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| Oliva Neto,Pedro de; Lima,Fabíola Aliaga de; Silva,Ketrin Cristina da; Silva,Douglas Fernandes da; Carvalho,Ana Flavia Azevedo; Santos,Catarina dos. |
| The purpose of this study was to determine the Minimum Inhibitory Concentration (MIC) of pure or mixed chemicals for Saccharomyces cerevisiae and Lactobacillus fermentum in the samples isolated from distilleries with serious bacterial contamination problems. The biocides, which showed the best results were: 3,4,4' trichlorocarbanilide (TCC), tested at pH 4.0 (MIC = 3.12 mg/l), TCC with benzethonium chloride (CBe) at pH 6.0 (MIC = 3.12 mg/l) and TCC mixed with benzalkonium chloride (CBa) at pH 6.0 (MIC = 1.53 mg /l). If CBa was used in sugar cane milling in 1:1 ratio with TCC, a 8 times reduction of CBa was possible. This formulation also should be tested in fermentation steps since it was more difficult for the bacterium to develop resistance to biocide.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ethanol; Lactic acid bacteria; Saccharomyces cerevisiae; Lactobacillus fermentum. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000300019 |
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| Chen,Ling-Ju; Tsai,Hsiu-Ting; Chen,Wei-Jen; Hsieh,Chu-Yang; Wang,Pi-Chieh; Chen,Chung-Shih; Wang,Lina; Yang,Chi-Chiang. |
| As lactobacilli possess an antagonistic growth property, these bacteria may be beneficial as bioprotective agents for infection control. However, whether the antagonistic growth effects are attributed to the lactobacilli themselves or their fermentative broth remains unclear. The antagonistic growth effects of Lactobacillus salivarius and Lactobacillus fermentum as well as their fermentative broth were thus tested using both disc agar diffusion test and broth dilution method, and their effects on periodontal pathogens, including Streptococcus mutans, Streptococcus sanguis, and Porphyromonas gingivalisin vitro at different concentrations and for different time periods were also compared. Both Lactobacillus salivarius and Lactobacillus fermentum and their... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactobacillus fermentum; Lactobacillus salivarius; Streptococcus mutans; Streptococcus sanguis; Porphyromonas gingivalis; Periodontitis. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400019 |
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| Reque,Elizete de F.; Pandey,Ashok; Franco,Sebastião G.; Soccol,Carlos R.. |
| Studies were carried out to isolate and identify microorganisms for probiotic use for chickens. Selection of strains included various criteria such as agreement with bio-safety aspects, viability during storage, tolerance to low pH/ gastric juice, bile, and antimicrobial activity. The strains were isolated from the crop, proventriculus, gizzard, ileum and caeca of chicken. Decimal dilution of the contents of these segments were mixed with MRS medium and incubated for 48 h at 37°C under anaerobiosis. The identity of the culture was based on characteristics of lactobacilli as presented in the Bergeys Manual of Determinative Bacteriology, carrying out bacterioscopy (morphology), Gram stain, growth at 15 and 45°C, and fermentation of different carbon sources.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Probiotic; Poultry; Lactobacillus fermentum. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000400012 |
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| Saavedra,Nicolás; Barrientos,Leticia; Herrera,Christian L; Alvear,Marysol; Montenegro,Gloria; Salazar,Luis A. |
| Dental caries is an infectious disease of worldwide public health concern. Among the bacteria involved in this pathology are Streptococcus mutans, Streptococcus sobrinus and organisms belonging to the genera Actinomyces and Lactobacillus. The pharmaceutical industry is focussing on the discovery of new antibacterial products after a greater resistance to those already known. Propolis has been used since ancient times, so their effects against various microorganisms have been already investigated. In our study, we evaluated the antimicrobial effect of 6 commercial ethanolic propolis extracts on the bacterium Lactobacillus fermentum. This bacterium was isolated after its identification by Polymerase Chain Reaction using species specific primers, and after... |
| Tipo: Journal article |
Palavras-chave: Lactobacillus fermentum; Dental caries; Propolis; Antibacterial activity. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000100011 |
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