Asian Journal of Microbiology, Biotechnology and Environmental Sciences Impact Factor & Information

Current impact factor: 0.00

Impact Factor Rankings

Additional details

5-year impact 0.00
Cited half-life 0.00
Immediacy index 0.00
Eigenfactor 0.00
Article influence 0.00
ISSN 0972-3005

Publications in this journal

  • Asian Journal of Microbiology, Biotechnology and Environmental Sciences 08/2015; In Press.

  • Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):189-192.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Gastric and oesophageal cancer surgery is performed to remove cancerous tissue or to by pass part of the tumour tissue to prevent blockage of the stomach or oesophagus. However, surgical operations of the gastrointestinal tract may lead to alterations in the gut microbial community. Therefore the aim of this study was to determine changes in microbial community profile in the gastrointestinal tract of pre- and postoperative gastric and oesophageal cancer patients using polymerase chain reaction - denaturing gradient gel electrophoresis (PCR-DGGE). Our results showed that changes occur in the intestinal tract after gastric and oesophageal cancer surgery but not immediately after operation.OIn oesophageal cancer patients, Collinsella sp. was detected in both pre- and post- operative subjects. Serratia marcesens, a prominent opportunistic pathogen was detected after oesophageal cancer surgery in one subject. Acholeplasma parvum which is known to survive in host environments was detected in one gastric cancer patient after six months of operation. In both gastric and oesophageal cancer patients most of the bacterial species detected belonged to Actinobacteria and Firmicutes. The data obtained in this study could provide a basis for modulation of gut microbial balance after surgery which could lead to faster recovery, and prevention of post operative bacterial infections.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):53-59.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Amidases (EC hydrolyzes amides with the production of the corresponding carboxylic acids and ammonia and are the most widely used amide-hydrolyzing enzymes in industry. It holds a great potential for biotechnological applications in organic acids synthesis, bioremediation, waste water treatment, synthesis of pharmaceutical chemical like anti-cancerous and anti-HIV Hydroxamic acids etc. Here, we report the purification of amidase from Bacillus sp. APB-6 and after purification the enzyme was characterized for optimum activity. The enzyme was purified by about 21.7 fold with specific activity 19.5 U/mg protein. A purified amidase enzyme of 44kDa was obtained after initially precipitated with 60% Acetone. The acetone precipitated enzyme was then loaded on to the anion exchange column (DEAE-Cellulose) and then the protein was analysed by SDS-PAGE. The optimum temperature and pH of the enzyme was 55pC and 7.5 respectively. The Km and Vmax values for the purified amidase of APB-06 were 200mM and the Vmax was 100 pmoles/mg/min The enzyme was highly specific to substrate acetamide and less activity was detected in the presence of other amides, such as butyramide, cyanamide, nicotinamide and benzamide.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):79-85.
  • [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of this study was to examine the antibacterial potency of seaweed and to analyzes the ice-ice disease control through polyculture cultivation techniques. This research was conducted in two phases, namely laboratory and field study. The method used in the laboratory study is designed with a completely randomized design. The antibacterial activity assays performed with the agar diffusion method. Data of the inhibition zone diameter were analyzed by one-way analysis of variance followed by honestly significant difference test at a significance level of 5 %. Data of the field study collected base on appearance of the thallus and the percentage of infected clumps and analyzed descriptively. Data on wet weight gain per week were analyzed by t test. The results showed that the antibacterial activity of seaweed Achantophora spicifera, Caulerpa racemosa, Sargasum duplicatum and Lorencia obtusa provide a significantly different effect on (a using) isolates of Pseudomonas sp A of ice-ice disease seaweed. Achantophora spicifera showed stronger potency in inhibiting bacterial test so it was decided to be used as companion plants in biological control. The field study suggests that ice-ice disease in Kappaphycus alvarezii can be controlled through polyculture techniques. The result showed that in the treatment group 0.062 % infected by ice-ice disease, while in control group more than 50%. Therefore polyculture techniques can be used to control the ice-ice disease using seaweed Achantophora spicifera.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):7-15.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Experiments were carried out to evaluate the equilibrium and thermodynamic behaviour of the batch adsorption system involving the use of modified activated sludge for the treatment of refinery waste water. The equilibrium data were determined for the sorption system and fitted with three equilibrium isotherm models, namely Langmuir, Freundlich and Dubinin-Radushkevich models. Langmuir isotherm fitted well with the equilibrium data with high values of correlation coefficient and the maximum COD uptake capacity was determined from the linear plot as 147.06 mg/g at an operating temperature of 30°C. The thermodynamic studies were conducted to evaluate the Gibbs free energy and the negative values observed in this study confirmed the spontaneous nature of sorption. The enthalpy change was determined as-18.012 kj/mol indicating the exothermic nature of the process.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):261-265.