Relevant bibliographies by topics / Microbial count

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Microbial count'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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Journal articles on the topic "Microbial count"

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Jimoh, WA, MO Oladele-Bukola, MD Adebayo, AA Yusuff, FA Azeez, and OO Salami. "Microbial flora of the gastro-intestinal tract of Clarias gariepinus caught from river Dandaru Ibadan, Nigeria." Sokoto Journal of Veterinary Sciences 12, no. 2 (2014): 19–24. http://dx.doi.org/10.4314/sokjvs.v12i2.4.

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The study reports the microbial load and diversity in the gastro-intestinal tract of Clarias gariepinus caught in River Dandaru, Ibadan. A set of adult samples of Clarias gariepinus was caught from the river Dandaru, Ibadan. Determination of microbial loads and characterization of microorganisms present in the gut region of the captured Clarias gariepinus were carried out using standard microbiological procedures. The fungi isolated were Aspergillus niger, Aspergillus flavus, Penicillium atrovenetum and Penicillium expansum while the bacteria isolated were Pseudomonas fluorescens, Bacillus alv
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RIVAS, TERESA, JUAN A. VIZCAÍNO, and FRANCISCO J. HERRERA. "Microbial Contamination of Carcasses and Equipment from an Iberian Pig Slaughterhouse." Journal of Food Protection 63, no. 12 (2000): 1670–75. http://dx.doi.org/10.4315/0362-028x-63.12.1670.

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The microbial contamination of carcasses and equipment has been studied in an industrial slaughterhouse of Iberian pigs. Samples of the surface of carcasses were taken at different stages of the process and aerobic plate count at 37°C (APC), Enterobacteriaceae-count (E-count) and Escherichia coli-count (EC-count) were determined. It was demonstrated that in scalding and singeing the APC decreased (P < 0.01), while in the dehairing it increased (P < 0.01). The E-count and EC-count decreased in the scalding but increased in the evisceration (P < 0.001). The implementation of
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M., Suhaili, Nor-Khaizura M.A.R., Nur Hanani Z.A., Ismail-Fitry M.R., Samsudin N.I.P., and Jambari N.N. "Assessment of Microbiological Safety and Physicochemical Changes of Grey Oyster Mushroom (Pleurotus sajor-caju) during Storage at 4 °C and 25 °C." Sains Malaysiana 50, no. 10 (2021): 2993–3002. http://dx.doi.org/10.17576/jsm-2021-5010-13.

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This study aimed to evaluate the microbiological and physicochemical properties of grey oyster mushroom during storage (day 0, 3, 6, 9, 12) at 4 °C and 25 °C. The microbial quality and safety analyses were aerobic plate count (APC), yeast and mould count, Escherichia coli count, Bacillus cereus count, and Listeria monocytogenes count, while the physicochemical analyses were pH, water activity, colour, and firmness. Grey oyster mushroom stored at 4 °C showed increasing trend in all microbial counts. A similar trend was observed at 25 °C, but with higher microbial counts except for L. monocytoge
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Afrin, S., MM Hossain, M. Khan, and MD Hossain. "Microbial assessment of beef in selected areas of Mymensingh district in Bangladesh." Bangladesh Journal of Animal Science 46, no. 4 (2018): 244–48. http://dx.doi.org/10.3329/bjas.v46i4.36965.

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This study was conducted to evaluate microbial load of beef meat during handling and selling in market. Total 12 samples were collected from K.R market, Sheshmore market, Kewatkhali bazaar and Mymensingh Sadar market. These samples were subjected to determine Total Viable Count (TVC), Total Coliform Count (TCC) and Total Yeast and Mould Count (TYMC) by using standard protocol at 0 hr, 2hrs and 5hrs time intarvel. The microbial counts of beef at different markets were high but there were no significant differences (p>0.05) among the markets. In every cases with the increased of time interval
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Dabasso, Buke G., Anselimo O. Makokha, Arnold N. Onyango, Julius M. Mathara, and Qabale D. Badake. "Effect of Temperature, Storage Containers and Improved Hygiene on Microbial Safety and Chemical Quality of Traditional Meat Products." European Journal of Agriculture and Food Sciences 3, no. 4 (2021): 71–77. http://dx.doi.org/10.24018/ejfood.2021.3.4.317.

