Showing papers in "Brazilian Journal of Microbiology in 2007"

TL;DR: Evaluating technical variants used in screening methods to determine antibacterial activity of natural products found bioautographic and diffusion techniques were found to have similar sensitivity; however the latter technique provided more suitable conditions for the microbial growth.

TL;DR: The fatty acid composition and the antibacterial and antifungal activities of Fatty Acid Methyl Esters (FAME) of the blind-your-eye mangrove plant found along the coastal areas of south India are determined for the first time.

TL;DR: The antibacterial activity of the crude methanol extract of Woodfordia fruticosa Kurz flower was evaluated at two different concentrations by the agar well diffusion method and the extract was more active against Gram-negative bacteria as compared to Gram-positive.

TL;DR: In this article, the authors verify the capability of Staphylococcus aureus of forming bio-film on stainless steel and glass surfaces, and evaluate the efficiency of sodium dichloroisocyanurate, hydrogen peroxide and peracetic acid in inactivating S.aureus cells adhered onto these surfaces.

TL;DR: The methanolic extract of Caryophyllus aromaticus presented the highest anti-S.

TL;DR: In dual culture technique the strain showed a strong antagonistic effect against Sclerotinia sclerotiorum, a white rot pathogen of Brassica campestris, and a drastic decline in the incidence of white rot was observed due to application of M. loti MP6.

TL;DR: Investigation of possible methods to enhance the rate of aerobic biodegradation of hydrocarbons (ex-situ treatments) using bioremediation processes applied to a sandy soil with a high level of contamination originated from the leakage of a diesel oil underground storage tank at a petrol station showed that all bioremedication strategies enhanced the natural biodemediation of the contaminated soil.

TL;DR: The results demonstrated that lipopeptides have a broad spectrum of action, including antimicrobial activity against microorganisms with multidrug-resistant profiles, and were sensitive to the surfactants, in particular Enterococcus faecalis.

TL;DR: Results showed that the addition of oregano essential oil to sausage may be a promising route as bacteriostatic effect was verified for oil concentrations lower than the MIC.

TL;DR: Antifungal properties of extracts from eight Brazilian plants traditionally used in popular Brazilian medicine were tested against five clinically relevant Candida species, Cryptococcus neoformans, and Sporothrix schenckii.

TL;DR: The methanol, acetone and N, N-dimethylformamide fractions of leaves of Psidium guajava L. were evaluated for antibacterial and antifungal activity and moderate activity was shown against the gram-negative bacterial strains studied.

TL;DR: Different methods for determination of antifungal activity of natural products are discussed and the use of M27-A2 microdilution test from CLSI, as general standard methodology for testing plant extracts activity is recommended.

TL;DR: The antimicrobial activity of Syzygium cumini leaves extract, known as “jambolao”, was evaluated and was active against multi-resistant strains of Pseudomonas aeruginosa, Klebsiella pneumoniae and Staphylococcus aureus.

TL;DR: B-amyrin acetate, tiliroside and luteolin showed the strongest antimicrobial effect and Hexane extracts presented the best results while ethanol extracts did not indicate inhibition of the microbial growth.

TL;DR: Strain ST712BZ inhibits the growth of Lactobacillus casei,Escherichia coli, Pseudomonas aeruginosa,Enterococcus faecalis, Klebsiella pneumoniae and LactOBacillus curvatus and bacteriocin production is inhibited in MRS supplemented with Vit.

TL;DR: An alkaliphilic and salt- tolerant actinomycete, Streptomyces clavuligerus strain Mit-1, was isolated from Mithapur, the western coast of India and produced substantial protease with various amino acids, when employed as the sole nitrogen sources.

TL;DR: As a part of a research program that aims to identify antibacterial and antifungal substances from fungus specimen of Brazilian's cerrado soil samples, Penicillium sclerotiorum was identified as a source of secondary metabolites possessing antibiotic activities.

TL;DR: The results showed that the antimicrobial efficacy of Curcuma zedoaria (Christm) Roscoe extract was similar to that of commercial products, and its incorporation into a mouthrinse could be an alternative for improving the antimacterial efficacy of the oral product.

TL;DR: The aim of this work was to isolate microorganisms from Brazilian soil contaminated with 2,4-D herbicide, and analyze the efficiency for 2-4D degradation, using high-performance liquid chromatography (HPLC) to represent a great potential for bioremediation.

TL;DR: The potentialization of the adherence capacity of Streptococcus mutans and Candida albicans when in association was confirmed and the biofilm that covered the entire analyzed dental surface was more homogeneous inoculated with the two microorganisms simultaneously than with each species separately.

TL;DR: All Aeromonas isolates were resistant to ampicillin, ticarcillin/clavulanic acid, cephalotin, and cephazolin, and most of them exhibited resistance to imipenem, carbenicillin, amoxillin/sulbactan, and piperacillin.

TL;DR: Several Central Amazonian rhizobia strains are revealed as promising sources of amylase for biotechnological applications, especially in starch industry.

TL;DR: In this article, the influence of the temperature (20, 25 e 30oC) agitation (50, 75 e 100 rpm), and the initial concentrations of both sucrose (150, 200 e 250 g.L-1) and yeast extract (2.0, 3.5 e 5.0g.L1) on final levan concentration was analyzed.

TL;DR: The importance of aspergillosis in the rehabilitation process of captive penguins is pointed out, and the necessity of an environmental disinfection on the asperGillosis prevention, mycosis that caused a high rate of mortality of the seabirds found on the Brazilian coast and admitted in the CRAM is emphasized.

TL;DR: A moderately cold active, extracellular alkaline protease producing bacterium was isolated from a fresh water lake and found to be optimally active at pH 9.0 and temperature 20oC.

TL;DR: Significant increases in rooting and root dry matter of cuttings grown on rhizobacteria-inoculated substrate were found when compared to untreated or indole-butyric acid (IBA) treated mini-cuttings.

TL;DR: Based on results obtained, the contaminant fungi did not affect the productivity, biological efficiency, and number of A. blazei mushrooms grown in compost when introduced into previously colonized composts.

TL;DR: The high prevalence of Salmonella in the broiler parts strenghtens the importance of the use of good manufacturing practices (GMP), and HACCP, and the need for the responsible use of antimicrobials in animal production.

TL;DR: In this article, the effect of surface hydrophobicity and surface elemental composition on the adhesion process of Salmonella Enteritidis to stainless steel 304 (SS 304) was analyzed.

TL;DR: Five pilot-scale mousse-making trials were produced and supplemented with Lactobacillus acidophilus La-5 probiotic culture, and the addition of fruits to probiotic products should be carefully planned because inhibition of probiotic strains might occur.