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Present study is focused on the impact of effluent from tanneries and textile industries on the chemical characteristics of various water bodies in and around Erode, Tamilnadu, India. More than 40 tanneries and 500 textile dyeing industries are there in Erode. The surface water bodies affected are River Cauvery, Kalingarayan canal and Lower Bhavani Project canal which are used for drinking, household and irrigation purposes. Sixteen water samples were collected from various parts of industrial region and the samples were analyzed. Standard procedures were adopted to calculate the physical properties and trace elements in water samples. It is found in many samples that the water quality gets deteriorated. Presence of heavy metal toxicity such as Chromium, Cadmium and Lead also identified in some stations. Hence the flow of industrial, municipal and household effluents into the surface water causes serious pollution problems. A Perspective of environmental pollution associated with various industrial effluents and its remedies are described.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):267-272.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Food security had been a major and fast-growing concern worldwide. Following the 2008 food price crisis, which caused social and political unrest in several developing nations; there was a renewed sense of urgency and commitment among political and scientific communities towards increasing food production and meeting the challenges of an ever-increasing world population set to reach the 9.3 billion mark by 2050. In the current scenario, maximizing crop productivity on existing farmlands had been the only logical way to address food security concerns, as the amount of arable land is unlikely to increase in the future. Genetically modified (GM) crops offer massive benefits to the third world, if the ethical obligations were considered in developing the GM crops to combat the world food crisis.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):163-166.
  • [Show abstract] [Hide abstract]
    ABSTRACT: The present experiment was undertaken to study the effect of bioactive molecules (Cathecol and Eugenol) isolated from Camellia sinensis (Green Tea) and Piper betle (Paan) leaf extracts respectively, on the activity of β-lactamase enzyme produced by Methicillin resistant Staphylococcus aurues (MRSA). Bacterial isolate was obtained from the clinical samples, Anand, Gujarat, India. Extracts of fresh leaves of Camellia sinensis and Piper betle were prepared according to the previous published references. Various biomolecules were separated and identified using TLC and HPLC. Antimicrobial activity and β lactamase activity was checked against the crude extracts and the isolated molecule. Catechol, a derivative of Catechin present in Camellia sinensis was found to have the maximum inhibition on the β-lactamase activity in MRSA. Whereas, Eugenol was docked with penicillin binding protein 2A (PBP2A), which is mainly responsible for the resistant pattern in MRSA species.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):139-144.
  • [Show abstract] [Hide abstract]
    ABSTRACT: The emergence of methicillin-and, more recently, vancomycin-resistant strains of Staphylococcus aureus threaten to lead us back to the pre-antibiotic era. There is, therefore, an urgent need to develop novel therapeutic strategies to combat S. aureus infections. The wealth of knowledge available in the form of whole genome sequences of pathogenic bacteria has aided target-driven approaches to identify novel therapeutic targets. Here, we present a computational genomic analysis that elucidates the therapeutic target in drug-resistant Staphylococcus aureus.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):131-138.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Identification of resistant source of groundnut against sucking insect pests, viz., leafhoppers and thrips was undertaken for two seasons, kharif and rabi-summer, at Regional Research Station and Agricultural College, Raichur, Karnataka. The results on the promising sources of resistant varieties, influence of morphological characters and biochemical constituents of the host plant on insect damage, oviposition rate and survivability of pests on different genotypes/ varieties under caged condition were recorded on a total of 136 groundnut entries comprising 60 genotypes and 76 released varieties. Field screening of 60 genotypes and 76 released varieties over two season's revealed 16 genotypes and 7 varieties were resistant against the target pests. Among 76 released varieties screened for leafhopper reactions, 23 each under resistant and moderately resistant group, 17 varieties were moderately susceptible and nine varieties were susceptible. The highly susceptible group included four varieties. Out of 76 varieties screened for their reaction against thrips, 13 were found resistant, 35 were moderately resistant 12 each in moderately susceptible and susceptible category and five were highly susceptible. None the varieties were found to be seen immune to thrips damage.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):273-283.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Plants can benefit from soil microbes in many ways. Certain microbes stimulate plant growth, enrich soils, degrade pollutants, or protect plants against pathogens. Plant growth-promoting rhizobacteria (PGPR) are free-living, soil-borne bacteria, which, when applied to seeds or crops, enhance the growth of the plant or reduce the damage from soil-borne plant pathogens. In the present work a total of one hundred and nine bacterial strains have been isolated from the rhizosphere, surfaces root (rhizoplane) and the inner roots tissues (endophytic bacteria) of tomato plant cultivated in different locations of semi-arides zones in west of Algeria. Out of these, 53% of the total isolates exhibited a variable antagonistic activity against tomato wilt agent (F. oxysporum f.sp lycopersici). The endophytic strain ERL3 has exhibited the maximal inhibition rate equivalent to 78%. Effective antagonist isolates have been further screened for their plant growth promoting (PGP) activity viz., production of plant growth regulators (IAA), siderophores, HCN, inorganic phosphate solubilization, Ammonia and catalase production. Indole acetic acid has been detected in 72%, 66% and 61% epiphytic, endophytic and rhizospheric strains respectively. 47.45% among antagonist strains are of solubilization inorganic phosphates capacity. A maximal solubilization index (SI) of 2.48 has been obtained after 14 days of incubation with RMSK43 and RPMK26. Evaluation of Seven strains, each with multiple plant growth promoting activities, to enhance tomato plant growth was carried out in pots experiments under greenhouse conditions. All the isolates have significantly (P<0.01) increased shoot length, root length, shoot dry weight, root dry weight of the inoculated plant. The percentage increase of root weight was up 141.56% with RPMK2 and shoots weight up to 57.98% with RSBK10 over uninoculated control.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):17-26.
