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Journal articles on the topic 'Non-pathogenic microorganisms'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Pigłowski, Marcin. "Pathogenic and Non-Pathogenic Microorganisms in the Rapid Alert System for Food and Feed." International Journal of Environmental Research and Public Health 16, no. 3 (2019): 477. http://dx.doi.org/10.3390/ijerph16030477.

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The most frequently notified pathogenic microorganisms in the RASFF in 1980–2017 were Salmonella sp., Listeria, Escherichia and Vibrio, whereas, among the notified non-pathogenic microorganisms were unspecified microorganisms, Enterobacteriaceae, Salmonella sp. and Coliforms. Microorganisms were reported mainly in poultry meat, meat, fish, molluscs, crustaceans, fruits, vegetables, herbs, spices, nuts, milk, cereals (in food) and in feed materials and pet food (in feed). The number of notifications decreased at the turn of 2005 and 2006, but has steadily increased since then. The notification

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2

Napalkova, G. M., I. I. Korsakova, N. P. Khrapova, N. N. Piven', L. V. Lomova, and T. V. Bulatova. "Differentiation of Pathogenic and Non-Pathogenic Burkholderias Using Rocket Immunoelectrophoresis." Problems of Particularly Dangerous Infections, no. 4(106) (August 20, 2010): 37–38. http://dx.doi.org/10.21055/0370-1069-2010-4(106)-37-38.

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Demostrated is the possibility to differentiate virulent strains of melioidosis and glanders etiological agents from avirulent ones and closely related microorganisms according to the presence of the antigenic complex 8, using rocket immunoelectrophoresis with the serum containing antibodies to this complex.

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Martusevich, Andrew, Ivan Bocharin, Maxim Guryanov, Alexey Kochkurov, Elena Kochkurova, and Marina Ivashchenko. "EXPERIMENTAL STUDY OF THE PHENOMENON OF MICROORGANISM-ASSOCIATED CRYSTALLOGENESIS." Archiv Euromedica 11, no. 3 (2021): 20–21. http://dx.doi.org/10.35630/2199-885x/2021/11/3/5.

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The aim of the study was to clarify the character of the initiatory activity of pathogenic and nonpathogenic microorganisms in regard to salt solutions. We selected colonies of two microorganisms: Escherichia coli (E. coli) and Staphylococcus aureus (St. aureus) [106 , 108 , 1010, 1012, 1014, 1016, 1018 and 1020 CFU/ml of solution]. A 10% solution of sodium chloride was used as the initiated substance, which made it possible to perform a tezigraphic test. On the basis of model experiments with colonies of some pathogenic and non-pathogenic microorganisms, a new phenomenon was confirmed — micro

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Macpherson, Andrew J., Lukas Hunziker, Kathy McCoy, and Alain Lamarre. "IgA responses in the intestinal mucosa against pathogenic and non-pathogenic microorganisms." Microbes and Infection 3, no. 12 (2001): 1021–35. http://dx.doi.org/10.1016/s1286-4579(01)01460-5.

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Mistry, Richa, and Gaurav Shah. "Study of Inhibitory Effect of Honey on Various Pathogenic and Non-Pathogenic Microorganisms." International Journal of Applied Sciences and Biotechnology 1, no. 4 (2013): 279–81. http://dx.doi.org/10.3126/ijasbt.v1i4.9179.

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Honey is a sweet food made by bees using nectar from flowers. The variety produced by honey bees (the genus Apis). The purpose of the present study was to determine in vitro antibacterial activities of different honey against various pathogenic and non-pathogenic organisms. Antibacterial activity of honey was determine by using well diffusion method in which different concentrations (20, 40, 60, 80, & 100 % v/v) of honey were used against various test pathogen. These organisms also tested against artificial honey for study of effect of sugar on its antibacterial activity. The results of th

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Lee, Jae Won, Ye-Gi Lee, Yong-Su Jin, and Christopher V. Rao. "Metabolic engineering of non-pathogenic microorganisms for 2,3-butanediol production." Applied Microbiology and Biotechnology 105, no. 14-15 (2021): 5751–67. http://dx.doi.org/10.1007/s00253-021-11436-2.

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Sirbu, Т. F., S. N. Maslobrod, A. Y. Shibaev, I. I. Shibaeva, and A. S. Sidorenko. "Effect of a Weak Magnetic Field on Non-Pathogenic Microorganisms." Elektronnaya Obrabotka Materialov 54(4) (August 15, 2018): 45–51. https://doi.org/10.5281/zenodo.1345702.

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A specific effect of a weak alternating magnetic field (WAMF) with a frequency of 1–10 Hz, an intensity of 40–50 μT and an exposure of 20, 40 and 60 min on 3 strains of fungi of the genus <em>Penicillium </em>(<em>P. funicullosum</em> <em>CNMN FD 11</em>, <em>P. piceum</em> <em>CNMN FD 21</em>, <em>P. verrucosum</em> <em>CNMN FD 19</em>) was revealed, with the 3 strains exhibiting distinctly antimicrobial activity towards phytopathogens. WAMF has a positive effect on the catalase activity and biomass growth of <em>P. piceum</em> <em>C

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8

Svetlana, Zamana. "Efficacy of Application of Biostimulants Based on Non-pathogenic Microorganisms when Growing Okra in Arkansas." Journal of Biomedical Research & Environmental Sciences 2, no. 4 (2021): 218–22. https://doi.org/10.37871/jbres1215.

