waduk tersebut. Penelitian ini mengkaji kesuburan perairan Waduk Jatibarang berdasarkan distribusi dan kelimpahan bakteri heterotrofik. Bakteri heterotrofik berperan penting dalam sistem perairan sebagai perombak dan meremineralisasi bahan-bahan organik menjadi komponen anorga

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Abdulsalam, Mustapha. "Bacteriological and Physicochemical Evaluation of Selected Bottled Water Brands in Nasarawa, Kano State, Nigeria." Bioscience Biotechnology Research Communications 15, no. 4 (2022): 496–501. http://dx.doi.org/10.21786/bbrc/15.4.4.

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Twenty-six different brands of bottled water were tested for bacteriological and physicochemical qualities in Nasarawa Local Government Area of Kano State, Nigeria. Bacteriological assessments have been used to outline the wide varieties of heterotrophic bacteria, overall coliform and faecal coliform. The chloride content, pH, temperature, conductivity, flouride content, total hardness and suspended particles have been additionally investigated. The coliform count ranged from 0 to 1000 coliform/100ml of the sample while the heterotrophic bacterial count ranged from 0 to 118 cfu/ml. In the bott

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J. O., Orogu, and Ehiwario N. J. "Microbial and Physicochemical Assessment of Road-Side Roasted Plantain Sold in Isoko North Local Government Area, Nigeria." South Asian Journal of Research in Microbiology 18, no. 9 (2024): 51–62. http://dx.doi.org/10.9734/sajrm/2024/v18i9387.

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A research to investigate microbes present in roadside roasted plantain sold openly and freely in four different locations in Isoko North local government area, Delta State was analyzed. Samples were analyzed for bacteria and fungi using standard microbiological procedures. Five bacteria species and three fungi species were isolated from the samples; Corynebacterium species, Proteus mirabilis, Staphylococcus aureus, Vibrio species, Bacillus subtilis, Candida albicans, Mold species and Rhizopus oryzae respectively. The total bacteria heterotrophic plate count ranges from 7.6 ×103cfu/g to 47.6 ×

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Darlington, Peace, Onoriode Christian Eruteya, and Onyinyechi N. Akomah-Abadaike. "OCCURRENCE OF VIRULENCE GENES OF Staphylococcus aureus AND Escherichia coli IN VENDED FOODS IN SELECTED MOTOR-PARKS IN OBIO/AKPOR, RIVERS STATE." FUDMA JOURNAL OF SCIENCES 8, no. 2 (2024): 5–14. http://dx.doi.org/10.33003/fjs-2024-0802-2326.

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The study aimed at evaluating the microbiological safety of vended foods in selected motor parks in Obio/Akpor Local Government Area, Rivers State, Nigeria. Forty-eight samples obtained from four motor parks (Choba, Rumuokoro, Eliozu and Oil-mill Park) were analyzed using standard microbiological methods for total heterotrophic bacteria count, virulent and antibiotic resistant profiles of Staphylococcus aureus and Escherichia coli. Total heterotrophic bacteria count ranged from 4.60 to 8.39 log10CFU/g. A total of 10 (20.83%) samples were positive for S. aureus while 14 (29.17%) were positive f

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Obi, C. L., N. Potgieter, P. O. Bessong, and G. Matsaung. "Scope of potential bacterial agents of diarrhoea and microbial assessment of quality of river water sources in rural Venda communities in South Africa." Water Science and Technology 47, no. 3 (2003): 59–64. http://dx.doi.org/10.2166/wst.2003.0161.

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The microbial quality of several, usually untreated, surface domestic water sources, used by rural communities in the Venda Region of South Africa, was assessed to gauge their fitness for human consumption and to highlight the possible impact of waterborne diseases. The water sources studied were six points on the Levubu River and the rivers Mutale, Ngwedi, Tshinane, Makonde, Mutshindudi and Mudaswali. Total and faecal coliform, heterotrophic bacteria, enterococci and coliphage counts were used as indicators/surrogates to estimate the degree of bacterial and viral contamination respectively by

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Bishankha, S., D. R. Bhatta, D. R. Joshi, and T. P. Joshi. "Assessment of Microbial Quality of Chlorinated Drinking Tap Water and Susceptibility of Gram-Negative Bacterial Isolates towards Chlorine." Kathmandu University Journal of Science, Engineering and Technology 9, no. 1 (2013): 222–29. http://dx.doi.org/10.3126/kuset.v9i1.63927.