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Preservation of meat and meat products is important due to its short shelf life and perishability. The pastoralists of Northern Kenya processed and preserved traditional meat products for consumption. The traditional meat products are relished food both for nutritional and cultural heritage among the Borana pastoralists. The study was carried out to assess the microbial safety and chemical quality of traditional meat products. The samples were collected immediately after processing and transported in a cool box to the food laboratory for microbial analysis and determination of changes related
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Chiu, Chun-Huo, and Anne Chao. "Estimating and comparing microbial diversity in the presence of sequencing errors." PeerJ 4 (February 1, 2016): e1634. http://dx.doi.org/10.7717/peerj.1634.

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Estimating and comparing microbial diversity are statistically challenging due to limited sampling and possible sequencing errors for low-frequency counts, producing spurious singletons. The inflated singleton count seriously affects statistical analysis and inferences about microbial diversity. Previous statistical approaches to tackle the sequencing errors generally require different parametric assumptions about the sampling model or about the functional form of frequency counts. Different parametric assumptions may lead to drastically different diversity estimates. We focus on nonparametric
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Naeem, Naureen, Saima Ahmad, Shoaib Ahmad Siddiqi, and Mona Hassan. "Microbial Quality of Fresh and Frozen Fish from Markets of Lahore." Lahore Garrison University Journal of Life Sciences 1, no. 3 (2020): 144–50. http://dx.doi.org/10.54692/lgujls.2017.010318.

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The present study aims at the microbiological analysis of market oriented fresh and frozen fish. Displayed portions of raw fish and frozen carried bacteria that can cause foodborne diseases clearly indicates the risk posed by poor sanitation and unhygienic handling, storage and transportation conditions of fish sold in the markets. Research was designed to compare the presence of indigenous and nonindigenous foodborne bacterial pathogens in displayed, prepacked and packed portions of fish in different markets of Lahore, Pakistan. A total 40 samples of fish were purchased from Super Store (Hype
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Waris, Muhammad Anugerah Alam, and Indarto A.S. "Total Plate Count of Turmeric-Tamarind Herbal Medicine Sold in Mojayan Traditional Market, Klaten, Indonesia." Indonesian Journal of Pharmaceutical Education 5, no. 2 (2025): 260–68. https://doi.org/10.37311/ijpe.v5i2.31476.

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This study assessed microbial contamination in turmeric-tamarind herbal medicine (jamu kunyit asam) sold in Mojayan Traditional Market, Klaten, using the Total Plate Count (TPC) method. This descriptive observational study analyzed three samples collected from different vendors. Each sample was diluted, cultured on Plate Count Agar (PCA), and incubated at 37 °C for 24 hours to determine microbial colony counts. The microbial load ranged from 1.92 × 10⁶ to 2.55 × 10⁶ CFU/mL, all below the maximum permissible limit of 5 × 10⁷ CFU/mL as regulated by BPOM (Regulation No. 29 of 2023). These finding
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Englehardt, James D., Nicholas J. Ashbolt, Chad Loewenstine, Erik R. Gadzinski, and Albert Y. Ayenu-Prah. "Methods for assessing long-term mean pathogen count in drinking water and risk management implications." Journal of Water and Health 10, no. 2 (2012): 197–208. http://dx.doi.org/10.2166/wh.2012.142.

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Recently pathogen counts in drinking and source waters were shown theoretically to have the discrete Weibull (DW) or closely related discrete growth distribution (DGD). The result was demonstrated versus nine short-term and three simulated long-term water quality datasets. These distributions are highly skewed such that available datasets seldom represent the rare but important high-count events, making estimation of the long-term mean difficult. In the current work the methods, and data record length, required to assess long-term mean microbial count were evaluated by simulation of representa
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Henry, J. G., and D. Prasad. "Microbial Aspects of the Inuvik Sewage Lagoon." Water Science and Technology 18, no. 2 (1986): 117–28. http://dx.doi.org/10.2166/wst.1986.0021.