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The results of the experiment on the cultivation of okra vegetable crops in a farm in Osceola, Arkansas, USA using innovative biostimulants based on non-pathogenic microorganisms are presented. It is shown that the use of biostimulants contributed to a significant improvement in the morphological characteristics of plants, such as plant height, the number of side branches, leaves, fruits. In the green fruits of okra, the content of vital elements-nitrogen, sulfur, potassium, and especially iron, zinc, copper, magnesium and phosphorus-increased compared with the control variant, while the conte

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Bocatti, Camila Rafaeli, Eduara Ferreira, Renan Augusto Ribeiro, et al. "Microbiological quality analysis of inoculants based on Bradyrhizobium spp. and Azospirillum brasilense produced “on farm” reveals high contamination with non-target microorganisms." Brazilian Journal of Microbiology 53, no. 1 (2022): 267–80. http://dx.doi.org/10.1007/s42770-021-00649-2.

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Abstract The use of inoculants carrying diazotrophic and other plant growth–promoting bacteria plays an essential role in the Brazilian agriculture, with a growing use of microorganism-based bioproducts. However, in the last few years, some farmers have multiplied microorganisms in the farm, known as “on farm” production, including inoculants of Bradyrhizobium spp. for soybean (Glycine max L. Merrill.) and Azospirillum brasilense for corn (Zea mays L.) or co-inoculation in soybean. The objective was to assess the microbiological quality of such inoculants concerning the target microorganisms a

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10

Horincar, Georgiana, Ioana Otilia Ghinea, Bianca Furdui, Andreea Veronica Dediu, Gabriela Bahrim, and Rodica Mihaela Dinica. "Evaluation of the biologic activity of some quaternary ammonium salts against non-pathogenic and pathogenic microorganisms." Journal of Biotechnology 208 (August 2015): S104. http://dx.doi.org/10.1016/j.jbiotec.2015.06.326.

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11

Journal, Baghdad Science. "Effect of Lactobacillus salivarius supernatant against growth and biofilm formation of some pathogenic microorganisms." Baghdad Science Journal 13, no. 2 (2016): 247–52. http://dx.doi.org/10.21123/bsj.13.2.247-252.

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The Inhbititory effect of cocentrated and non-cocentrated supernatant of the probiotic Lactobacillus salivarius against growth of some potential pathogenic microorganisms which included Pseudomonas eruginosa, Klebsiella spp, Escherichia coli and Candida albicans. The results were diffusion assay revealed that concentrated and non-concentrated supernatant had inhitory effect against pathogenic bacteria with inhibition zone renged between 13-17mm while inhibition effect of concentrated supernatant against C.albicans was inhibition zone 8mm. On the other hand, the effect of these suprnatant again

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Adewoyin, Mary A., and Anthony I. Okoh. "The natural environment as a reservoir of pathogenic and non-pathogenic Acinetobacter species." Reviews on Environmental Health 33, no. 3 (2018): 265–72. http://dx.doi.org/10.1515/reveh-2017-0034.

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AbstractAcinetobacteris a genus of Gram-negative bacteria, which are oxidase-negative, exhibiting a twitching motility under a magnifying lens. Besides being important soil microorganisms, due to their contribution to the soil fertility,Acinetobacterspecies, particularlyA. baumannii, hold a prominent place within the genus because, it is the most virulent among the other species, causing varying degrees of human infections in clinical environments. However, results of different research have shown thatAcinetobacterspecies can be isolated from such natural environments as surface water, wastewa

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Yumoto, Hiromichi, Katsuhiko Hirota, Kouji Hirao, et al. "The Pathogenic Factors from Oral Streptococci for Systemic Diseases." International Journal of Molecular Sciences 20, no. 18 (2019): 4571. http://dx.doi.org/10.3390/ijms20184571.

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The oral cavity is suggested as the reservoir of bacterial infection, and the oral and pharyngeal biofilms formed by oral bacterial flora, which is comprised of over 700 microbial species, have been found to be associated with systemic conditions. Almost all oral microorganisms are non-pathogenic opportunistic commensals to maintain oral health condition and defend against pathogenic microorganisms. However, oral Streptococci, the first microorganisms to colonize oral surfaces and the dominant microorganisms in the human mouth, has recently gained attention as the pathogens of various systemic

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14

Azhari, Azhari, Wahyu Eka Sari, Teuku Reza Ferasyi, et al. "Screening of Pathogenic and Non-Pathogenic Bacteria Isolated from Maggot Digestive System." International Journal of Tropical Veterinary and Biomedical Research 9, no. 2 (2025): 42–46. https://doi.org/10.21157/ijtvbr.v9i2.44058.