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Sixty (56.1%) water samples crossed the permissible limit of WHO guideline value in heterotrophic plate count and total coliform count each. Ten different genera of gram-negative bacteria were recovered, among which E. coli was predominant followed by Citrobacter spp., Shigella spp., Enterobacter spp., Providencia spp., Klebsiella spp., Salmonella spp., Pseudomonas spp., Proteus spp., and Edwardsiella spp. Higher the temperature of water sample, higher the bacterial growth was obtained (p= 0.002), and similarly, a higher level of free residual chlorine in water reduced the bacterial growth (p=

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Asishana, Paul Onivefu, Loveth Irede Egwonor, Philip Edogun Idemudia, and Joseph Umanya Ovie. "Physicochemical and bacteriological assessment of the polyethene packaged sachet water (popularly called "pure water") as a major source of drinking water in Sagamu, Ogun State, Southwest, Nigeria." World Journal of Advanced Research and Reviews 21, no. 3 (2024): 452–69. https://doi.org/10.5281/zenodo.14057539.

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This study aimed to evaluate the physicochemical and bacteriological characteristics of polyethylene-packaged sachet water, commonly known as "pure water," produced and distributed in the Sagamu local government area of Ogun State, Southwest Nigeria. The research involved analyzing sachet water samples from various producers, sources, and distributors to assess their quality. Samples were collected randomly from six different locations/towns within Sagamu Local Government and subjected to physicochemical and bacteriological analysis. The findings were compared with the permissible limits estab

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Aktar, Lovely, Farhana Islam Khan, Tahmina Islam, Shawon Mitra, and Mihir Lal Saha. "Isolation and Characterization of Indigenous Lipase Producing Bacteria from Lipid?rich Environment." Plant Tissue Culture and Biotechnology 26, no. 2 (2016): 243–53. http://dx.doi.org/10.3329/ptcb.v26i2.30574.

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To isolate and characterize lipase producing bacteria from lipid?rich environment and screen the best lipolytic indigenous bacteria a study was made. For the isolation of bacteria, oil based wastewater and soil were collected from ten different sampling sites. Four different media were used for study the aerobic heterotrophic bacterial count. The highest bacterial count (1.56 × 107 cfu/gm) was observed in dairy farm soil and lowest (8.3 × 102 cfu/ml) in the Buriganga river water. The highest percentage (94.51) of lipase producing bacteria was found in edible oil mill soil and lowest (23.44) in

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Ajibare, A. O., O. O. Olawusi-Peters, and K. A. Oyinlola. "Microbiological load evaluation of white shrimp (Nematopalaemon hastatus Aurivillius, 1898) in the coastal waters of Ondo state, Nigeria." Agricultural Science and Technology 13, no. 4 (2021): 425–31. http://dx.doi.org/10.15547/ast.2021.04.068.

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Abstract. This study investigated the condition factor with microbial load of Nematopalaemon hastatus (Aurivillius, 1898) collected for two years from four coastal towns in Ilaje communities of Ondo State, Nigeria. Shrimps’ weight, length and condition factor were determined using standard methods while estimation of microbial load (Total heterotrophic bacteria, coliform, Escherichia coli, Salmonella/Shigella, and fungal counts) was done using standard microbiological methods. The correlation between microbial load and condition factor was thereafter determined using regression analysis. N. ha

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Figel, Izabel Cristina, Patricia do Rocio Dalzoto, and Ida Chapaval Pimentel. "Microbiological quality of water and dialysate from haemodialysis units in Southern Brazil." Revista do Instituto Adolfo Lutz 74, no. 1 (2015): 66–70. http://dx.doi.org/10.53393/rial.2015.v74.33387.

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Infectious diseases in renal patients may be associated with the dialysis water quality, which may be contaminated with microorganisms. In Brazil, the water quality is evaluated by analyzing total coliforms, heterotrophic bacteria, and bacterial endotoxin, but not Pseudomonas sp. and fungi. Water samples from haemodialysis units in Curitiba/PR were investigated on their conformity with the standard established by the Brazilian Health Ministry. Total coliforms, heterotrophic bacteria, P. aeruginosa and fungi counts were performed according to APHA, and LAL methodology for detecting bacterial en

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Ohanmu, E. O., and G. O. Omoregie. "Extent of cadmium stress on plant growth promoting microorganisms at the rhizosphere layers of S. stenocarpa and V. unguiculata accessions." Journal of Applied Sciences and Environmental Management 26, no. 1 (2022): 11–18. http://dx.doi.org/10.4314/jasem.v26i1.2.

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The importance of role microbes in nodulation of leguminous crops helps in the nutritional diet of the Nigerian populace. However, heavy metal residues from heavy fertilization is a major cause of concern to soil and crop production. The study aimed to isolate and characterize free living microbe (bacteria and fungi) from the soil polluted with cadmium at different ecological screening value (0ESV, 2.5ESV and 5ESV) cultivated with Sphenostylis stenocarpa and Vigna unguiculata compared with similar soil but without the plants. The microbial count was estimated using the Most Probable Number (MP

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Supriyati, Siti, Sutrisno Anggoro, and Niniek Widyorini. "KELIMPAHAN BAKTERI HETEROTROF SEDIMEN PADA BERBAGAI TIPE KERAPATAN DI KAWASAN KONSERVASI MANGROVE DESA BEDONO, KECAMATAN SAYUNG, DEMAK." Management of Aquatic Resources Journal (MAQUARES) 6, no. 3 (2018): 311–17. http://dx.doi.org/10.14710/marj.v6i3.20591.

