Antibacterial antibiotics
... on the other. Second, an antibiotic should be chemically stable enough to be isolated, processed, and stored for a reasonable length of time without deterioration of potency. The amenability of an antibiotic for oral or parenteral administration to be converted into suitable dosage forms to provide ...
... on the other. Second, an antibiotic should be chemically stable enough to be isolated, processed, and stored for a reasonable length of time without deterioration of potency. The amenability of an antibiotic for oral or parenteral administration to be converted into suitable dosage forms to provide ...
Review - Wound Infection Institute
... aeruginosa and S aureus and tested the minimal inhibitory concentration (MIC) of a range of antibiotics indicated for each type of bacteria.[30] While the MIC values for the planktonic form of each strain were as expected, the minimal biofilm eradication concentrations (MBECs) were generally 100 to ...
... aeruginosa and S aureus and tested the minimal inhibitory concentration (MIC) of a range of antibiotics indicated for each type of bacteria.[30] While the MIC values for the planktonic form of each strain were as expected, the minimal biofilm eradication concentrations (MBECs) were generally 100 to ...
Methanogenesis in low sulfate hot spring algal-bacterial mats
... temperature limit for mat development which was about 73 C. Samples from various temperature regimes of the mat (44-60 C) all showed increased methane production upon incubation at elevated temperatures (65-70 C) indicating that the reason for maximal methanogenesis occurring below the upper tempera ...
... temperature limit for mat development which was about 73 C. Samples from various temperature regimes of the mat (44-60 C) all showed increased methane production upon incubation at elevated temperatures (65-70 C) indicating that the reason for maximal methanogenesis occurring below the upper tempera ...
Interactions of Foodborne Pathogens with Free‐living Protozoa
... were divided according to Whittaker into the Kingdoms Animalia, Plantae, Fungi, and Protista (Whittaker 1969). The classification of protozoa (“animal-like” protists), photosynthetic organisms other than plants and cyanobacteria (“plant-like” protists or (micro)algae), and slime molds (“fungi-like” ...
... were divided according to Whittaker into the Kingdoms Animalia, Plantae, Fungi, and Protista (Whittaker 1969). The classification of protozoa (“animal-like” protists), photosynthetic organisms other than plants and cyanobacteria (“plant-like” protists or (micro)algae), and slime molds (“fungi-like” ...
ABSTRACT MENG, XIA. pH Elevation by Bacillus
... To further investigate mechanisms of pH elevation and growth of B. licheniformis under acidic conditions, the pH peaks and the role of amino acids discovered from previous study were closely studied by monitoring the pH, cell growth, and catabolism of sugars and amino acids during aerobic and anaer ...
... To further investigate mechanisms of pH elevation and growth of B. licheniformis under acidic conditions, the pH peaks and the role of amino acids discovered from previous study were closely studied by monitoring the pH, cell growth, and catabolism of sugars and amino acids during aerobic and anaer ...
gabriela sinkiewicz lactobacillus reuteri in health and disease
... thousands of years. Elie Metchnikoff introduced the probiotic concept in the early 1900s by stating that “lactic bacilli are good for health” (1). It was at that time known that milk fermented with lactic-acid bacteria inhibits the growth of proteolytic bacteria because of the low pH produced by the ...
... thousands of years. Elie Metchnikoff introduced the probiotic concept in the early 1900s by stating that “lactic bacilli are good for health” (1). It was at that time known that milk fermented with lactic-acid bacteria inhibits the growth of proteolytic bacteria because of the low pH produced by the ...
PZG1 - Alamo Colleges
... will only go into the primary culture for the first quadrant streak. Do not add more culture for each quadrant!) Lift the bottom of the Petri plate containing the agar in your hand, leaving the lid on the bench. Streak quadrant #1 so that the bacteria are evenly spread. Then put the agar plate back ...
... will only go into the primary culture for the first quadrant streak. Do not add more culture for each quadrant!) Lift the bottom of the Petri plate containing the agar in your hand, leaving the lid on the bench. Streak quadrant #1 so that the bacteria are evenly spread. Then put the agar plate back ...
Amoebae in Moisture- Damaged Buildings
... water proofing. The excess moisture can cause damage and facilitate microbial growth in building structures, structural components or on the surfaces of the materials (Haverinen 2002). Different aspects of the exposure linked with moisture damage have been studied, such as microbial diversity and th ...
... water proofing. The excess moisture can cause damage and facilitate microbial growth in building structures, structural components or on the surfaces of the materials (Haverinen 2002). Different aspects of the exposure linked with moisture damage have been studied, such as microbial diversity and th ...
A comparative study of the effectiveness of
... The anti bacterial effectiveness of four non-triclosan containing hand soaps was compared with that of six triclosan containing hand soaps. Dilutions of the soaps were used in the preparation of pour plates which were then streaked with cultures of Escherichia coli, Pseudomonas aeruginosa, Salmonell ...