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Maggots are one of the fly larvae with a high protein content of up to 30-45%, so maggots can be used as an alternative animal feed ingredient. As one of the sources of animal feed raw materials, insects-based feed must also be safe from contaminants of microorganisms, including pathogenic bacteria. Therefore, this study aims to isolate and determine the screening of pathogenic and non-pathogenic bacteria from maggots' digestive systems. Maggots are cultivated on media based on animal faecal and organic waste for ± 2 months. Then, the bacteria are isolated and purified using nutrient agar medi

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Baibhav, R. Barbaruah, Longkumer Temjennula, Puzari Jyotishman, and Tham Badarica. "Isolation and Biochemical Identification of Soil Bacteria from North Eastern Hill University, Shillong." International Journal of Innovative Science and Research Technology 7, no. 7 (2022): 180–84. https://doi.org/10.5281/zenodo.7016299.

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One of the richest habitats for microorganisms is soil due to its complex composition and availability of nutrients which has allowed for the greatest microbial diversity. This diversity is a blessing and a curse, as along with beneficial and non pathogenic microorganisms, it is also a hub for pathogenic microbes to thrive. In this diverse microflora, a plethora of microorganisms are yet to be discovered and understood. Due to the ever-changing climate conditions, global warming, pollution, erosion etc, there may be change in the microbial diversity in soil of a particular area and may lead to

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16

Zamana, S., A. Sokolov, T. Fedorovskiy, S. Sokolov, and T. Kondratyeva. "Efficacy of Application of Biostimulants Based on Non-pathogenic Microorganisms when Growing Okra in Arkansas." Journal of Biomedical Research & Environmental Sciences 2, no. 4 (2021): 218–22. http://dx.doi.org/10.37871/jbres1215.

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The results of the experiment on the cultivation of okra vegetable crops in a farm in Osceola, Arkansas, USA using innovative biostimulants based on non-pathogenic microorganisms are presented. It is shown that the use of biostimulants contributed to a significant improvement in the morphological characteristics of plants, such as plant height, the number of side branches, leaves, fruits. In the green fruits of okra, the content of vital elements-nitrogen, sulfur, potassium, and especially iron, zinc, copper, magnesium and phosphorus-increased compared with the control variant, while the conte

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17

Elgohary, Elzahraa A., Yasser Mahmoud A. Mohamed, Hossam A. El Nazer, et al. "A Review of the Use of Semiconductors as Catalysts in the Photocatalytic Inactivation of Microorganisms." Catalysts 11, no. 12 (2021): 1498. http://dx.doi.org/10.3390/catal11121498.

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Obtaining clean and high-quality water free of pathogenic microorganisms is a worldwide challenge. Various techniques have been investigated for achieving an effective removal or inactivation of these pathogenic microorganisms. One of those promising techniques is photocatalysis. In recent years, photocatalytic processes used semiconductors as photocatalysts. They were widely studied as a green and safe technology for water disinfection due to their high efficiency, being non-toxic and inexpensive, and their ability to disinfect a wide range of microorganisms under UV or visible light. In this

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18

Liegenfeld, Sophie Charlotte, Svenja Stenzel, Julian-Dario Rembe, Mandy Dittmer, Paulo Ramos, and Ewa Klara Stuermer. "Pathogenic and Non-Pathogenic Microbes in the Wound Microbiome—How to Flip the Switch." Microbiology Research 16, no. 2 (2025): 39. https://doi.org/10.3390/microbiolres16020039.

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The wound microbiome refers to the specific community of microbes, including bacteria, fungi, and other microorganisms, that are present in and around a wound. This microbiome plays a crucial role in wound healing, as it includes both healing-promoting and pathogenic microbes. The balance between these microbes significantly influences the healing process; a balanced microbial colonization can support wound healing and prevent infections, while an overgrowth of pathogenic microbes can lead to delayed healing processes and complications. The composition of the wound microbiome can vary dependin

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Dewi Yana, Agung Dwi Wahyu Widodo, and Pepy Dwi Endraswari. "Comparison between the time to detection of pathogenic and nonpathogenic microorganisms from blood culture specimens using the BACTECTM FX machine to determine the optimal incubation time." Bali Medical Journal 12, no. 1 (2023): 909–15. http://dx.doi.org/10.15562/bmj.v12i1.4199.

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Introduction: Bloodstream infections can lead to a high rate of life-threatening sepsis, morbidity and mortality, requiring early and accurate detection. The gold standard for diagnosing bacteremia is blood culture. The recommended incubation time of blood cultures is five days minimum, but studies have shown that five-day incubation is unnecessary. This study aims to determine the optimal blood incubation time on the BACTECTM FX machine. Methods: This is an analytic observational study with a cross-sectional retrospective approach. The samples resulted from tests in the Clinical Microbiology

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Malcheva, Boyka Z., Petar G. Petrov, and Veneta V. Stefanova. "Microbiological Control in Decontamination of Sludge from Wastewater Treatment Plant." Processes 10, no. 2 (2022): 406. http://dx.doi.org/10.3390/pr10020406.