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A facultative sewage lagoon in Inuvik, N.W.T. was studied in August (ice free) and November (ice covered) 1984. Emphasis was placed on the microbiological aspects and their relation to lagoon performance. Analyses performed included, pH, total alkalinity, total solids, suspended solids, volatile solids, COD and BOD5 determinations. The microbiological tests included total plate counts (20°C) and psychrotrophic counts (1°C). Results indicated that the Inuvik sewage lagoon system achieved removal efficiencies, ranging from 90% BOD5 removal in summer to about 80% in winter. The total bacterial co
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Dissertations / Theses on the topic "Microbial count"

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Alsaadi, Yousef Saeed. "Practical use and development of biomérieux TEMPO® system in microbial food safety." Diss., Kansas State University, 2014. http://hdl.handle.net/2097/18708.

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Doctor of Philosophy<br>Department of Food Science<br>Daniel Y.C. Fung<br>In the food industry, coliform testing is traditionally done by the time consuming and labor intensive plate count method or tube enumeration methods. The TEMPO® system (bioMérieux, Inc.) was developed to improve laboratory efficiency and to replace traditional methods. It uses a miniaturization of the Most Probable Number (MPN) method with 16 tubes with 3 dilutions in one single disposable card. It utilizes two stations: the TEMPO® Preparation station and the TEMPO® Reading station. In this study, the Oxyase® (Oxyase®,
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Aspevall, Olle. "Diagnosis of urinary tract infections : aspects of quality assurance and communication of concepts /." Stockholm, 2001. http://diss.kib.ki.se/2001/91-628-4899-2/.

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Jernberg, Cecilia. "Use of microbiomics to study human impacts on complex microbial communities /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-960-2/.

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Andersson, Klara, Wiktor Gustafsson, Fredrik Lindeberg, Tobias Luckey, and Elin Ramström. "Count Your Microbial Enemies Faster : Recommending the Best Bioburden Test for High-Fat Parenteral Nutrition." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-323557.

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Shikwambana, Sydney. "Microbial population dynamics, enzyme activity and quantification of nutrient release in soil amended with composed with varying degree of maturity." Thesis, University of Limpopo, 2015. http://hdl.handle.net/10386/1540.

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Thesis (M. Sc. Agriculture (Soil Science)) -- University of Limpopo, 2015<br>The activity and functional diversity of micro-organisms contribute to the stability and productivity of agro-ecosystems. Soil micro-organisms and enzyme activities have been suggested as potential indicators of soil quality. Hence, management practices that can enhance microbial diversity and enzyme activities are essential for improving soil health and soil fertility status. The aim of the study was to assess the effects of compost maturity age on the change in bio-quality indicators of compost and compost amended s
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Maraha, Ninwe. "Physiological status of bacteria used for environmental applications /." Stockholm, 2007. http://diss.kib.ki.se/2007/91-7357-063-X/.

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Oliveira, Andréa Ranucci. "Avaliação microbiológica de circuitos respiratórios e anestésicos submetidos ao processo de desinfecção térmica." Faculdade de Medicina de São José do Rio Preto, 2012. http://bdtd.famerp.br/handle/tede/203.

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Made available in DSpace on 2016-01-26T12:51:48Z (GMT). No. of bitstreams: 1 andrearanuccideoliveira_dissert.pdf: 891643 bytes, checksum: 8f4fb2c47edb543f3ffbf41be6a1179a (MD5) Previous issue date: 2012-04-12<br>Introduction: The reprocessing and reuse of medical practices are common in health care institutions in Brazil and several countries. However, it is necessary to establish parameters to guide the development, validation and implementation of reprocessing protocols, in order to ensure product quality and safety and health of patients. This conduct is an important infection control act
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Agvald-Öhman, Christina. "Colonization, infection and dissemination in intensive care patients /." Stockholm : Karolinska institutet, 2007. http://diss.kib.ki.se/2007/978-91-7357-075-6/.

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Vilas-Boas, Vanessa Aparecida 1981. "Carga microbiana de trocartes reprocessaveis apos laparoscopias ginecologicas." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/311014.

