Mannan Oligosaccharides
Mostrando 1-12 de 24 artigos, teses e dissertações.
-
1. Evaluation of mannan-oligosaccharides offered in milk replacers or calf starters and their effect on performance and rumen development of dairy calves
The objective of this study was to evaluate the route of administration of mannan-oligosaccharides in the diet of dairy calves and their effects on performance and plasma parameters indicative of rumen development. Following birth, twenty-four male Holstein calves were used in a completely randomized design and assigned to the following treatments: Control;
Revista Brasileira de Zootecnia. Publicado em: 2012-03
-
2. Avaliação do desempenho de Suínos Alimentados com Mananoligossacarídeos (MOS) / Effects of mannan oligosaccharides on gilts and litters performance
The present study evaluated the effects of mananoligossacarides (MOS) as a feed additive on the performance of primiparous sows in late gestation and lactation, as well as on performance and health status of their progeny up to 65 days of age. The experiment was conducted in the Laboratory of Swine Research (FMVZ/USP) Pirassununga SP. For this purpose a comp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/08/2009
-
3. Mananoligossacarídeo e colistina na dieta de leitões desmamados
The objective of this trial was to evaluate the effects of prebiotic, antimicrobial, or association of both promoters in piglets diet upon performance, intestinal histomorfometry, and total IgA and IgG serum levels, in each treatment. The experiment was carried out in commercial pig farm, one-site production, using a hundred weaned castrated males, hybrid pi
Publicado em: 2006
-
4. Influence of yeast mannan on release of myeloperoxidase by human neutrophils: determination of structural features of mannan required for formation of myeloperoxidase-mannan-neutrophil complexes.
Structural features of mannan which participate in the formation of myeloperoxidase-mannan-neutrophil complexes have been studied by using a battery of structurally modified mannans. Mannan was isolated from Saccharomyces cerevisiae X2180 wild type and modified by strong alkaline degradation, selective (mild) alkaline degradation, and selective acetolysis. M
-
5. Immunosorbent for the Isolation of Specific Antibodies Against Mannan: Localization of Antigens in Yeast Cell Walls
A procedure is given for the insolubilization of yeast mannan by entrapment in a polyacrylamide gel. Specific anti-mannan antibodies were separated by immunosorption from all other antibodies of a rabbit antiserum against whole, Formalininactivated Candida utilis cells. Colloidal gold coated with the anti-mannan and anti-non-mannan antibody fractions was use
-
6. Precipitin Inhibition of Candida stellatoidea Antiserum with Oligosaccharides Obtained from the Parent Mannan 1
Inhibition of immune precipitation with oligosaccharides obtained from Candida stellatoidea mannan has been used to provide more information about the haptenic groups of this serologically active polysaccharide. The oligosaccharides di-, tri-, tetra-, and a mixture of penta- and hexasaccharides were studied. The inhibitory activity of these materials was tes
-
7. Structure of cell wall mannan of Candida kefyr IFO 0586.
We conducted a structural analysis of the antigenic cell wall mannoprotein (mannan) isolated from Candida kefyr (formerly Candida pseudotropicalis) IFO 0586. The result of two-dimensional homonuclear Hartmann-Hahn analysis of this mannan indicates that the molecule is constructed from alpha-1,2- and alpha-1,6-linked mannopyranose residues. Upon alkali treatm
-
8. Enzymatic action of coliphage omega8 and its possible role in infection.
The receptor of coliphage omega8 is the O-specific mannan of Escherichia coli O8 in which the trisaccharide alpha-mannosyl-1,2-alpha-mannosyl-1,2-mannose is joined through alpha-mannosyl-1,3-linkages. Coliphage omega8 produces an endo-alpha-1,3-mannosidase which destroys the receptor, liberating a series of oligosaccharides (repeating trisaccharide and multi
-
9. Cloning and analysis of the Saccharomyces cerevisiae MNN9 and MNN1 genes required for complex glycosylation of secreted proteins.
Proteins secreted by the yeast Saccharomyces cerevisiae are usually modified by the addition at asparagine-linked glycosylation sites of large heterogeneous mannan units that are highly immunogenic. Secreted proteins from mnn1 mnn9 mutant strains, in contrast, have homogeneous Man10GlcNAc2 oligosaccharides that lack the immunogenic alpha 1,3-mannose linkages
-
10. Method for Fingerprinting Yeast Cell Wall Mannans
Controlled acetolysis of yeast mannans yields mixtures of oligosaccharides with (1→2) and (1→3) linkages between the mannose units, whereas the less stable (1→6) linkages of the polysaccharide backbone are cleaved. The “fingerprints,” obtained by gel filtration of the oligosaccharide mixtures, can be used to distinguish between the different yeast
-
11. Analysis of mannans of two relatively avirulent mutant strains of Candida albicans.
We previously reported the isolation of two cerulenin-resistant mutant strains of Candida albicans 4918 that differ in adherence properties and are less virulent than the parental strain. In addition, biochemical characterization demonstrated significant differences in both protein and polysaccharide composition of cell wall material between the mutant and w
-
12. Transfer Specificity of Detergent-Solubilized Fenugreek Galactomannan Galactosyltransferase
The current experimental model for galactomannan biosynthesis in membrane-bound enzyme systems from developing legume-seed endosperms involves functional interaction between a GDP-mannose (Man) mannan synthase and a UDP-galactose (Gal) galactosyltransferase. The transfer specificity of the galactosyltransferase to the elongating mannan chain is critical in r
American Society of Plant Physiologists.