... The anti bacterial effectiveness of four non-triclosan containing hand soaps was compared with that of six triclosan containing hand soaps. Dilutions of the soaps were used in the preparation of pour plates which were then streaked with cultures of Escherichia coli, Pseudomonas aeruginosa, Salmonell ...
Effects of Biocides on antibiotic resistance
... Bacteria can be killed or inhibited by different antimicrobial products, namely antibiotics that act against infections in humans or animals and biocides such as disinfectants, antiseptics and preservatives. According to the Biocides Directive (98/8/EC), biocidal products are intended to destroy, re ...
... Bacteria can be killed or inhibited by different antimicrobial products, namely antibiotics that act against infections in humans or animals and biocides such as disinfectants, antiseptics and preservatives. According to the Biocides Directive (98/8/EC), biocidal products are intended to destroy, re ...
Lipopolysaccharide: Biosynthetic pathway and structure modification Xiaoyuan Wang , Peter J. Quinn Review
... O-antigen repeats are displayed on the surface of the bacterial cells [2,3]. Lipid A is known to be responsible for the toxic effects of infections with Gram-negative bacteria [4]. The detailed structure of LPS varies from one bacterium to another, and this variation could affect the virulence of th ...
... O-antigen repeats are displayed on the surface of the bacterial cells [2,3]. Lipid A is known to be responsible for the toxic effects of infections with Gram-negative bacteria [4]. The detailed structure of LPS varies from one bacterium to another, and this variation could affect the virulence of th ...
Bacillus qingshengii sp. nov., a rock
... diameter after incubation for 48 h at 30 uC. Strain G19T could grow at 4–45 uC (optimum 30 uC), at pH 4–8 (optimum pH 7.0) and with 0–10 % NaCl (w/v; optimum 1 %). Physiological and biochemical characteristics of strain G19T are summarized in the species description and a comparison of selective cha ...
... diameter after incubation for 48 h at 30 uC. Strain G19T could grow at 4–45 uC (optimum 30 uC), at pH 4–8 (optimum pH 7.0) and with 0–10 % NaCl (w/v; optimum 1 %). Physiological and biochemical characteristics of strain G19T are summarized in the species description and a comparison of selective cha ...
Clayton_umn_0130E_16731
... among other important aspects of host health and behavior. In 2009, the Human Microbiome Project was established with the goal of better understanding the role microbial communities play in health and disease. While the research community has made substantial progress in understanding the role micro ...
... among other important aspects of host health and behavior. In 2009, the Human Microbiome Project was established with the goal of better understanding the role microbial communities play in health and disease. While the research community has made substantial progress in understanding the role micro ...
- Academy Test Bank
... Learning Outcome: 03.06.01 Create a table or concept map that identifies the components of the bacterial cytoplasm and describes their structure, molecular make-up, and functions Section: 03.06 Topic: Microbial World Topic: Prokaryotes ...
... Learning Outcome: 03.06.01 Create a table or concept map that identifies the components of the bacterial cytoplasm and describes their structure, molecular make-up, and functions Section: 03.06 Topic: Microbial World Topic: Prokaryotes ...
Cytoplasmic pH Measurement and Homeostasis in Bacteria
... because low pH minimizes auto-oxidation and maximizes solubility but also because the mid-point potential of the oxygen/water couple is higher at pH 2 than at pH 7. Since the mid-point potential for the ferrous/ferric couple does not change concomitantly, more energy is available from ferrous oxidat ...
... because low pH minimizes auto-oxidation and maximizes solubility but also because the mid-point potential of the oxygen/water couple is higher at pH 2 than at pH 7. Since the mid-point potential for the ferrous/ferric couple does not change concomitantly, more energy is available from ferrous oxidat ...
Biobenefication of Sishen Hematite Iron Ore, using bacterial cultures to
... (Microbiology) is my own work and has not previously been submitted by me in respect of a degree at any other tertiary institution.‖ ...
... (Microbiology) is my own work and has not previously been submitted by me in respect of a degree at any other tertiary institution.‖ ...
Phage Renaissance: New Hope against
... tend to kill bacteria near the water’s surface, and there are plenty more below that quickly take over when treatment stops. In experiments Goel has targeted these problematic filamentous bacteria with phages isolated from sewage. In one study turbid wastewater contaminated with S. natans showed red ...
... tend to kill bacteria near the water’s surface, and there are plenty more below that quickly take over when treatment stops. In experiments Goel has targeted these problematic filamentous bacteria with phages isolated from sewage. In one study turbid wastewater contaminated with S. natans showed red ...
INVASION OF DENTINAL TUBULES BY ORAL BACTERIA
... ABSTRACT: Bacterial invasion of dentinal tubules commonly occurs when dentin is exposed following a breach in the integrity of the overlying enamel or cementum. Bacterial products diffuse through the dentinal tubule toward the pulp and evoke inflammatory changes in the pulpo-dentin complex. These ma ...
... ABSTRACT: Bacterial invasion of dentinal tubules commonly occurs when dentin is exposed following a breach in the integrity of the overlying enamel or cementum. Bacterial products diffuse through the dentinal tubule toward the pulp and evoke inflammatory changes in the pulpo-dentin complex. These ma ...
