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Evaluation of Caesalpinia pulcherrima endospermic gum as affinity matrices for galactose-binding lectins interaction BABT
Braga,Renata Chastinet; Teixeira-Sá,Daniele Maria Alves; Ribeiro,Alexsandra Feitosa; Miranda,Raquel Lima; Almeida,Lia Magalhães de; Horta,Ana Cecília Góes; Moreira,Renato de Azevedo.
Lectins are proteins or glycoproteins able to bind, specifically and reversibly carbohydrates and glycoconjugates. Considering this ability, the utilization of Caesalpinia pulcherrima seeds polysaccharides as an affinity matrix was tested. The endospermic gum were solubilized in distinct concentrations of NaOH and treated with different amounts of epichlorohydrin (ECH) forming affinity gels with variable capacity for interaction with galactose- binding lectins. The gel with an ECH/gum ration of 6.0mmol/g was selected as the best affinity matrix. The matrix presented different efficiencies in terms of isolating galactose-binding lectins. C. pulcherrima endospermic galactomannans were purified by ethanol precipitation and the purified galactomannan was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Galactose binding lectins; Affinity chromatography; Galactomannans.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000200009
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