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Dynamics of the microbiological indicators of fresh sludge from wastewater treatment plants with a concentration of CaO, 10% and 20%, and ash, −30% and 50%, and treated with quicklime, ash, and microbial fertilizer for a 50-day period of composting were studied. The influence of temperature, water content, and oxygen on the development of microbes was established in laboratory conditions. Microbiological analysis included the determination of non-pathogenic (non-spore-forming bacteria, bacilli, actinomycetes, micromycetes, bacteria digesting mineral nitrogen), and pathogenic (Salmonella, Liste

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Korolik, Victor V., Natalia I. Sheina, Lyubov I. Mjalina, Lyubov P. Sazonova, and Elena D. Drugova. "Primary sanitary and hygienic assessment of microorganisms used in biotechnology." Hygiene and sanitation 102, no. 2 (2023): 135–40. http://dx.doi.org/10.47470/0016-9900-2023-102-2-135-140.

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Introduction. The use of microorganisms in biotechnological enterprises, agriculture, and forestry can be accompanied by microbial contamination of the environment and have an adverse effect on the human health.  The purpose of the research is to develop and put into practice quantitative criteria for the pathogenicity of biotechnological microorganisms as the first stage in assessing their safety. Materials and methods. Lethal dose (LD50) and “threshold” (Limbact) doses, dissemination in internal organs, toxigenicity, and “pathogenicity enzymes” of thirty-three strains of saprophy

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Stepanenko, Irina S., Semen A. Yamashkin, Yuliya A. Kostina, Alyona A. Batarsheva, and Mikhail A. Mironov. "A new group of compounds derived from 4-, 5-, 6- and 7-aminoindoles with antimicrobial activity." Research Results in Pharmacology 4, no. (3) (2018): 17–26. https://doi.org/10.3897/rrpharmacology.4.29905.

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Introduction. The problem of antibiotic resistance of microorganisms is becoming more urgent in the twenty-first century. Microorganisms possess an evolutionary adaptive capacity. Non-adherence to the basic principles of rational antibiotic therapy leads to menacing consequences. More and more pathogenic microbes are becoming resistant to two or more antibiotics. The search for new compounds with antimicrobial activity is one of the principles for overcoming the antibiotic resistance of microorganisms. Materials and methods. Eighteen test-strains of microorganisms and more than 2000 clinical s

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Armon, R., J. Starosvetzky, T. Arbel, and M. Green. "Survival of legionella pneumophila and salmonella typhimurium in biofilm systems." Water Science and Technology 35, no. 11-12 (1997): 293–300. http://dx.doi.org/10.2166/wst.1997.0749.

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Biofilms are found in many water supply systems where they form an environment in which different bacteria can be entrapped for long periods. Besides the aesthetic aspect, biofilm has a major contribution in biocorrosion, disinfection inefficiency and possibly may act as a reservoir for pathogenic and non-pathogenic microorganisms. In the present study, two pathogenic bacteria Legionella pneumophila and Salmonella typhimurium WG-49 were introduced into a biofilm simulation flow system supplied with sterile and non-sterile tap water. The survival of these microorganisms into the biofilm formed

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Ермаков and Vlyadimir Ermakov. "CHINCHILLA MICROBIOCENOSIS AT NONINFECTIOUS PATHOLOGY OF THE GASTROINTESTINAL TRACT IN THE CONDITIONS OF SAMARA." Bulletin Samara State Agricultural Academy 1, no. 1 (2016): 9–14. http://dx.doi.org/10.12737/18296.

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The purpose of research is the resistance increasing of the chinchillas organism to the representatives of pathogenic and conditionally-pathogenic microbes with non-infectious pathology for the gastrointestinal tract. Based on the purpose of the study, were as follows – extruding and identification chinchillas contained family transient and resident representatives microbiocenosis; by morphological, tincrial, cultural, biochemical and serological properties of these microbes. The experimental group, chinchillas with non-communicable disorders of the gastrointestinal tract (gastroenteritis and

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Whitehead, Kelly, Jake Eppinger, Vanita Srinivasan, M. Khalid Ijaz, Raymond W. Nims, and Julie McKinney. "Potential for Microbial Cross Contamination of Laundry from Public Washing Machines." Microbiology Research 13, no. 4 (2022): 995–1006. http://dx.doi.org/10.3390/microbiolres13040072.

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Although clothes washing machines remove dirt, microorganisms are not reliably removed by modern cold-water machine-washing practices. Microbial bioburden on clothing originates from the wearer’s skin, the environment (indoor and outdoor), and the washing machine itself. While most clothing microbes are commensals, microbes causing odors and opportunistic pathogens may also be present. Understanding the extent of microbial transfer from washing machines to clothes may inform strategies for odor control and for mitigating the transmission of microbes through the laundering process. This study w

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Albert, John, and Sujtha Elan Seranathan. "Staphylococcus on your Stethoscope?" International Journal of Current Microbiology and Applied Sciences 11, no. 10 (2022): 207–11. http://dx.doi.org/10.20546/ijcmas.2022.1110.025.