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Orientador: Maria Isabel Pedreira de Freitas<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas<br>Made available in DSpace on 2018-08-14T15:03:05Z (GMT). No. of bitstreams: 1 Vilas-Boas_VanessaAparecida_M.pdf: 29367721 bytes, checksum: c5b64e8b977736f8ec3c05b44d7edf96 (MD5) Previous issue date: 2009<br>Resumo: A transmissão de infecções hospitalares está relacionada à sobrevivência de microrganismos nas superfícies ambientais e no instrumental cirúrgico. Nos últimos anos, o Brasil tem se deparado com um cenário disperso em relação à validação do pro
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Bellali, Sara. "Évaluation de l'impact de la conservation sur la viabilité et la cultivabilité du microbiote intestinal humain." Thesis, Aix-Marseille, 2019. http://theses.univ-amu.fr.lama.univ-amu.fr/191121_BELLALI_58q14hn462lvr402balo_TH.pdf.

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Le microbiote intestinal humain abrite un grand nombre de micro-organismes qui jouent un rôle crucial dans la santé humaine. Cependant, le nombre de bactéries détectées par des méthodes quantitatives indépendantes de la culture s'est révélé beaucoup plus élevé que celui des bactéries cultivées sur des géloses. Cet écart est connu sous le nom de la « Great plate count anomaly ». L'objectif principal de ce travail était d'expliquer ''l’incultivabilité" des bactéries intestinales et de maintenir leur viabilité. Dans ce travail, nous avons constaté que l'exposition à l'oxygène pendant plus d'une h
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Books on the topic "Microbial count"

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Hattori, Tsutomu. The viable count: Quantitative and environmental aspects. Science Tech Publishers, 1988.

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Fikhte, B. A. (Boris Abramovich), ed. Metody opredelenii͡a zhiznesposobnosti mikroorganizmov. Nauch. t͡sentr biologicheskikh issledovaniĭ AN SSSR v Pushchine, 1990.

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Vogel, J. R. Microbe concentrations, laser particle counts, and stable hydrogen and oxygen isotope ratios in samples from a riverbank filtration study, Platte River, Nebraska, 2002 to 2004. U.S. Geological Survey, 2005.

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E, Stanley P., McCarthy B. J, and Smither R, eds. ATP luminescence: Rapid methods in microbiology. Blackwell Scientific Publications, 1989.

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J, Lopes Thomas, Flood Control District of Maricopa County, and Geological Survey (U.S.), eds. Statistical summary of selected physical, chemical, and microbial charateristics, and estimates of constituent loads in urban stormwater, Maricopa County, Arizona. U.S. Dept. of the Interior, U.S. Geological Survey, 1995.

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Kirchman, David L. Microbial growth, biomass production, and controls. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198789406.003.0008.

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Soon after the discovery that bacteria are abundant in natural environments, the question arose as to whether or not they were active. Although the plate count method suggested that they were dormant if not dead, other methods indicated that a large fraction of bacteria and fungi are active, as discussed in this chapter. It goes on to discuss fundamental equations for exponential growth and logistic growth, and it describes phases of growth in batch cultures, continuous cultures, and chemostats. In contrast with measuring growth in laboratory cultures, it is difficult to measure in natural env
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Kirchman, David L. The ecology of viruses. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198789406.003.0010.

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In addition to grazing, another form of top-down control of microbes is lysis by viruses. Every organism in the biosphere is probably infected by at least one virus, but the most common viruses are thought to be those that infect bacteria. Viruses come in many varieties, but the simplest is a form of nucleic acid wrapped in a protein coat. The form of nucleic acid can be virtually any type of RNA or DNA, single or double stranded. Few viruses in nature can be identified by traditional methods because their hosts cannot be grown in the laboratory. Direct count methods have found that viruses ar
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Shiozawa, Tracy L. An epifluorescence method for assessing viability of bacteria in soil aggregates. 1999.

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Microbiological screening of the indoor air quality in the Polk County Administration building: Project summary. U.S. Environmental Protection Agency, National Risk Management Research Laboratory, 1995.

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(Editor), P. E. Stanley, and R. Smither McCarthy (Editor), eds. ATP Luminescence: Rapid Methods in Microbiology (Technical Series (Society for Applied Bacteriology)). Blackwell Publishing Limited, 1990.

