Enhanced Bioactivity of Streptomycin Bioconjugated Metal Nanoparticles Against Streptomycin Resistant Sp.

Unlabelled: The emergence of multidrug resistance in pathogenic organisms has caused growing concern, especially among healthcare providers, necessitating the development of new antimicrobial compounds. Resistance to metal nanoparticles is more challenging for any pathogen and thus paved a new avenue of research to formulate a new line of drugs combined with metal nanoparticles to treat microbial resistance. In this present investigation, green synthesised silver (AgNP), gold (AuNP), and platinum (PtNP) nanoparticles using the rind extract of the fruit of Garcinia mangostana L.

Effect of incubation period on the glycosylated protein content in germinated and ungerminated seeds of mung bean (Vigna radiata (L.) Wilczek).

The effects of different incubation periods on the contents of amino acids, proteins, glycosylated proteins and metabolites in germinated and ungerminated mung bean seeds were investigated in this study. The study employs soaking of mung bean seeds in water under laboratory conditions at 28 °C for 3, 6, and 9 h, followed by germination for 12, 24, 36, and 48 h. Seeds collected from different period of imbibition and germination were subjected to total protein extraction for phytochemical analysis.

Valorization of agro-wastes for the biosynthesis and characterization of polyhydroxybutyrate by sp. isolated from rice bran dumping yard.

Investigations have been made to determine the usage of inexpensive agro-waste products as an alternative carbon source for the production of degradable bacterial polyester. Among 33 bacterial isolates, a gram-positive bacterium PPECLRB-16 isolated from rice bran dumping yard was found to accumulate a relatively higher quantity of PHB and identified as sp. through 16S rRNA gene sequence analysis.

Statistical augmentation of polyhydroxybutyrate production by Isoptericola variabilis: Characterization, moulding, in vitro cytocompatibility and biodegradability evaluation.

This study aimed to explore the production of polyhydroxybutyrate (PHB), a polyhydroxyalkanoate (PHA), which has been widely considered as a potential substitute for the synthetic polymers. Among 53 actinomycete isolates, 11 of them were found to be PHB positive and the quantity of PHB from the positive isolates varied from 10.5 to 29.

Synthesis of a 1,2,3-bistriazole derivative of embelin and evaluation of its effect on high-fat diet fed-streptozotocin-induced type 2 diabetes in rats and molecular docking studies.

The embelin derivative 2a was synthesized with the 1,2,3-bistriazole and spectral data confirmed its structural identity. Anti-diabetic and anti-lipidemic effects were evaluated using HFD-STZ induced type 2 diabetic rats. The derivative 2a (30 mg/kg b wt.

Antibacterial Activity study of Musizin isolated from Rhamnus wightii Wight and Arn.

The crude extracts and the compounds isolated from traditional medicinal plants are used to treat infectious diseases caused by bacteria, fungi, and viruses. An attempt has been made in the present investigation to evaluate the antibacterial activity of musizin isolated from Rhamnus wightii, (Family: Rhamnaceae) against Gram-positive (Bacillus cereus, Staphylococcus aureus, Streptococcus faecalis), and Gramnegative (, , and ) bacteria. The tested compound showed more pronounced antibacterial activity against the tested pathogens than the standard antibiotics like streptomycin and gentamycin with the lowest minimum inhibitory concentration (MIC).

Enhanced method for High Spatial Resolution surface imaging and analysis of fungal spores using Scanning Electron Microscopy.

Efficient, fast and new micro-analytical methods for characterization of ultrastructures of fungal spores with electron microscopy are very much required and essential. SEM analysis of biological materials, especially fungi, requires optimal preparation of the specimen and often requires the usage of dried samples which demands a challenging sample preparation. In the present investigation, we described a fast and improved method for the preparation of fungal specimen for scanning electron microscopy (SEM).

Impact of geography on adaptation of seeds.