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Stethoscope harbours pathogenic microbes which can transmit to patients and health care workers. Disinfection of stethoscope can prevent this transmission and will reduce hospital acquired infections. Aim: To compare the bacterial contamination in personal stethoscope of doctors and ward stethoscopes which are disinfected routinely. Design: Single blinded study Methods and Material: A baseline culture was done on ward and personal stethoscopes. Ward stethoscopes were disinfected daily for four weeks and bacterial culture was done after each week. After four weeks, the bacterial contamination o

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Maliehe, Maphori, Mathope A. Ntoi, Shayanki Lahiri, et al. "Environmental Factors That Contribute to the Maintenance of Cryptococcus neoformans Pathogenesis." Microorganisms 8, no. 2 (2020): 180. http://dx.doi.org/10.3390/microorganisms8020180.

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The ability of microorganisms to colonise and display an intracellular lifestyle within a host body increases their fitness to survive and avoid extinction. This host–pathogen association drives microbial evolution, as such organisms are under selective pressure and can become more pathogenic. Some of these microorganisms can quickly spread through the environment via transmission. The non-transmittable fungal pathogens, such as Cryptococcus, probably return into the environment upon decomposition of the infected host. This review analyses whether re-entry of the pathogen into the environment

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Zavišić, Gordana, Slavica Ristić, Branka Petković, Dragoslava Živkov-Šaponja, Nikola Jojić, and Drina Janković. "Microbiological quality of probiotic products." Arhiv za farmaciju 73, no. 1 (2023): 17–34. http://dx.doi.org/10.5937/arhfarm73-42160.

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Microorganisms used as probiotics should meet elementary safety aspects (non-toxicity, absence of antibiotic resistance genes and translocation) and functional/technological aspects (resistance and survival in the acid gastric environment, adhesiveness, stability, and cell viability). Probiotics with the health claim of being a dietary product or a pharmabiotic (drug category) should be clinically tested, validated, documented, and continuously controlled for quality. Important quality parameters include the identification of declared probiotic strains, the number of viable microorganisms (pro

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Stojanović, Ana. "Bronchial Colonization in Patients with Non–Small Cell Lung Cancer / Kolonizacija bronha kod bolesnika sa nesitnoćelijskim karcinomom pluća." Acta Facultatis Medicae Naissensis 32, no. 2 (2015): 147–54. http://dx.doi.org/10.1515/afmnai-2015-0015.

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SUMMARY Lower airways are sterile, but many researchers have reported the existence of bronchial colonization with pathogenic and non-pathogenic microorganisms in smokers and patients with chronic obstructive pulmonary disease (COPD) and lung cancer. The aim of this study was to determine the existence and type of bronchial colonization in patients with non-small cell lung cancer (NSCLC), as well as to determine whether colonization depends on patient's age, smoking habit, pulmonary function and body mass index (BMI). Another aim was to estimate whether colonization causes early postoperative

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Kula, Natalia, Edyta Mazurkiewicz, and Ewa Obłąk. "Microorganisms and cationic surfactants." Postępy Higieny i Medycyny Doświadczalnej 74 (December 11, 2020): 556–65. http://dx.doi.org/10.5604/01.3001.0014.5776.

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Quaternary ammonium salts (QAS) as cationic surfactants with an amphiphilic structure show biocidal activity against non-pathogenic and pathogenic microorganisms (Gram-positive, Gram-negative bacteria, fungi, as well as lipophilic viruses) occurring in planktonic form or forming biofilms. They can also coat the surface of various materials (glass, metal, silicone, polyester) from which medical devices are made, such as: catheters, implants, heart valves, endoprostheses, and this allows inhibiting the adhesion of microorganisms to these surfaces. In their chemical structure, these surfactants c

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Kuimov, Denis, Maxim Minkin, and Maria Mazanko. "Current state of research on the effect of cavitation on microorganisms and viruses." BIO Web of Conferences 130 (2024): 04015. http://dx.doi.org/10.1051/bioconf/202413004015.

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Cavitation, both hydrodynamic and acoustic, is a promising technology for non-thermal treatment of liquid products in order to inactivate microorganisms and viruses. Aggressive conditions and high energy density per unit volume of the treated substance allows to sterilize liquid products, destroying also pathogenic microorganisms. This paper presents a mini-review of the current state of research in the field of studying the mechanisms of destruction of the cellular structure of microorganisms and viruses. Chemical and physical mechanisms of destruction of the cell structure of microorganisms

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Charitos, Ioannis Alexandros, Salvatore Scacco, Antonella Cotoia, et al. "Intestinal Microbiota Dysbiosis Role and Bacterial Translocation as a Factor for Septic Risk." International Journal of Molecular Sciences 26, no. 5 (2025): 2028. https://doi.org/10.3390/ijms26052028.

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The human immune system is closely linked to microbiota such as a complex symbiotic relationship during the coevolution of vertebrates and microorganisms. The transfer of microorganisms from the mother’s microbiota to the newborn begins before birth during gestation and is considered the initial phase of the intestinal microbiota (IM). The gut is an important site where microorganisms can establish colonies. The IM contains polymicrobial communities, which show complex interactions with diet and host immunity. The tendency towards dysbiosis of the intestinal microbiota is influenced by local b

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Aleksandar, Stoimenov, Popova Teodora, Stoimenov Georgi, and Hristov Kalin. "MICROBIOLOGICAL STATUS OF THE MAMMARY GLAND IN LACTATING SHEEPS." Tradition and Modernity in Veterinary Medicine 7, no. 1 (2022): 10–17. https://doi.org/10.5281/zenodo.6374364.