  • [Show abstract] [Hide abstract]
    ABSTRACT: The pigeon pea (Cajanus cajan) contains various proteins, carbohydrates such as starch, fibre, vitamins and minerals. The various functional properties of legume flours are provided by the composition of proteins, starch and complex carbohydrates present in them. Pigeon pea with seed coat (C06 variety from Tamil Nadu Agricultural University, TNAU) and without seed coat were evaluated for their protein, moisture, ash and fat contents. Protein content of the legume without seed coat was 4.97 and 5.41 mg/mL in water and saline extracts respectively. The protein content of the legume with seed coat (C06) was higher both in water and saline extracts (5.16 and 5.72 mg/mL in respectively). Pigeon pea with seed coat exhibited higher amount of protein, fat, moisture and ash. Foaming capacity and foam stability of the proteins extracted varied depending upon pH, temperature and fat content. Highest foaming capacity (with seed coat) was observed as 67.8% in water extract when maintained at 25 °C and foam stability (with and without seed coat) was observed as 100% in saline extracts when maintained at-20 °C. While foaming capacity of 55.4% was obtained in the water extract in the full fatted flour, highest foam stability of 100% was obtained in the saline extract of with seed coat when it was de-fatted. Foaming capacity and stability of flour suspensions at pH 2 to 11 varied significantly. Emulsifying activity with corn oil of the water extract was 33.3%, while the saline extracts shown slightly higher value (36.6%). The emulsion stability of water extract of sample with seed coat decreased by 10% and the emulsion stability of saline extract of sample without seed coat increased by 36% respectively after heat treatment. The results of this study demonstrated the potential of Pigeon pea as a good foaming and emulsifying agent. The leguminous protein may act as an alternative for the commercial foam inducers and emulsifiers using in food products.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):181-187.
  • [Show abstract] [Hide abstract]
    ABSTRACT: In the present times, increasing demand for the microbial enzymes in different industries is-making their production on commercial level very important. Cellulases, pectinases, lipases etc. are examples of commercially produced enzymes that contribute largely to the global economics, Xylanase is another industrially valuable enzyme that is used for the degradation of xylan. Xylan is the complex heterogenous polysaccharide belonging to the hemicellulosic component of lignocelluloses which are natural complex organic carbons present in the form of plant biomass. Xylan is the major constituent of the plant cell wall. Degradation of xylan by xylanase is a crucial step in several other industries like food, pulp, textile etc. For instance the xylan in the dough to be used for making bread makes it tight and results in crumbs formation while baking. Xylanase is also used for processing plant fibres such as hessian or linen in the textile industry. Therefore such industries require xylanase to be produced on vast commercial scale. The commercial production of xylanase involves a very basic and vital step known as the optimization of factors that affect its production. This step is essential for obtaining the maximum possible yield to achieve better quality product and economic advantage. There are two approaches for achieving the optimization, one is by using the conventional one factor at a time (OFAT) technique and the second one is by using statistical and computational biological tools such as those which work on the principle of Response Surface Methodology (RSM). Some recent works suggest that optimization of these parameters by using RSM is less time consuming, less labour intensive and economical along with being the better option to conventional method as it gives higher values of maximum possible yields of xylanase. This review article helps tó understand the need for the large scale production of xylanase. The article, with the help of some recent 'works also helps to study and compare the two different approaches (OFAT and RSM) used for achieving the optimization of factors that affect the commercial production of xylanase.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):241-247.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Due to wide spread use of petrol in situ biodégradation of pollutants has attracted immense attention in the few decades. Oil contaminated soil isolates, identified as Pseudomonas aeruginosa and Acinetobacter Iwoffii by 16S ribosomal DNA (rDNA) sequencing and phylogentic anaylsis were used for the present investigation. The bacterium grew optimally at 37°C and pH 6.5 and maximum growth was obtained at 5% (v/v) petrol concentration. The intermediate of biodégradation catechol was detected by HPLC. Biodegradation of petrol was monitored by quantitative gas chromatographic analysis. The percent degradation of petrol by Pseudomonas aeruginosa and Acinetobacter lowffi within 25 days was found to be 95% and 97% respectively. These strains were thereby suggestive for application in petrol biodégradations under all investigated nutritional and environmental conditions in polluted soil.
    Asian Journal of Microbiology, Biotechnology and Environmental Sciences 01/2015; 17(1):255-259.