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| Sousa,Letícia Pinheiro de; Silva,Annelisa Farah da; Calil,Natalia Oliveira; Oliveira,Murilo Gomes; Silva,Silvio Silvério da; Raposo,Nádia Rezende Barbosa. |
| This study evaluated, in vitro, the antimicrobial activity and the anti-adherent property of xylitol (0.5, 2.5 and 5.0%, w/v) on two Pseudomonas aeruginosa strains (ATCC 9027 and clinical). The assay of antimicrobial activity was performed to determine a minimum inhibitory concentration (MIC) and the adhesion test was performed, by which the parameters regarding, growth in the culture medium, number of colony forming units (CFUs) released and slide evaluation by scanning electron microscopy (SEM) were analyzed. The Statistical Package for the Social Sciences (SPSS) was employed for statistical analysis. Results showed that xylitol had no antimicrobial activity on these strains; however, the inhibition of bacterial adherence was observed in microphotographs... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial adhesion; Pseudomonas aeruginosa; Prevention and control; Xylitol. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000500004 |
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| Silva,Débora Danielle Virgínio da; Mancilha,Ismael Maciel de; Silva,Silvio Silvério da; Felipe,Maria das Graças de Almeida. |
| The effect of glucose on xylose-to-xylitol bioconversion by Candida guilliermondii was examined by adding it to sugarcane bagasse hydrolysate medium to obtain different glucose:xylose ratios (1:25, 1:12, 1:5 and 1:2.5). Under experimental conditions, increasing glucose:xylose ratio improved the assimilation of the xylose present in the hydrolysate by yeast, resulting in biomass increase, and in the formation of xylitol and glycerol/ethanol by-products. Maximum values of xylitol yield (0.59 g g-1) and volumetric productivity (0.53 g l-1.h-1) were obtained with glucose:xylose ratio of 1:5, resulting in the higher conversion efficiency (64.3%). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Candida guilliermondii; Glucose; Sugarcane bagasse hydrolysate; Xylitol; Xylose. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000200005 |
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