The present study was aimed to evaluate adaptive mechanism in terms of seed characters of collected from ten different locations of Tamil Nadu, India. The adaptive variations among the collected populations were assessed based on the sink and float percentages of the seeds in water, the percentage of seed germination, total protein, carbohydrates and their seedling's growth ability such as shoot and root lengths. From this, we observed that the population had a significantly higher germination percentage of sinking seeds that were attributed to its relatively higher carbohydrate and protein contents than the floating seeds.

Studies on detection and analysis of proteases in leaf extract of medicinally important plants.

Ethno-pharmacological Relevance: The whole plant or the extracts obtained from them have long been used as medicine to treat various human diseases and disorders. Notably, those plants endowed with protease activity have been traditionally used as the agents for treating tumors, digestion disorders, swelling, blood coagulation, fibrinolysis and also for immune-modulation.

Aim Of The Study: Proteases occupy a pivotal position in enzyme based industries.

Indigenous plant growth-promoting bacteria enhance plant growth, biomass, and nutrient uptake in degraded forest plants.

The present study was aimed to isolate indigenous plant growth-promoting bacteria (PGPB) from Nanmangalam reserve forest, India and to analyze their positive impact on nursery plant species. In total, 160 isolates were obtained from different nitrogen-free Media (LGI, JMV, NFB). Amongst these, 12 isolates were shown positive for 5-8% of ammonia production nif H positive and then isolates were further tested for their plant growth-promoting (PGP) activity.

Bioactive potential and composition analysis of sulfated polysaccharide from Acanthophora spicifera (Vahl) Borgeson.

Marine seaweeds contain a valuable source of functional bioactive polysaccharide and it plays main role for effective anticancer activity. The structural feature of SPs was studied through FT-IR and H NMR spectra analysis. The isolated SPs from A.

Polyhydroxybutyrate by Streptomyces sp.: Production and characterization.

A total number of 20 actinomycetes isolates were isolated from soil sediments obtained from Semmancheri coastal areas of Bay of Bengal, India and they were qualitatively screened for the production of polyhydroxybutyrate (PHB) on a medium containing Sudan black stain. Nine of the 20 isolates produced PHB and the quantity of PHB produced varied from 1.79 to 4.

Antibacterial cysteine protease from Cissus quadrangularis L.

An antibacterial Cp was extracted from the stem of Cissus quadrangularis and purified with a 5.39 fold increase in specific activity and 8.67% recovery.

An in vitro study on the burn wound healing activity of cotton fabrics incorporated with phytosynthesized silver nanoparticles in male Wistar albino rats.

In modern therapeutics, chemically synthesized drugs have been reported as causing adverse effects including allergies, rashes, itches, and swelling. For the past few decades, silver nanoparticles (AgNPs) have widely been applied in medical domains due to their antimicrobial and wound healing properties. In the present study, different concentrations of phytosynthesized AgNPs-saturated cotton dress fabrics - in comparison to cotton fabrics treated with commercial ointment - were tested for 18days to assess their ability to speed the healing of rats' burn wounds.

Antibacterial serine protease from Wrightia tinctoria: Purification and characterization.

A serine protease was purified from the leaves of Wrightia tinctoria by sequential flow through method comprising screening, optimization, ammonium sulfate precipitation, gel filtration and ion exchange column chromatography. The yield and purification fold obtained were 11.58% and 9.

Mass cultivation of UV-B adapted Arthrospira platensis RRGK under open raceway pond for the production of Poly-β-hydroxy butyrate.

Six different strains of cyanobacteria were isolated from the freshwater lake, Arakkonam, India. Staining of cells with Nile Red showed the presence of large quantities of PHB granules in the cell cytoplasm of Arthrospira. Molecular identification of the strain was carried out using 16S rRNA analysis and their systematic position was ascertained as Arthrospira platensis RRGK.

Optimization of polyhydroxybutyrate production utilizing waste water as nutrient source by Botryococcus braunii Kütz using response surface methodology.

