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101 articles for “Journal of Virology”
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Decolorization of Diazo Dye Amido Black 10B by a Bacterium Kerstersia sp. Strain VKY1
Abstract: Amido Black 10B, a diazo dye having various industrial applications was decolorized by a bacterium Kerstersia sp. strain VKY1. The effect of various parameters such as dye concentration, pH, temperature and NaCl concentration was investigated. At 200 mg/l dye concentration, the strain decolorized 81% of the dye at temperature 35°C and pH 7.0 in 36 h of incubation. This strain decolorized the dye over a wide range of pH (5–11), …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 3, 2018 · pp. 37–43 Read article
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Screening and Characterisation of Antibacterial Actinomycetes Isolated From Earthworm
Abstract: The actinomycetes are considered to be the most potent source for the production of secondary metabolites, antibiotics and other bioactive compounds. The present study dealt with the isolation of the actinomycetes from the earthworm, Eisenia fetida. The actinomycetes were identified using slide culture technique and various biochemical tests. The isolates (S1 and S2) showed activity against Gram positive and Gram negative bacteria in primary screening by perpendicular streak method. In …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 77–84 Read article
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Characterization of Laccase Enzyme from Dye Degrading Bacterial Strains Isolated from Natural Sources
Abstract: The continuous growth in globalization and industrialization has increased the environmental pollution and one such major contaminant is various types of synthetic dyes. Microbial decolorization and degradation of these dyes through secretion of various extracellular enzymes is gaining importance owing to their eco-friendly nature. One such enzyme is laccase, a multicopper oxidase enzyme which has the ability to oxidize both phenolic and non-phenolic compounds through reduction of molecular oxygen to …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 65–76 Read article
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Improvised Rapid Antibiotic Sensitivity Test by Disc Dispersion Method
Abstract: Multidrug resistance is the one of vital issue globally, there are several causes for multidrug resistance, like improper utilization of antibiotics and selection of suitable antibiotics are the one of the predominant reasons for multidrug resistance gaining. To enable physician to select the suitable antibiotics, appropriate antibiotic sensitivity shall be performed in shortest time period. A method has been developed to get the antibiotic sensitivity test in 2–3 hours for …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 3, 2018 · pp. 44–57 Read article
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Taxonomic Assessment of Thermostable Amylase Producer from the Unkeshwar Hot Spring, Nanded
Abstract: Total 42 thermophiles were isolated from the Unkeshwar hot spring of Maharashtra, India. Of these 23 thermostable amylase producers were identified as Bacillus alvei APP1, Bacillus brevis APP2, Bacillus sterothermophilus APP3, Bacillus subtilis APP4, Bacillus farraginis APP5, Bacillus firmus APP6, Bacillus licheniformis APP7, Bacillus megaterium APP8, Lysinibacillus sphaericus APP10, Paenibacillus alvei APP11, Bacillus simplex APP12, Staphylococcus cohnii APP15, Streptococcus thermophilus APP16, Bacillus cereus APP18, Bacillus atrophaeus APP19, Bacillus lentus APP24, …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 113–126 Read article
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Production, Optimization and Purification of Laccase Produced by Pleurotus ostreatus MH591763
Abstract: The optimization of production medium for laccase produced by Pleurotus ostreatus (Gene Bank Accession number MH591763) to reduce the cost of laccase production in large scale is the basic research in industrial field. In this study, the laccase culture medium was optimized for growth parameters such as incubation period, pH, temperature, carbon and nitrogen source on fungal growth and enzyme production. Purification and characterization of the enzyme was done by …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 56–64 Read article
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Microbial Contaminants in Commercial Beverages: Health Concerns and Suggestive Preservative Methods
Abstract: AbstractFruit juices are the important source of vitamins, minerals and antioxidants, essential for the growth and development of every human. However, due to the presence of various nutritive components, it provides optimal conditions for the growth of food microorganisms. Various pathogenic and non-pathogenic bacteria, fungus, yeasts and parasites are found to be associated with fruit juices. Many of these microbes generally enters at the time of packaging and cause various …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 1–10 Read article
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Novel Plant Growth Promoting Rhizobacteria from Rhizospheres of Date Palm (Phoenix dactylifera): 16S rRNA Typing and Phylogenetic Analyses Reveal their Distinct Identity
Abstract: AbstractPlant growth-promoting rhizobacteria (PGPR) comprise a large portion of soil microbiome and are essential for the growth of plants as they are capable of exhibiting a range of plant growth promoting biochemical mechanisms. Reports on rhizosphere microflora of date palm tree Phoenix dactylifera are scarce and the rhizomicrobiome of the date palm tree is expected to have microbial members that exhibit features to overcome stress due to varying conditions such …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 11–25 Read article
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Phytochemical Characterization and Antimicrobial Activity of Cassia Alata Leaf Extract
Abstract: Aim: The aim of this study was screening for bioactive compounds with pharmaceutical properties from Cassia alata leaf extract. Methodology: The dried sample of Cassia alata leaf was powdered and extracted with ethanol using soxhlet apparatus. Antimicrobial activity of the leaf extract was checked against different clinical pathogens. Result and discussion: Thin layer chromatography (TLC) revealed the number of compounds present in the leaf extract. The results suggest that they …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 3, 2019 · pp. 20–24 Read article
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Evaluation of Cholesterol Reduction in Probiotic Strain Lactobacillus brevis isolated from Human Fecal Sample by Using Surface Response Methodology
Abstract: Lactobacillus brevis, isolated from human feces was assessed for its in vitro cholesterol reduction ability. The effects of bile salts, inoculum size and contact time in simulated intestinal juice were studied. Central composite design model was utilised to determine the effects of interactions of significant variables on cholesterol reduction. By developing a linear regression model, as a function of growth associated variables in vitro cholesterol reduction was assessed. The results …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 40–49 Read article