The Transfer of Defective Lambda Lysogeny between
... lysogenic strains of Escherichia coli, one carrying a defective, the other a healthy but otherwise identical prophage, with the same suspension of the phage mutant lambda-cl and so prepared a pair of doubly lysogenic bacterial strains identical in bacterial i5nd phage genotype, except that one of th ...
... lysogenic strains of Escherichia coli, one carrying a defective, the other a healthy but otherwise identical prophage, with the same suspension of the phage mutant lambda-cl and so prepared a pair of doubly lysogenic bacterial strains identical in bacterial i5nd phage genotype, except that one of th ...
Antimicrobial activity of Ficus sycomorus L.
... moderate anti-bacterial activity against S. aureus, P. aeruginosa and K. pneumonia isolates [7]. Other study stated that the acetone, methanol and ethyl acetate SBE of Ficus spp. showed good antibacterial activity against P. aeruginosa, E. coli, P. vulgaris, B. subtilis, and S. aureus pathogens [8]. ...
... moderate anti-bacterial activity against S. aureus, P. aeruginosa and K. pneumonia isolates [7]. Other study stated that the acetone, methanol and ethyl acetate SBE of Ficus spp. showed good antibacterial activity against P. aeruginosa, E. coli, P. vulgaris, B. subtilis, and S. aureus pathogens [8]. ...
Practical Microbiology
... started in microbiology. “Good old hypotheses” based on strain culture studies got turned around, but new data are not yet adequate to reach satisfactory explanations. It is intriguing to participate in this variegation of microbiological studies by either exploring the diversity, or explaining the ...
... started in microbiology. “Good old hypotheses” based on strain culture studies got turned around, but new data are not yet adequate to reach satisfactory explanations. It is intriguing to participate in this variegation of microbiological studies by either exploring the diversity, or explaining the ...
B.Sc. (H) Microbiology THREE-YEAR FULL-TIME PROGRAMME Choice based credit system (Six-Semester Course)
... courses of their choice, learn at their own pace, take additional courses and acquire more than the required credits, making it an interdisciplinary approach of learning. This new syllabus has been prepared keeping in view the unique requirements of B.Sc. (Hons.) Microbiology students. The contents ...
... courses of their choice, learn at their own pace, take additional courses and acquire more than the required credits, making it an interdisciplinary approach of learning. This new syllabus has been prepared keeping in view the unique requirements of B.Sc. (Hons.) Microbiology students. The contents ...
Morphology, physiology of microorganisms. Virology
... 65. Living, unstained cells and organisms can be observed best using A. fluorescent microscopy B. transmission electron microscopy C. Scan. Electron microscopy D. light microscopy E. *phase contrast microscopy 66. Living, unstained cells and organisms can be observed best using A. fluorescent micros ...
... 65. Living, unstained cells and organisms can be observed best using A. fluorescent microscopy B. transmission electron microscopy C. Scan. Electron microscopy D. light microscopy E. *phase contrast microscopy 66. Living, unstained cells and organisms can be observed best using A. fluorescent micros ...
Morphology, physiology of microorganisms. Virology
... 65. Living, unstained cells and organisms can be observed best using A. fluorescent microscopy B. transmission electron microscopy C. Scan. Electron microscopy D. light microscopy E. *phase contrast microscopy 66. Living, unstained cells and organisms can be observed best using A. fluorescent micros ...
... 65. Living, unstained cells and organisms can be observed best using A. fluorescent microscopy B. transmission electron microscopy C. Scan. Electron microscopy D. light microscopy E. *phase contrast microscopy 66. Living, unstained cells and organisms can be observed best using A. fluorescent micros ...
Plant pathogenic bacteria
... Main properties of plant pathogenic bacteria • Heterotrophic organisms • Facultative parasites (usually can be cultured in pure cultures on artificial media) • Usually contains only single cells • Complex layer of cell wall • Shape: bacillus, coccus, spirillum • Majority Gram negative stained • Aer ...
... Main properties of plant pathogenic bacteria • Heterotrophic organisms • Facultative parasites (usually can be cultured in pure cultures on artificial media) • Usually contains only single cells • Complex layer of cell wall • Shape: bacillus, coccus, spirillum • Majority Gram negative stained • Aer ...
Phospholipid-derived fatty acids
Phospholipid-derived fatty acids (PLFA) are widely used in microbial ecology as chemotaxonomic markers of bacteria and other organisms. Phospholipids are the primary lipids composing cellular membranes. Phospholipids can be saponified, which releases the fatty acids contained in their diglyceride tail. Once the phospholipids of an unknown sample are saponified, the composition of the resulting PLFA can be compared to the PLFA of known organisms to determine the identity of the sample organism. PLFA analysis may be combined with other techniques, such as stable isotope probing to determine which microbes are metabolically active in a sample. PLFA analysis was pioneered by D.C. White, MD, PhD, at the University of Tennessee, in the early to mid 1980s.