Investigations have been made to optimize various factors including pH, temperature, and substrate for enhanced polyhydroxybutyrate (PHB) production in Botryococcus braunii which serves as a pioneer for production of bioplastic (PHB). Polyhydroxybutyrate is a natural, decomposable polymers accumulated by the microorganism under different nutritional condition. Strain selection was done by staining method using Sudan black and Nile red dye.

Qualitative and quantitative determination of R-phycoerythrin from Halymenia floresia (Clemente) C. Agardh by polyacrylamide gel using electrophoretic elution technique.

R-Phycoerythrin is one of the phycobiliproteins widely found in seaweeds. In this study, we have shown to extract and purify R-Phycoerythrin from the south east cost Indian red seaweed Halymenia floresia. R-Phycoerythrin was extracted in 50mM phosphate buffer (pH 7.

Biosynthesis, purification and characterization of polyhydroxybutyrate from Botryococcus braunii kütz.

Polyhydroxybutyrate (PHB) is completely biodegradable which is metabolised by microorganisms in the soil as their sole food source in few years. The level of PHB up to 10.6% of algal dry weight is of great potential of the eco-friendly nature.

Isolation, purification and characterization of antimicrobial protein from seedlings of Bauhinia purpurea L.

A novel antimicrobial protein was purified from the seedlings of Bauhinia purpurea by sequential procedures entailing ammonium sulfate precipitation, cation exchange chromatography, preparative native-PAGE and a yield of 2.7% was obtained from the crude extract. The purified antimicrobial protein appeared as a single protein band on SDS-PAGE with the molecular mass of 20.

Highly potential antifungal activity of quantum-sized silver nanoparticles against Candida albicans.

The antifungal activity of polyvinylpyrrolidone (PVP)-stabilized quantum-sized silver nanoparticles (SNPs) against the growth of Candida albicans has been demonstrated in the present study. C. albicans is a known opportunistic human pathogen causing superficial and systemic infections.

Stabilization of mitochondrial and microsomal function of fucoidan from Sargassum plagiophyllum in diethylnitrosamine induced hepatocarcinogenesis.

Crude fucoidan from Sargassum plagiophyllum extracted from blade and purified by Q-Sepharose fast flow anion-exchange chromatography and three fucoidan fractions were obtained. Maximum sulphate containing fucoidan fraction was considered as purified fucoidan and purity was checked with agarose gel electrophoresis. The monosaccharides of purified fucoidan analysed by HPLC revealed the presence of the sugars such as fucose as a major sugar were 70.

Cell surface shaving of Candida albicans biofilms, hyphae, and yeast form cells.

We used a brief trypsin treatment followed by peptide separation and identification using nano-LC followed by off-line MS/MS to identify the surface proteins on live Candida albicans organisms growing in biofilms and planktonic yeast cells and hyphae. One hundred thirty-one proteins were present in at least two of the three replicates of one condition and distributed in various combinations of the three growth conditions. Both previously reported and new surface proteins were identified and these were distributed between covalently attached proteins and noncovalently attached proteins of the cell wall.

Studies on screening, isolation and purification of a fibrinolytic protease from an isolate (VK12) of Ganoderma lucidum and evaluation of its antithrombotic activity.

Antithrombotic activity of a protease purified from a medicinal mushroom, Ganoderma lucidum, has been evaluated platelet aggregation in vitro and pulmonary thrombosis in vivo. The purified protease exhibited concentration dependent inhibitory effects on platelet aggregation induced by ADP (adenosine diphosphate), with an IC(50) value of 2.4 mg/mL.

Proteomic analysis of cytoplasmic and surface proteins from yeast cells, hyphae, and biofilms of Candida albicans.

Candida albicans is a human commensal and opportunistic pathogen that participates in biofilm formation on host surfaces and on medical devices. We used DIGE analysis to assess the cytoplasmic and non-covalently attached cell-surface proteins in biofilm formed on polymethylmethacrylate and planktonic yeast cells and hyphae. Of the 1490 proteins spots from cytoplasmic and 580 protein spots from the surface extracts analyzed, 265 and 108 were differentially abundant respectively (>or=1.