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Book chapters on the topic "Microbial count"

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Clark, Francis E. "Agar-Plate Method for Total Microbial Count." In Agronomy Monographs. American Society of Agronomy, Soil Science Society of America, 2016. http://dx.doi.org/10.2134/agronmonogr9.2.c48.

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Biswas, Surojit, Meredith McDonald, Derek S. Lundberg, Jeffery L. Dangl, and Vladimir Jojic. "Learning Microbial Interaction Networks from Metagenomic Count Data." In Lecture Notes in Computer Science. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-16706-0_6.

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Ouverney, Cleber C., and Jed A. Fuhrman. "Section 8 update: Correlating single-cell count with function in mixed natural microbial communities through STARFISH." In Molecular Microbial Ecology Manual. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-2177-0_808.

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Joseph, Tyler A., Amey P. Pasarkar, and Itsik Pe’er. "Efficient and Accurate Inference of Microbial Trajectories from Longitudinal Count Data." In Lecture Notes in Computer Science. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45257-5_27.

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Hertrich, Sarah M., and Brendan A. Niemira. "Beyond the Standard Plate Count: Genomic Views into Microbial Food Ecology." In Food Safety and Quality-Based Shelf Life of Perishable Foods. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-54375-4_7.

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Bloem, Jaap. "Fluorescent staining of microbes for total direct counts." In Molecular Microbial Ecology Manual. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0351-0_25.

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Bloem, Jaap, and An Vos. "Section 4 update: Fluorescent staining of microbes for total direct counts." In Molecular Microbial Ecology Manual. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-2177-0_402.

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Jacobs, Joela. "Pollen." In Microbium. punctum books, 2023. http://dx.doi.org/10.53288/0396.1.08.

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When you are inhaling pollen, your body has been penetrated by a little package of plant sperm. Pollen grains are multicellular organisms that contain male sex cells, and their job is to get this sperm to the egg to facilitate fertilization. For that, they hitch a ride on insects or trust their fate to wind, water, and any other moving means, including us. Yet most human-pollen encounters are only noticed when they result in an allergic reaction. Allergies have been on the rise, which is at least partly because pollen is too: Pollen counts have been going up in urban environments due to the te
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Kiss, S., and M. Simihăian. "Effect of Urease Inhibitors on Other Enzyme Activities, Microbial Counts and Biomass as well as on Respiration and Other Microbial Processes in Soils." In Improving Efficiency of Urea Fertilizers by Inhibition of Soil Urease Activity. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-1843-1_9.

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Bratbak, Gynoar, and Mikal Heldal. "Total Count of Viruses in Aquatic Environments." In Handbook of Methods in Aquatic Microbial Ecology. CRC Press, 2018. http://dx.doi.org/10.1201/9780203752746-17.

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Conference papers on the topic "Microbial count"

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Haile, Tesfaalem, Trevor Place, Danielle Kiesman, Jennifer Sargent, Tamer Crosby, and John Wolodko. "Assessment of Microbially Influenced Corrosion Threats Using Molecular Microbiological Methods." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09384.

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Abstract The presence of solids with nutrients that can support the growth of microbial communities may lead to microbially influenced corrosion (MIC) in carbon steel pipelines. Many factors affect MIC rates, for example, biofilms in pipeline sludges can produce corrosive chemicals that can attack metals, alter local acidity, and create differential aeration and galvanic cells. This paper examined the microbial diversity of sludges obtained from four (4) different locations of a crude oil transmission system. Bacterial activity reaction tests (BARTTM) and molecular microbiological methods (MMM
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Jia, Ru, Hasrizal Bin Abd Rahman, Dongqing Yang, and Tingyue Gu. "Investigation of the Impact of an Enhanced Oil Recovery Polymer on Microbial Growth and MIC." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-10567.

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Abstract In the oil and gas industry, water flooding, often with a polymer additive, is used in enhanced oil recovery (EOR) to increase reservoir pressure because reservoirs are aging. This practice causes operational concerns because water flooding brings nutrients and microbes downhole, which may allow microbes to flourish. Polymers such as carboxymethyl cellulose sodium are used in EOR to increase the viscosity of the injection water. However, there is a possibility that EOR polymers may be utilized as a carbon source by microbes downhole causing reservoir souring and microbiologically infl
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Chen, Bingzhi, Yikun Guo, Xiao Zhang, Ben Brock, and Jessica Grailer. "A Robust Non-Phosphorus Cooling Water Treatment Program That Reduces the Biological Control Challenge - Case Studies." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17626.

