Data/hora: 16/06/2024 14:49:50

Provedor de dados: | 52
País: | Brazil
Título: | Antimicrobial effect of a crude sulfated polysaccharide from the red seaweed Gracilaria ornata
Autores: | Amorim,Rodrigo das Neves dos Santos; Rodrigues,José Ariévilo Gurgel; Holanda,Márjory Lima; Quinderé,Ana Luíza Gomes; Paula,Regina Célia Monteiro de; Melo,Vânia Maria Maciel; Benevides,Norma Maria Barros.
Data: | 2012-04-01
Ano: | 2012
Palavras-chave: | Rhodophyta; Sulfated macromolecules; Chemical analysis; Antimicrobial.
Resumo: | The aim of this study was to determine the yield, chemical composition, specific rotation (SR), infrared (IR) spectroscopy and the effect on bacterial growth of a crude sulfated polysaccharide (SP) from the red marine alga G. ornata (Go). Go-1 (25°C), Go-2 (80°C), and Go-3 (80°C) were sequentially extracted and yielded 9.2%. The contents of sulfate (5.88-10.3%) and proteins (0.1-3.7%) were small. The values of SR were [µ]D20°f -19.0, -51.0, and -56.5, respectively. IR spectrums showed the presence of galactose-4 sulfate and absence of 3,6-anydrogalactose-2 sulfate, galactose-6 sulfate and galactose-2 sulfate. SR and IR techniques confirmed SPs. Go-3 was tested on the growth of bacteria (Bacillus subtilis, Staphylococcus aureus, Enterobacter aerogens, Escherichia coli, Pseudomonas aeruginosa, Salmonela choleraesuis and Salmonela typhi), but only E. coli was inhibited.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000200001
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132012000200001
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.55 n.2 2012
Fonte: | info:eu-repo/semantics/openAccess