2006
DOI: 10.1590/s0100-40422006000100017
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Caracterização química de glucanas fúngicas e suas aplicações biotecnológicas

Abstract: Recebido em 28/9/04; aceito em 27/4/05; publicado na web em 24/8/05 CHEMICAL CHARACTERIZATION AND BIOTECHNOLOGY APPLICATIONS OF FUNGAL GLUCANS. This article gives an overview of exopolysaccharides produced by fungi. The structural characterization of β-D-(1→3) and β-D-(1→3, 1→6)-glucans is discussed focusing on different chemical and physical procedures. The industrial applications are also considered mainly from the point of view of human health.Keywords: exopolysaccharides; glucans; structural characterizati… Show more

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Cited by 20 publications
(13 citation statements)
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“…6 ). According to Silva et al ( 2006 ), most of the polysaccharides are produced directly as responses to environmental factors. For some microorganisms, the carbon source determines the amount of polysaccharide formed, and the quality of the synthesized product.…”
Section: Discussionmentioning
confidence: 99%
“…6 ). According to Silva et al ( 2006 ), most of the polysaccharides are produced directly as responses to environmental factors. For some microorganisms, the carbon source determines the amount of polysaccharide formed, and the quality of the synthesized product.…”
Section: Discussionmentioning
confidence: 99%
“…In addition to acting as a sustenance element to the hyphae, some polysaccharides form an extracellular sheath around the mycelium, providing support for the adhesion of lignin-degrading enzymes, an indirect source of hydrogen peroxide, aside from protecting the cells from dehydration. Furthermore, polysaccharides may regulate extracellular glucose concentration (Gompertz et al 2002;Da Silva et al 2006).…”
Section: Extraction and Concentrationmentioning
confidence: 99%
“…Moreover, the monosaccharide polymerization can occur in different positions of the sugar units, generating a wide variety of linear or branched chains with great structural variability and different functions (Da Silva et al 2006;Hu et al 2013). The secondary structure of the molecule can also vary, depending on the conformation of its components, the molecular mass, and the inter-and intra-chain interactions (Paulsen 2002).…”
Section: Extraction and Concentrationmentioning
confidence: 99%
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“…Visto que se sabe pouco sobre os recursos genéticos das comunidades microbianas da Antártida,Duarte, et al (2013) estudaram amostras de leveduras obtidas de ambientes terrestres e marinhos, bem como suas capacidades de produção de enzimas ativas em temperaturas baixas a moderadas.A levedura Cryptococcus victoriae se destacou como uma das espécies mais abundantes, encontrada em sedimentos marinhos, líquens e Salpa sp. Estes microrganismos vivem em ambientes desfavoráveis para atividades metabólicas comuns, porém desenvolveram adaptações no sistema enzimático e membranas que fazem com que eles sobrevivam e proliferem em condições adversas(CORRADI DA SILVA, et al, 2006).Os microrganismos que vivem nos locais com mais de uma limitação, como temperatura, nutrientes, luz, etc., são obrigados a produzir substâncias de defesa contra os efeitos nocivos do ambiente em que são expostos. As condições climáticas mais extremas do planeta são encontradas na Antártida, local seco, frio e ventoso.…”
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