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Biological Journal of Microorganism
ISSN 2322-5173 · University of Isfahan · 369 articles in the index
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Investigating the Bioconversion of Tyrosol to Hydroxyltyrosol by Recombinant Bacillus Subtilis Spores and the Anticancer Effects of Hydroxytyrosol on MCF-7
Introduction: Tyrosol (2-(4-Hydroxyphenyl) ethanol) is one of the natural phenolic compounds in olive which has antioxidant and anticancer effects. During the olive oil mill process, a lot of the phenolic compounds are released into the water which can contaminate the environment.However, these can…
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Investigating Green Synthesis of Copper Nanoparticles using the Bacterium Pseudomonas Grimontii, their Characterization, and Antibacterial Activity
Introduction: Copper nanoparticles (CuNPs) are used in various industries, including pharmaceutical and biomedical sciences, agricultural and food chemistry, electronics and environmental applications, due to their novel optical, chemical, photoelectrochemical, and electronic properties as well as…
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A Study on the Production of Clavulanic Acid by Streptomyces clavuligerus using Carbon Resources such as Glucose, Glycerol, and Wheat Bran
Introduction: Clavulanic acid is the first B-Lactamase inhibitor that has been used clinically since 1981. This inhibitor is the natural product of the fermentation of Streptomyces clavuligerus and is useful for protecting B-lactams against lots of important B-lactamases such as Group A…
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Effects of Different Strain Immobilization Methods on Protease Production of Aeromonas Hydrophila MSB16
Introduction: Microbial strain immobilization has some benefits like the repeatability and cost-effectiveness of strain recovery in the fermentation process. The present study aimed to investigate the effects of Aeromonas hydrophila MSB16 immobilization on its protease production.Materials and…
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Isolation and Identification of Antibiotic Producing Actinobacteria from the Coast of the Persian Gulf
Introduction: Actinomycetes are filamentous and gram-positive bacteria living as free-living, saprophyte, and sometimes in symbiosis with plants. These bacteria could be isolated from all ecosystems including soil, water, marine sediments and especially hot waters. Marine actinobacteria are known…
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Identification and Enhanced Production of L-Asparaginase Enzyme Using A Soil-Isolated Fungal Strain: Sarocladium kiliense IBRC-M 30453
Introduction: L-asparaginase is a significant anticancer enzyme used both in medicine and food industries. Considering the importance of L-asparaginase in different industries, finding new sources of producer strains that can produce higher levels of this enzyme with minimum side effects is…
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Synthesis of Gold Nanoparticles Using Exopolysaccharide from Lactobacillus Paracasei and Evaluation of their Antibacterial, Anti-biofilm, and Antioxidant Properties
Introduction: Although there are different methods for the production of nanoparticles, today the synthesis of nanoparticles with biological methods has attracted the attention of researchers because it is an easy, environmentally friendly, and cost-effective method. The present study investigates…
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Investigating the Extracellular Synthesis of Magnetic Nanoparticles by an Endophytic Bacterium Bacillus sp. Strain BR06 under the Cell-free Extract Strategy
Introduction: Magnetic nanoparticles have various biomedical applications such as cell therapy, tissue repair, drug delivery, and magnetic resonance imaging (MRI) due to their unique physical, chemical, thermal, and mechanical characteristics as well as their suitable surface properties. The…
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Production of Recombinant Polyepitopic HPV16-E6 Antigen: the Effects of various Strains and Expression Conditions
Introduction: Cervical cancer is the leading cause of morbidity and cancer mortality in women throughout the world and persistent infection with human papillomavirus (HPV) is the main etiology for the development of this cancer. Peptide vaccines derived from E6 and E7 oncogenes are promising…
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Improving Ethanol Tolerance in Industrial Yeast Strain by a Combination of Mutation and Evolutionary Engineering
AbstractIntroduction: Tolerance to ethanol is a key characteristic of the yeast Saccharomyces cerevisiae. Any increase in ethanol tolerance in the industrial strains could lead to faster and more complete fermentations, and may also allow the production of more alcohol. Due to the complex nature of…