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Abstract In open cooling water systems, phosphorus-based (P-based) programs are the most widely used treatment program for corrosion and scale control. Excellent performance of P-based programs has been long proved in many institutional and industrial applications. Despite this high performance, phosphorus is one of the limiting nutrients to bacteria and may accelerate microbial growth if with excess concentration. A recently developed and innovative non-phosphorus (non-P) program has been deployed globally, not only to comply with discharge regulations, but also to provide additional benefits
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Franklin, M. J., D. E. Nivens, M. W. Mittelman, et al. "An Analogue Mic System with Specific Bacterial Consortia, to Test Effectiveness of Materials Selection and Countermeasures." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89513.

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Abstract ABSTRACT A standardized system has been established wherein microbes were recovered from specific sites (waters, sediments, slimes, tubercles) and at least six physiologically different groups of microbes were characterized and identified. These organisms were selected for properties known to be associated with microbial influenced corrosion (MIC), such as slime formation, acid production, sulfate reduction, iron chelation and precipitation, and hydrogen utilization. The organisms were characterized by their fatty acid composition. Coupons of the test material were embedded in epoxy,
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Wrangham, Jodi B., Adam Bounds, Jerry L. Conaway, Jim Ott, Mason Long, and Corey Stevens. "Remediation of Microbially Contaminated Horizontal Wells with Acrolein." In CORROSION 2020. NACE International, 2020. https://doi.org/10.5006/c2020-14992.

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Abstract The lengthy laterals of horizontal wells often pose microbiological challenges, as they provide more area to become microbially contaminated and require larger volumes of fluid and biocide for treatment. A Permian Basin oilfield has been experiencing MIC-related failures in its horizontal wells, which is of concern due to the associated high workover cost. Laboratory biocide challenge testing identified several common oilfield chemistries and combinations thereof as being effective against this field’s population of microbes. However, aggressive applications of these products in the f
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Norizam, Nik Nor Azrizam Nik, Hasrizal A. Rahman, and Azmi Mohammed Nor. "A New Biocide Enhancer for a Better Pipeline Treatment." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-20576.

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Abstract Biocide Enhancer (BioMETT) is a PETRONAS in-house chemical technology developed by PETRONAS Research Sdn Bhd (PRSB). BioMETT development took place back in 2015 where PRSB started to develop a biocide enhancer formulation that could enhance and boost up further the efficacy of current Tetrakis(hydroxymethyl)phosphonium Sulfate (THPS) biocide used by operation in mitigating corrosion problem inside crude oil pipelines due to Microbial Induced Corrosion (MIC). PRSB continued to test out the formulation in the actual offshore field environment where the BioMETT technology was piloted in
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Brown, Damon C., Shawna Johnston, Pat Teevens, and Raymond J. Turner. "Relationship between Planktonic and Sessile Cells as They Relate to Biofilm Growth." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07571.

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Abstract Microbially influenced corrosion (MIC) is a process whereby microbial cells living in an exopolymer matrix, known as a biofilm, induce corrosion of the associated surface. The risk of MIC within a system is usually assessed by measuring planktonic (free-floating) cells, which is assumed to approximate the biofilm-associated cells (sessile) cells. This work aimed to determine the accuracy of this industry-practiced approach of assessing MIC risk from planktonic cell counts. Planktonic and sessile cell counts of two single species cultures, one of an aerobe (Pseudomonas fluorescens) and
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von Rège, Henry, Wolfgang Sand, Sybille Bixer, Helmut Dieckmann, and Michael Renner. "Monitoring of Biofilm Development in Process Water." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00346.