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The aim of the present study was to determine the microbiological status of the mammary gland in lactating sheeps of the Lacon breed. For this purpose, milk samples from purebred animals, raisеd in sheep farm located in central region of Bulgaria, were collected. The results show that in 46.6% of the tested milk samples from the farm, were not isolated any pathogenic microorganisms. From the positive samples, S. xylosus was most often found, in most cases in combination with the non-pathogenic streptococcus L. lactis ssp. lactis. Only in one of the samples a combination of two staphylococcal s

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Petrukhina, D., S. Gorbatov, O. Tkhorik, et al. "Non-Thermal Plasma Installation as a Pre-Treatment Method of Barley Seeds (Hordeum vulgare L.)." Journal of Physics: Conference Series 2270, no. 1 (2022): 012012. http://dx.doi.org/10.1088/1742-6596/2270/1/012012.

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Abstract Microbial organisms are key pathogens for plants, animals, and humans. The elimination of pathogenic microbes is an essential topic for researchers. Non-thermal atmospheric plasma (NTAP) can potentially inactivate pathogenic microorganisms. This paper draws the results of the biocidal effect study in pre-treatment of barley seeds by NTAP. The effect was observed in 7-day-old seedlings. The results of reducing the total microbial number (by 36.7% after 5 minutes of exposure) were obtained. Thus, treatment with non-thermal plasma can reduce the microbiological contamination of agricultu

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TAMKOVICH, I. A., L. I. SAPUNOVA, and I. G. CHYZH. "SCREENING OF FILAMENTOUS FUNGI SYNTHESIZING INVERTASE." Микробные биотехнологии: фундаментальные и прикладные аспекты 13 (October 21, 2021): 130–43. http://dx.doi.org/10.47612/2226-3136-2021-13-130-143.

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Results of screening invertase-synthesizing filamentous fungi deposited at Belarusian collection of non-pathogenic microorganisms and isolated from various sugar-containing substrates have been presented. Model organisms were selected to study the mechanisms of synthesis and properties of invertase.

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Yılmaz, Dilek Kahraman, Fevziye Işıl Kesbiç, Ekrem Şanver Çelik, Deniz Anıl Odabaşı, Sevdan Yilmaz, and Hany M. R. Abdel-Latif. "Evaluation of the Antimicrobial Effects of Olive Mill Wastewater Extract Against Food Spoiling/Poisoning, Fish-Pathogenic and Non-Pathogenic Microorganisms." Microorganisms 12, no. 11 (2024): 2216. http://dx.doi.org/10.3390/microorganisms12112216.

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Although antibiotics are the main therapy for bacterial infections, the reports showed that the overuse (or misuse) of antibiotics will results in several problems such as the development of antibiotic-resistant strains, persistence of drug residues, and numerous environmental concerns. Therefore, finding antibiotic alternatives is considered of vital importance. Investigation of the antimicrobial properties of several plant substances and extracts is of great value to replace antibiotics. With this objective, this study aimed to evaluate the antimicrobial activities of an ethanolic extract pr

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Krivonogova, Anna, Irina Donnik, Al'bina Isaeva, and Kseniya Moiseeva. "Methodology for compiling a microbial resistance passport for dairy farms." Agrarian Bulletin of the 200, no. 9 (2020): 42–47. http://dx.doi.org/10.32417/1997-4868-2020-200-9-42-47.

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Abstract. The article presents the results of the work, the purpose of which was to create a microbial resistance passport for a dairy farm. Methods. Conducted studies of opportunistic pathogenic microflora in various technological areas, there were taken samples of feed, water, air, bedding, washings from the wool and mucous membranes of cows and calves, washings from surfaces, fences, technological equipment, and livestock care equipment. There were determined the frequency of occurrence and the proportion of microorganisms in the structure of the opportunistic microbiocenosis. Results. It w

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Demirpençe, Hilal, and Devrim Beyaz. "Effect of Gamma Irradiation on the Microbial Load and Quality of Foods." Animal Health Production and Hygiene 14, no. 1 (2025): 31–36. https://doi.org/10.53913/aduveterinary.1597123.

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Foodborne pathogenic microorganisms pose a significant public health issue worldwide, while post-harvest food losses are also considered one of the leading causes of hunger and malnutrition globally. In the food industry, irradiation technology, particularly used as an alternative to thermal processes and regarded as an environmentally friendly method, plays a crucial role in addressing food insecurity and foodborne diseases worldwide. Food irradiation is a non-thermal, technical process in which food is exposed to ionizing or non-ionizing radiation (such as UV, visible light, infrared, radio

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Avduevskayа, N. N. "STAPHYLOCOCCUS AUREUS IS ONE OF THE MAIN PATHOGENS OF MASTITIS OF LACTATING COWS." Problems of Veterinary Sanitation, Hygiene and Ecology 1, no. 2 (2020): 245–49. http://dx.doi.org/10.36871/vet.san.hyg.ecol.202002020.