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Investigating the Antimicrobial Effects of Amniotic Membrane, Arnebia Euchroma, Sesame Oil, and Bee Wax on Gram-positive and Gram-negative Bacteria in Second-degree Burn Wounds
Some tissues of the body such as the amniotic membrane and cheap and available medicinal plants such as Arnebia euchroma can be effective in treating burn wounds, reducing its infection, and healing time. The aim of the present study was to investigate the antimicrobial effects of a combination of…
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Screening and Molecular Identification of Tyrosinase-producing Actinobacteria from Soils of the Maranjab Desert, the Hampoeil Cave, and the Hormoz Island
Introduction: Tyrosine oxidizing enzymes or tyrosinases have various applications in medicine, nutritional, and environmental disciplines. By considering actinobacteria’s impacts as one of the most promising bacteria in producing bioactive compounds and valuable enzymes with medical, industrial…
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Production of Bio-hydrogen by Microorganisms and Extracellular Enzymes: Clean Energy
AbstractIntroduction: Hydrogen gas has great potential as a renewable energy source. Although hydrogen gas is obtained from fossil fuels, there is a demand for its production by chemical methods and electrolysis of water, and its extraction from oil sands is currently being studied. Its biological…
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Lignocellulosic Biomass: Renewable Sources for Bioethanol Production
Introduction: Fossil fuels are the main sources of water, soil, and air pollution that threaten human life and other organisms on Earth. Nowadays, the climate change and pollution are critical issues; however, many countries still use polluting fossil fuels. Therefore, finding alternative and clean…
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Identification of Population Structure of Two Fungal Endophytes Fusarium sp. and Thielavia sp. and their Spatial-Temporal Abundance in Different Tissues of Six Species of Halophyte Plants
Introduction: All plants in natural ecosystems seem to symbiose with fungal endophytes. This highly diverse group of fungi can have profound effects on plant communities by helping to tolerate abiotic and biological stresses, increasing biomass, and reducing water consumption or changing resource…
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Lead Biosorption and Biosynthesis of Lead Nanoparticles by Bacillus Tropicus Isolated from Soils Containing Electronic Wastes in Isfahan
Introduction: Electronic wastes are the remnants of electronic devices buried in the soil without processing and contain toxic substances such as heavy metals. Lead is one of the heavy metals in many electronic goods that, if not properly processed, can cause toxicity in the soil and may harm…
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The Role of EPS-producing Cyanobacteria in Desert Soils
Introduction: Biological soil crusts including cyanobacteria, fungi, bacteria, actinomycetes, algae, viruses, mosses, lichens, and plants are formed on the soil surface. Cyanobacteria are key microorganisms in the formation of the biological soil crust, especially in arid and desert areas…
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Biological Removal of Mercury and Cadmium by Iron Oxidizing Bacteria Isolated from Aqueous Media
Introduction: Due to the increasing trend of industrial development and also the industrial production, the presence of heavy metals along with industrial wastewater is undeniable. Despite the various ways to remove heavy metals, choosing biological methods can be the best way to control them…
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Investigating Mercury Interactions of Rhodotorula Toruloides IR-1395 for Mercury Bioremediation Processes in Aquatic Environments
Introduction: Nowadays, heavy metals pollution is one of the most important environmental problems. Due to the high cost of common refining methods, the use of microbial biomass is recommended to clean up heavy metals. The aim of this study was the evaluation of interactions of Rhodoterula…
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Evaluating the Relative Frequency of Fungal Infections in the Serum of Patients with Multiple Sclerosis and Healthy Subjects Using PCR
Introduction: Various genetic and environmental factors are associated with multiple sclerosis (MS) and its progression. Environmental factors include infectious agents especially fungi. The immunological basis of MS and the effects of fungal infections on the immune system led us to compare the…