Beta Glucans
Mostrando 1-12 de 59 artigos, teses e dissertações.
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1. 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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2. 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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3. 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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4. 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
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5. Produção e caracterização de uma [beta]-glicanase de Rhizopus microsporus var. microsporus, e seu potencial para aplicação na indústria da cerveja
In the barley malting process, partial hydrolysis of β-glucans begins with seed germination. However, the endogenous 1,3-1,4-β-glucanases are heat inactivated, and the remaining high molecular weight β-glucans may cause severe problems such as increased brewer mash viscosity and turbidity. Increased viscosity impairs pumping and filtration, re
Publicado em: 2007
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6. Caracterização química de glucanas fúngicas e suas aplicações biotecnológicas
This article gives an overview of exopolysaccharides produced by fungi. The structural characterization of beta-D-(1->3) and beta-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.
Química Nova. Publicado em: 2006-02
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7. Study of immune response, colonization, and invasion by Salmonella enterica subsp. enterica serotype Typhimurium (1796NR) Nalr, in broiler chickens, treated with glucans, probiotics, and competitive exclusion products / Estudo da resposta imune, da colonização e invasão por Salmonella enterica subsp enterica sorotipo Typhimurium Nalr em frangos de corte, tratados com glucano, probióticos e produtos de exclusão competitiva
O efeito de sete tratamentos, contendo β-glucano, um probiótico experimental, e um produto de exclusão competitiva assim como suas associações, foram avaliados frente a um desafio com Salmonella Typhimurium Nalr e na resposta imune, em frangos de corte. Dois experimentos foram realizados; o primeiro experimento apresentou seis tratamentos que consis
Publicado em: 2006
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8. Otimização da extração de glucanas insolúveis da parede celular de Saccharomyces cerevisiae, sua ação hipocolesterolêmica e os efeitos na clastogenicidade e teratogenicidade causadas pela exposição aguda à ciclofosfamida em camundongos
As glucanas têm se destacado entre os ingredientes de interesse para a indústria de alimentos, que atualmente desenvolve alimentos funcionais e para a indústria farmacêutica, por sua ação hipocolesterolêmica e hipoglicêmica e sua capacidade de aumentar a resistência imunológica e ação anti-mutagênica. A otimização da extração das glucanas in
Publicado em: 2006
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9. Produção, purificação, clonagem e aplicação de enzimas líticas
Lytic enzymes such as beta-1,3 glucanases, proteases and chitinases are able to hydrolyse, respectively, beta-1,3 glucans, mannoproteins and chitin, as well as the cell walls of many yeast species. Lytic enzymes are useful in a great variety of applications including the preparation of protoplasts; the extraction of proteins, enzymes, pigments and functional
Química Nova. Publicado em: 2005-10
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10. Beta-2-linked glucans secreted by fast-growing species of Rhizobium.
Fast-growing species of Rhizobium were found to secrete low-molecular-weight beta-2-linked glucans when cultured in synthetic liquid medium. These glucans are quite similar to beta-2-linked glucans produced by species of Agrobacterium. No reducing terminus was detected in these glucans.
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11. Synthesis of glycerophosphorylated cyclic beta-(1,2)-glucans by Rhizobium meliloti ndv mutants.
The periplasmic cyclic beta-(1,2)-glucans of Rhizobium spp. are believed to provide functions during hypoosmotic adaptation and legume nodulation. In Rhizobium meliloti, cyclic beta-(1,2)-glucans are synthesized at highest levels when cells are grown at low osmolarity, and a considerable fraction (> or = 35%) of these glucans may become substituted with phos
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12. Periplasmic glucans of Pseudomonas syringae pv. syringae.
We report the initial characterization of glucans present in the periplasmic space of Pseudomonas syringae pv. syringae (strain R32). These compounds were found to be neutral, unsubstituted, and composed solely of glucose. Their size ranges from 6 to 13 glucose units/mol. Linkage studies and nuclear magnetic resonance analyses demonstrated that the glucans a