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As a result of microbiological studies of the udder secretion of lactating cows, conducted in ten livestock farms in the Vologda, Yaroslavl and Kostroma regions, 280 cultures of pathogenic and opportunistic microorganisms, as well as lactic acid and other non-pathogenic flora were isolated from 271 samples of the studied milk. At the same time, it was revealed that S. aureus occupies a leading place in the spectrum of the selected pathogenic microflora. In 2019, the species composition of the pathogenic microflora in the above-listed farms was represented by isolates of Staphylococcus aureus –

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Azimi, Taher, Ahmad Nasser, Aref Shariati, et al. "The Possible Role of Pathogenic and Non-Pathogenic Bacteria in Initiation and Exacerbation of Celiac Disease; A Comprehensive Review." Current Pharmaceutical Biotechnology 21, no. 6 (2020): 452–66. http://dx.doi.org/10.2174/1389201021666191219160729.

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Celiac Disease (CD) is an immune-mediated enteropathy, generally of the proximal intestine, that occurs in genetically susceptible individuals triggered by the ingestion of gluten. The incidence and frequency of CD are increasing, and it is predicted that CD affects approximately 1% of the people worldwide. The common clinical manifestations of CD are divided in two sections, including classic and non-classic symptoms that can be created in childhood and adulthood. The relationship between pathogenic and non-pathogenic bacteria with CD is complex and multidirectional. In previous published stu

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Olender, Alina, Katarzyna Małkińska, Jacek Roliński, Ewelina Grywalska, Elżbieta Pels, and Jacek Tabarkiewicz. "Assessment of Postvaccine Immunity against Streptococcus pneumoniae in Patients with Asplenia, including an Analysis of Its Impact on Bacterial Flora of the Upper Respiratory Tract and Incidence of Infections." Journal of Immunology Research 2018 (December 31, 2018): 1–9. http://dx.doi.org/10.1155/2018/1691347.

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S. pneumoniae is a microorganism that may cause a serious threat in postsplenectomy patients due to a potentially invasive course of infection. In order to assess a protective activity after vaccination with the 23-valent vaccine, we made an analysis of the level of antibodies in patients with asplenia compared to a control group of healthy donors. Additionally, colonization by potentially pathogenic microorganisms of the upper respiratory tract was analyzed to determine the carrier state by strains with vaccine serotype. No such strains were found in the research, yet three non-vaccine-seroty

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Petrillo, Francesco, Danilo Pignataro, Maria Annunziata Lavano, et al. "Current Evidence on the Ocular Surface Microbiota and Related Diseases." Microorganisms 8, no. 7 (2020): 1033. http://dx.doi.org/10.3390/microorganisms8071033.

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The ocular surface microbiota refers to the resident non-pathogenic microorganisms that colonize conjunctiva and cornea. Several studies have shown that ocular surface epithelial cells can respond selectively to specific components of ocular pathogenic bacteria by producing pro-inflammatory cytokines and, in contrast, they do not respond to non-pathogenic bacteria, thus supporting the colonization by a real microbiota. However, the analysis of the ocular microbiome composition is essential for understanding the pathophysiology of various ophthalmic diseases. In this scenario, the first studies

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Naznin, Rezuana, Nasrin Sultana, Md Nur Hossain, et al. "Conventional and Molecular Identification of Culturable Airborne Bacteria." Plant Tissue Culture and Biotechnology 30, no. 1 (2020): 15–25. http://dx.doi.org/10.3329/ptcb.v30i1.47787.

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Bacteria isolated from the environment during the present study were representative of normal microflora of the skin, respiratory and urinary tracts; it also includes some soil and water-borne pathogenic and nonpathogenic genera. Six samples from different locations were studied for bacterial investigation. Among 14 isolates obtained, 13 were Gram positive, and the rest one was Gram negative. Out of 13 Gram positive isolates, 12 were round-shaped non spore forming and were identified as Planococcus citreus, Stomatococcus mucilaginosus, Kocuria kristinae, Micrococcus agilis (2), Kytococcus sede

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Huete, Samuel G., and Nadia Benaroudj. "The Arsenal of Leptospira Species against Oxidants." Antioxidants 12, no. 6 (2023): 1273. http://dx.doi.org/10.3390/antiox12061273.

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Reactive oxygen species (ROS) are byproducts of oxygen metabolism produced by virtually all organisms living in an oxic environment. ROS are also produced by phagocytic cells in response to microorganism invasion. These highly reactive molecules can damage cellular constituents (proteins, DNA, and lipids) and exhibit antimicrobial activities when present in sufficient amount. Consequently, microorganisms have evolved defense mechanisms to counteract ROS-induced oxidative damage. Leptospira are diderm bacteria form the Spirochaetes phylum. This genus is diverse, encompassing both free-living no

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Yashin, Anatoliy, Elizabeth Kasatkina, Aleksey Prusakov, Vladimir Ponamarev, and Alexander Lunegov. "The T-RFLP research method in the study of rumen microbiota in dairy cows with subclinical ketosis." BIO Web of Conferences 66 (2023): 06001. http://dx.doi.org/10.1051/bioconf/20236606001.