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Abstract Biofilm monitoring on carbon and different stainless steel types was performed using a mobile mini-plant as bypass to an industrial water system in a 10 month experiment. Biofilms were analyzed for cell counts of MIC-relevant bacteria from the sulfur-/iron-/manganese-/nitrogen-cycle, microbial activity, and the content of corrosive elements (chloride, sulfur, manganese). Biofilms on carbon steel exhibited a higher microbial diversity, higher cell counts, and a higher microbial activity as on stainless steels. Chemoorganotrophic bacteria were the dominant group in the biofilm-biocoenos
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Videla, Hector A., M. M. S. Freitas, M. R. Araujo, and R. A. Silva. "Corrosion and Biofouling Studies in Brazilian Offshore Seawater Injection Systems." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89191.

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Abstract Interaction between corrosion and microfouling of constructional materials immersed in seawater is an important aspect which hightlights the role played by MIC (Microbiologically Induced Corrosion) in offshore oil production platforms and piping. Corrosion and microfouling studies were conducted in two different brazilian systems using corrosion coupons for weight loss measurements and polarization resistance methods in the field trials. Potentiodynamic polarization tests were conducted in the laboratory. Microfouling deposition was followed by using two different monitoring devices f
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Williams, Terry M., and John W. Holz. "Biofouling Studies with Methylchloro/Methylisothiazolone in Model Cooling Systems." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98298.

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Abstract Model systems were developed to evaluate microbial growth on surfaces and to determine the efficacy of biocides. Dynamic systems were used to simulate key operating parameters in industrial cooling towers. Biofouling was measured on wood, stainless steel, and heat transfer surfaces. Biocide testing in these model systems showed that methylchloro-methylisothiazolone was effective in controlling microbial growth in biofilms. The efficacy of the isothiazolone biocide was related to the treatment level and the nutrient content of the recirculating water. Biofilm control was monitored usin
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Reports on the topic "Microbial count"

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เฉลิมชัยกิจ, ธงชัย, та ศุภชัย เนื้อนวลสุวรรณ. ประสิทธิภาพของชุดตรวจสอบ Delvotest-PR และ Microbial inhibition disk method ในการตรวจหายาปฏิชีวนะตกค้างในน้ำนมในประเทศไทย : รายงานผลงานวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 1995. https://doi.org/10.58837/chula.res.1995.36.

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การตรวจสอบหายาปฏิชีวนะตกค้างในน้ำนมพร้อมดื่มพาสเจอร์ไรซ์ 323 ตัวอย่าง ยูเอชที 330 ตัวอย่าง น้ำนมดิบจากถังนมรวมของเกษตรกร 515 ตัวอย่าง จากโคนมปกติ 200 ตัวอย่าง และจากโคนมที่มีอาการเต้านมอักเสบก่อนให้การรักษา 50 ตัวอย่าง โดยวิธี Microbial inhibition disk method และใช้ชุด ตรวจสอบ Delvotest-P[superscript R] พบว่าอัตราการให้ผลบวกลดลง 42: 1-100% หลังจากการอุ่นตัวอย่างน้ำนมที่อุณหภูมิ 80 องศาเซลเซียส นาน 3 นาที ก่อนทำการตรวจสอบแสดงว่าผลบวกเท็จที่เกิดขึ้นน่าจะมีสาเหตุจากสารยับยั้งการแบ่งตัวของแบคทีเรียตามธรรมชาติในน้ำนม (Natural inhibitors) เช่น Lysozyme และ Lactoferrin เป็นต้น โดยที่สารเหล่านี้ไม่สาม
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Siripatrawan, Ubonratana. Active Chitosan-Based Film with Antimicrobial Property for Food Packaging Application. Chulalongkorn University, 2010. https://doi.org/10.58837/chula.res.2010.22.

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This research was aimed to develop an active film from chitosan film incorporated with green tea extract to enhance antioxidant and antimicrobial properties in order to be used for food shelf life extension. The experiments were divided into 3 parts. Firstly, chitosan-based film preparation and modification were determined. The results suggested that the optimum chitosan films could be prepared from 2% chitosan in 1% acetic acid. However, the chitosan film was brittle and had low flexibility. Mechanical property of chitosan film was modified by adding different concentrations of glycerol, as a
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Statistical summary of selected physical, chemical, and microbial characteristics, and estimates of constituent loads in urban stormwater, Maricopa County, Arizona. US Geological Survey, 1995. http://dx.doi.org/10.3133/wri944240.

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