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ABSTRAK Kawasan mangrove di Desa Bedono Demak merupakan kawasan mangrove yang dijadikan tempat konservasi sekaligus sebagai tempat wisata. Hutan mangrove merupakan tempat berkembangnya berbagai bakteri, keberadaan bakteri memiliki arti yang sangat penting dalam proses dekomposisi pada sedimen. Informasi tentang hubungan kerapatan dengan jumlah bakteri heterotrof diperlukan untuk pengeloaan dan pengkajian lebih lanjut pada kawasan tersebut. Penelitian ini bertujuan untuk mengetahui kondisi kerapatan mangrove dan hubungannya terhadap kelimpahan bakteri heterotrof sedimen di kawasan konservasi ma

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Yusuf UA, Ekeleme IK, Owuna EJ, Ochai SS, and Obiekezie SO. "Effects of spent hydrocarbon on bacteria population." International Journal of Scholarly Research in Science and Technology 2, no. 1 (2023): 001–9. http://dx.doi.org/10.56781/ijsrst.2023.2.1.0033.

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This study aimed at the effect of spent hydrocarbon contamination on microbial population in soil. Standard microbiological methods were used to determine the total heterotrophic count hydrocarbon utilization, isolation and identification of bacterial and effect of pH and spent hydrocarbon concentration on bacterial. The total heterotrophic bacterial count (THB) ranges from 6.2 ± 0.13 x106 to 3.2± 0.10 x106 cfu/g. The total hydrocarbon utilizing bacterial count ranges from 3.2 ± 0.13 x106 to 1.2± 0.10 x106 cfu/g. The bacterial isolated were Bacillus subtilis, Pseudomonas flourescens, Klebsiell

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Bishankha, Suraj, Tista Prasai Joshi, Dev Raj Joshi, and Dwij Raj Bhatta. "Assessment of Microbial Quality of Chlorinated Drinking Tap Water and Susceptibility of Gram Negative Bacterial Isolates Towards Chlorine." Nepal Journal of Science and Technology 13, no. 1 (2013): 173–78. http://dx.doi.org/10.3126/njst.v13i1.7456.

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Sixty (56.1%) water samples crossed the permissible limit of WHO guideline value in heterotrophic plate count and total coliform count each. Ten different genera of gram negative bacteria were recovered in which E. coli was predominant followed by Citrobacter spp., Shigella spp., Enterobacter spp., Providencia spp., Klebsiella spp., Salmonella spp., Pseudomonas spp., Proteus spp. and Edwardsiella spp. Higher the temperature of water sample, higher the bacterial growth was obtained (p= 0.002), and similarly higher level of free residual chlorine in water reduced the bacterial growth (p= 0.037)

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Ebabhamiegbebho, P. A., E. S. Abel, and Clementina Solomon. "An evaluation of the microbiological quality of commercial beef Suya sold in Benin city, South south of Nigeria." ADAN Journal of Agriculture 1, no. 1 (2020): 180–90. http://dx.doi.org/10.36108/adanja/0202.10.0102.

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The safety of suya a ready to eat barbecue meat for consumption has been of growing concern as a result of the handling practices associated with its processing . Of major concern is the microbiological quality of the product. This study evaluate d the microbial content of suya meat processed and consumed in Benin City , Edo State, Nigeria . A total of nine (9) suya meat samples were purchased from popular suya spots within each of the three Loc al Government Areas of Benin City, namely: Ikpoba Okha, Egor and Oredo. Samples were subjected to microbiological analysis by first evaluating for the

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Ekesiobi, A. O., C. M. Iheukwumere, I. H. Iheukwumere, et al. "Upshot of Urine on Beneficial Soil Bacteria." Journal of Pollution Monitoring, Evaluation Studies and Control 4, no. 2 (2025): 100–103. https://doi.org/10.54117/jpmesc.v4i2.18.

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Nigeria's soil quality is compromised by human activities, disrupting nutrient cycles and affecting soil health. While pollutants harm soil fertility, certain sustainable practices can enhance soil quality by promoting beneficial bacteria and nutrient retention, highlighting the need for balanced human interaction with the soil ecosystem.. This study investigates the impact of urine contamination on soil quality, specifically focusing on nutrient-cycling bacteria. Thirty composite soil samples were collected from urinating sites in Uli community using a sterile soil auger. The samples were ana

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