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The article presents the results of researches related to the study of the possibility of using the modern molecular genetics method -T-RFLP-analysis (terminal restriction fragment length polymorphism) to identify the community of microorganisms in the contents of the rumen in clinically healthy highly productive cows and cows with subclinical ketosis. The research methodology is based on the analysis of the conservative regions in the microorganisms’ genome variability. The results showed the high efficiency of the method used for the identification of microorganisms in the rumen contents in

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Yao, Zhifeng, Hong Shen, Minna Tang, and Junbo Ge. "Correlation Analysis of CPN, Hp, HCMV Pathogenic Microorganism Infection Status and Serum Inflammation Marker Level in Patients with Coronary Heart Disease." Tobacco Regulatory Science 7, no. 5 (2021): 3251–55. http://dx.doi.org/10.18001/trs.7.5.1.99.

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Objective: To investigate the correlation between CPN, Hp, HCMV pathogenic microorganism infection status and serum inflammation marker levels in patients with coronary heart disease. Methods: The subjects of this study were all patients with coronary heart disease who came to our hospital from December 2018 to December 2019. A total of 70 patients were selected as the observation group, and non-coronary heart disease patients who came to our hospital for physical examination at the same time 70 cases were used as a control group to detect the IgG antibodies of CPN, Hp and HCMV microorganisms

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Stone, BA. "Cell Walls in Plant-Microorganism Associations." Functional Plant Biology 16, no. 1 (1989): 5. http://dx.doi.org/10.1071/pp9890005.

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In this review the surface structures of plants and microorganisms are briefly compared, the role of plant walls in recognition and communication events in pathogenesis and the changes occurring in walls as part of the plant's defence mechanisms are considered. Pathogenesis-related proteins with hydrolytic action on pathogen walls and the callose response are briefly discussed. Finally, wall-related phenomena in non-pathogenic associations between plants and microbial symbionts, exemplified by Rhizobium-root hair and mycorrhizal fungus-root associations are described.

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NARMURATOVA, M. Kh, Z. U. USMANOVA, E. M. GHAFOORI, А. Zh АSKAR, А. М. ZHUNISBEK та Zh B. NARMURATOVA. "СҮТ БЕЛОГЫ ПЕПТИДТЕРІНІҢ АНТИМИКРОБТЫҚ БЕЛСЕНДІЛІГІ". МИКРОБИОЛОГИЯ ЖӘНЕ ВИРУСОЛОГИЯ, № 2(45) (19 червня 2024): 39–51. http://dx.doi.org/10.53729/mv-as.2024.02.03.

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This article describes the antimicrobial activity of milk proteins and peptides formed from them. Today, the global problem of modern medicine and the entire humanity is the resistance of pathogenic microorganisms to antibiotics. Widespread and uncontrolled use of antimicrobial drugs, as well as non-compliance with treatment regimens, contributes to the proliferation of this phenomenon. The emergence of antibiotic-resistant types of pathogenic microorganisms, which contribute to the development of incurable and fatal diseases, is especially dangerous. In this regard, the search and development

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MUSGROVE, MICHAEL T., MARK A. HARRISON, HAROLD M. BARHNART, ROMEO T. TOLEDO, and RONALD R. EITENMILLER. "Microbiological Examination of Pasteurized, Deaerated Human Milk." Journal of Food Protection 52, no. 8 (1989): 552–59. http://dx.doi.org/10.4315/0362-028x-52.8.552.

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Three composites of human milk samples were subjected to different processing conditions: (1) deaerated, vacuum packaged in metalized polyester bags and pasteurized at 56°C for 8 min; (2) vacuum packaged and pasteurized; (3) vacuum packaged. On days 0, 4, 7, 14, 28, 64, and 96 of storage, each treatment was analyzed for dissolved oxygen content and viable microflora. On days 0, 4, and 14, randomly selected isolates from each treatment were identified to the species level. Heat treatment of the milk samples reduced the number of viable microorganisms and resulted in a shift in the type of bacte

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Acharjee, Mrityunjoy, Estiak Ahmed, Saurab Kishore Munshi та Rashed Noor. "Validation of γ-irradiation in controlling microorganisms in fish". Nutrition & Food Science 44, № 3 (2014): 258–66. http://dx.doi.org/10.1108/nfs-07-2013-0089.

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Purpose – With a previous throughput of sea fish contamination with microorganisms, the present study extended the array of such spoilage over four other fish samples including Pseudapocryptes elongates, Scomberomorus cavalla, Xenentodon cancila and Otolithoides pama, evaluated the reductive impact of irradiation, and further validated the irradiation methodology in controlling the microbial quality of the sea fish samples. The paper aims to discuss these issues. Design/methodology/approach – Twelve samples of each sea fish were collected from super shops in Dhaka city and a portion of each sa

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