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All Climates Carboxymethyl Cellulase from Psychrophilic Fungus Truncatella angustata
Abstract: The aim of this research was to screen the activity of carboxymethyl cellulase (CMCase) in laboratory stocks of psychrotrophic fungi (Penicillium canescens BPF4, Truncatella angustata BPF5 and Pseudogymnoascus roseus BPF6). Of the three fungal species, the psychrotrophic fungus T. angustata showed maximum CMCase activity under cold temperatures. The maximum CMCase activity from T. angustata was found at 40°C, a residual activity of 60 % at 4°C, 90% at 10°C, 75% …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 50–55 Read article
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Growth Inhibitory Effects of Centella asiatica Extracts on Escherichia coli
Abstract: Plant secondary metabolites have been known for their varying degrees of antimicrobial activity. These form important constituent of traditional medicine. The present study aims to analyze the antibacterial effects of the Centella asiatica extracts by looking into the growth inhibitory effects of organic and aqueous extracts of the leaves on Escherichia coli bacterium and to identify the secondary metabolites present in the extract by phytochemical analysis. The leaf extracts of …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 2, 2019 · pp. 1–7 Read article
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Evaluation of Diagnostic Sensitivity of Rapid Immuno-Chromatographic Card Test (ICT) Against IgM ELISA for Serological Diagnosis of Scrub Typhus: An Experience at a Tertiary Care Centre in South-Eastern Rajasthan
Abstract: Introduction: Scrub typhus (ST) is a common but under-reported rickettsial disease in rural/sub-urban population of our country often resulting in severe complications and high mortality. Evaluation of ‘point of care’ tests like Rapid Immuno-Chromatographic Card Test (ICT) for diagnosis of ST is important to ascertain its utility in diagnosis of the disease in remote and peripheral settings. Aims: The present study was designed to evaluate the diagnostic sensitivity of Rapid …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 85–91 Read article
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Enhancement of Quercetin from Peel of Cucurbita by using Bacillus cereus Species through Fermentation Process
Abstract: Cucurbita (Pumpkin) is one of the nutritious vegetables and belongs to Cucurbitaceae family. It contains high percentage of quercetin flavonoids. In this research, enhancement of quercetin from peel of Cucurbita has been done by using Bacillus cereus species through fermentation process. The quercetin production was found to show best results from fermentation process than extraction process due to biotransformation. In this research, the highest production of quercetin was found to …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 3, 2019 · pp. 6–8 Read article
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Production and Characterization of Cardanol Based Schiff Complexes and their Biological Significance
Abstract: Synthesis and analysis of cardanol consisted Schiff base ligand along with its complexes such as Cu, Co and Ni are considered as a novel tetradentate cardanol contained Schiff base ligand molecules for various biological effects. It is prepared by the condensation reaction of 2-aminophenol and di-α formylmethoxybis (3-pentadecenyl phenyl) methane which is termed as DFMPM in the molar ratio of 2:1. The characterization of the experimental compounds is done with …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 2, 2019 · pp. 19–24 Read article
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Isolation and Identification of Bacteria Causing Chronic Suppurative Otitis Media and Its Antibiogram
Abstract: Background: Chronic Suppurative Otitis Media (CSOM) is defined as chronic inflammation of middle ear and mastoid cavity, which presents with recurrent ear discharge or otorrhoea through a tympanic perforation. According to WHO, the prevalence of CSOM in India is more than 4% and it falls among those countries where urgent attention is needed. It can be caused by various bacteria, fungus and viruses. Bacterial origin of CSOM is more common …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 3, 2019 · pp. 1–5 Read article
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Analysis of Natural Pigments and its Application on Various Fields towards the Eco-Friendly Environment
Abstract: The pigments that are found naturally in the environment are most likely to be said as "earth colour" or "earth pigment". The traditional pigments are observed to have all the substances that are available on the natural environment and are of more economic values. The pigments as a natural dye are observed to be safe, highly efficient and eco- friendly. These organic colorants are observed to contain oxygen, carbon with …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 3, 2019 · pp. 9–19 Read article
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Heavy Metals Removal by Adsorption Using Aloe barbadensis Miller Leaves Residue Powder for More Sustainable Environment
Abstract: Aloe barbadensis Miller residue from herbal wastes has often proved to be effective in the removal of heavy metals from industrial wastewaters. This study was focused on the adsorption of lead using A.barbadensis Miller residue. The initial concentration of lead ions was varied and the influence of contact time, adsorbent dosage, pH and initial metal concentration on adsorption process were studied. The temperature and agitation speed were kept constant at …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 92–98 Read article
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Lancefield Group of Streptococci Isolated from Dental Plaque Biofilm
Abstract: The purpose of this study was to detect Lancefield group of Streptococci from different disease diagnosed in dental patient visiting the clinic. A total of 500 dental samples of plaque biofilm isolates were tested. Plaque sampling site varied depending on the condition and disease diagnosed in individual subjects. The plaque biofilm samples were collected from subgingival and supragingival including cervical margin of all erupted teeth. Oral diseases such as aphthous …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 99–105 Read article
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FTIR Spectrum Analysis and Antibacterial Activity of Tribulus terrestris Leaves Extract
Abstract: The present study deals with the analysis of Fourier-transform infrared spectroscopy (FTIR) spectrum. Tribulus terrestris leaf extract has the carboxylic acid, alkane, aldehyde, unsaturated ketone, phenol, anhydride and halogen compound. These compounds are effective against bacteria such as Staphylococcus aureus, Bacillus subtilis and Escherichia coli. The results from the present screening revealed that the strongest antibacterial activity was exhibited by the ethanol extract, and the least activity in the chloroform …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 3, 2019 · pp. 25–30 Read article