Glucans
Mostrando 1-12 de 257 artigos, teses e dissertações.
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1. Chitosan and Agaricus brasiliensis Polysaccharides Films: A Preliminary Study
The known biotechnological properties of chitosan and the recent biological activities attributed to polysaccharides from Agaricus brasiliensis have been of interest to obtain films constituted by these two polymers. The glucans obtained from the mushroom inhibited about 96.5% of the ferrous ion, besides not promoting a significant increase of lactate dehydr
J. Braz. Chem. Soc.. Publicado em: 2020-05
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2. β-Glucanase Addition in Brewing Malt Produced by Reduced Time of Germination
Abstract The β-Glucans content has straight influence on the quality of malt and beer, mainly during the filtration step. Barley presenting high β-Glucan content demands longer germination time at malting. The application of commercial β-Glucanase is an alternative to accelerate the process and preserve the quality of malt. This work aimed to evaluate the
Braz. arch. biol. technol.. Publicado em: 20/12/2019
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3. Beta-glucan attenuates cerebral ischemia/reperfusion-induced neuronal injury in a C57BL/J6 mouse model
Beta-glucans (βg), that have many useful effects on human health, are natural polysaccharides. Our aim in this study was to determine useful effect of βg against oxidative and neuronal damage caused by global cerebral ischemia/reperfusion (IR) in stroke imitated mice via surgical operation. A total of 40 mice divided into four equal groups randomly. The gr
Braz. J. Pharm. Sci.. Publicado em: 24/10/2019
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4. Endophytic Actinomycetes as Potential Producers of Hemicellulases and Related Enzymes for Plant Biomass Degradation
Abstract Tailor made enzymatic preparation must be design to hydrolyze efficiently plant biomass, once that each plant biomass possesses a distinct cell wall composition. Most of actinomycetes used for plant cell wall degradation are focused on the cellulases and xylanases production. However, a wide range of enzymes must be produced for an efficient degrada
Braz. arch. biol. technol.. Publicado em: 29/08/2019
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5. Inducible cellulase production from an organic solvent tolerant Bacillus sp. SV1 and evolutionary divergence of endoglucanase in different species of the genus Bacillus
Abstract Bacteria are important sources of cellulases with various industrial and biotechnological applications. In view of this, a non-hemolytic bacterial strain, tolerant to various environmental pollutants (heavy metals and organic solvents), showing high cellulolytic index (7.89) was isolated from cattle shed soil and identified as Bacillus sp. SV1 (99.2
Braz. J. Microbiol.. Publicado em: 2018-06
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6. Agaricus brasiliensis polysaccharides stimulate human monocytes to capture Candida albicans, express toll-like receptors 2 and 4, and produce pro-inflammatory cytokines
Abstract Background Agaricus brasiliensis is a medicinal mushroom with immunomodulatory and antitumor activities attributed to the β-glucans presented in the polysaccharide fraction of its fruiting body. Since β-glucans enhance cellular immunoresponsiveness, in this study we aimed to evaluate the effect of an acid-treated polysaccharide-rich fraction (ATF
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 27/04/2017
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7. Physicochemical properties of frozen tortillas from nixtamalized maize flours enriched with β-glucans
AbstractEffects of different β-glucan concentrations in maize flour on the properties of frozen maize tortillas were evaluated. Masa (dough), pre-cooked (PTs), frozen (FTs), thawed (TTs), and cooked tortillas (CTs) were made and analyzed. Moisture content of masa and tortillas significantly decreased as β-glucan concentration increased; however, the water
Food Sci. Technol. Publicado em: 03/10/2015
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8. Polysaccharides from the fungus Scleroderma nitidum with anti-inflammatory potential modulate cytokine levels and the expression of Nuclear Factor kB
Several pharmacological properties are attributed to polysaccharides and glucans derived from fungi such as tumor, anti-inflammatory, and immunomodulatory activity. In this work, the anti-inflammatory potential of polysaccharides from the fungus Scleroderma nitidum and their possible action mechanism were studied. The effect of these polymers on the inflamma
Revista Brasileira de Farmacognosia. Publicado em: 23/11/2011
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9. Potencial da madeira Eucalyptus benthamii Maiden et Cambage visando à produção de celulose Kraft / Potential of Eucalyptus benthamii Maiden et Cambage wood for kraft pulp production
The purpose of this study was to evaluate the quality of Eucalyptus benthamii wood for kraft pulp production. Probably the most planted Eucalyptus clone in Brazil, a hybrid of Eucalyptus urophylla x Eucalyptus grandis, was also analyzed for comparison purposes. The wood characteristics analyzed were the basic density and chemical composition. Laboratory pulp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2010
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10. Efeito da dieta à base de Cogumelo do Sol (Agaricus blazei, Murrill) no parênquima pulmonar de ratos submetidos a estímulo carcinogênico pela nitrosamina 4-metilnitrosamina-1-3piridil-1 butanona (NNK) / Effect of diet of sun mushroom (Agaricus blazei Murrill) in the lung parenchyma of rats subjected to stimulation with the carcinogen nitrosamine-4-1-metilnitrosamine 3piridil-1butanone (NNK)
The mushrooms have been used for many years as food for its nutritional value and/or as a therapeutic agent. One of the most studied fungus is currently the Agaricus blazei Murrill, popularly Known as Cogumelo do Sol, for its beneficial credited in the prevention of cancer. This study examined the effects of ingestion of A. blazei in the lung parenchyma of w
Publicado em: 2010
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11. The interaction between Histoplasma capsulatum cell wall carbohydrates and host components: relevance in the immunomodulatory role of histoplasmosis
Histoplasma capsulatum is an intracellular fungal pathogen that causes respiratory and systemic disease by proliferating within phagocytic cells. The binding of H. capsulatum to phagocytes may be mediated by the pathogen's cell wall carbohydrates, glucans, which consist of glucose homo and hetero-polymers and whose glycosydic linkage types differ between the
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-05
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12. Caracterização de cogumelos de Pleurotus ostreatus e Lentinula edodes produzidos em resíduos agroindustriais / Characterization of mushrooms of Pleurotus ostreatus and Lentinula edodes produced in agro-industrial wastes
Mushrooms were known and consumed by the Roman, Greek, Chinese, Egyptian and Central America civilizations. Today, more than two thousand species of potentially edible mushrooms are recognized, however, a little more than 10 are commercially exploited in the world. The consumption of mushrooms has been increasing because of the nutritional and medicinal qual
Publicado em: 2009