Galactomannans
Mostrando 1-12 de 21 artigos, teses e dissertações.
-
1. Evaluation of Caesalpinia pulcherrima endospermic gum as affinity matrices for galactose-binding lectins interaction
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 epichloroh
Brazilian Archives of Biology and Technology. Publicado em: 2011-04
-
2. Pharmaceutical use of galactomannans
The pharmaceutical use of galactomannans from different sources, commercial and noncommercial, has been extensively studied over the past decade. Galactomannans show potential in the global trend towards the use of more plant-based products for ecological motives, and their production and application do not cause pollution or disturb the ecosystem. There is
Química Nova. Publicado em: 2011
-
3. CaracterizaÃÃo estrutural e potencial da galactomanana de Adenanthera pavonina L. como matÃria-prima para produÃÃo de filmes comestÃveis bioativos / Structural characterization and potential of the Adenanthera pavonina L. galactomannan as raw material to production of bioactive edible films.
Neste trabalho de Tese, filmes comestÃveis bioativos foram produzidos a partir da blenda galactomanana-amido-nisina. A galactomanana do endosperma de sementes de Adenanthera pavonina foi extraÃda e sua estrutura fina foi estudada atravÃs de tÃcnicas de RMN. Sua razÃo M/G (=1,46) determinada e sua estrutura estÃo de acordo com o que foi relatado na lite
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/03/2009
-
4. Xiloglucanas e galactomananas de leguminosas: interaÃÃo com lectinas D-galactose-ligantes / Xyloglucans and galactomannans legumes: interaction with lectins D-galactose-binding
PolissacarÃdeos ocorrem em grandes quantidades nas sementes como componentes da parede celular ou como reserva. Dentre estes Ãltimos, incluem-se as xiloglucanas cotiledonÃrias e as galactomananas endospÃrmicas. As xiloglucanas apresentam uma cadeia principal de β-D-(1→4)-glucana ramificada com ligaÃÃes α-(1→6) por resÃduos D-xilo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/07/2007
-
5. Characterization of the galactomannans from Parkinsonia aculeata seeds and their application on affinity chromatography
Successive aqueous (10 ºC, 25 ºC and 80 ºC) and alkaline (1M NaOH; 25 ºC) extractions of milled Parkinsonia aculeata endosperms gave rise to four galactomannan fractions. These extractions furnished viscous galactomannans with Man:Gal ratios ranging from 3.1:1; 3.7:1; 4.9:1 and 6.1:1 (P1, P2, P3 and P4, respectively). Fraction P1 was used for structural
Polímeros. Publicado em: 2006-06
-
6. Blends of agar/galactomannan for Marubakaido apple rootstock shoot proliferation
Galactomannans (GMs) extracted from seeds of a native Brazilian specie designated Cassia fastuosa (cassia) and from Cyamopsis tetragonolobus (guar gum - a commercial GM) were mixed with agar, in the proportion of 3/3 g.L¹ (w/w), and used as a gelling agent in Marubakaido apple rootstock (Malus prunifolia Borkh) micropropagation. The rheological measurements
Polímeros. Publicado em: 2005-06
-
7. Endo-beta-mananase de endosperma de Sesbania virgata (Cv.) Pers : purificação, caracterização e importancia na germinação e desenvolvimento da plantula
Many plant seeds have an endosperm, a tissue specialised either as storage or mechanical constraint to embryo growth. In many legume species, endosperms contain galactomannan. This polyssacharide is composed of a main chain of 1,4-β-mannan branched with variable amounts of 1,6-ά-linked galactosyl residues. Three enzymes produced by an aleurone laye
Publicado em: 2003
-
8. Atividade indutora de fitoalexinas e produção de substancias fungitoxicas durante a germinação de sementes de Sesbania marginata Benth
Sesbania marginata Benth is a tropical legume that stores galactomannan in its thickened endospermic cell walls. These polysaccharides are composed of a linear backbone of 13-1,4- linked D-mannose residues to which D-galactose residues are attached by a-1,6 linkages. Following germination, the galactomannan is completely broken down producing considerable am
Publicado em: 2002
-
9. Immunological Studies on Dermatophytes II. Serological Reactivities of Mannans Prepared from Galactomannans I and II of Microsporum quinckeanum, Trichophyton granulosum, Trichophyton interdigitale, Trichophyton rubrum, and Trichophyton schoenleinii
The contribution of terminal galactofuranose residues to the antigenic specificity and to cross-reactivity of galactomannans isolated from five species of dermatophytes, Microsporum quinckeanum, Trichophyton granulosum, T. interdigitale, T. rubrum, and T. schoenleinii, was investigated. Galactofuranose units were removed from galactomannans I and galactomann
-
10. Immunological Studies on Dermatophytes I. Serological Reactivities of Neutral Polysaccharides with Rabbit Antiserum to Microsporum quinckeanum
Antiserum produced in the rabbit to autoclaved mycelial suspensions of Microsporum quinckeanum reacted with three neutral polysaccharides isolated from each of five species of dermatophytes, M. quinckeanum, Trichophyton granulosum, T. interdigitale, T. rubrum, and T. schönleinii. The serological reactivities of these polysaccharides, grouped as galactomanna
-
11. Immunochemical studies on the galactomannans isolated from mycelia and culture broths of three Hormodendrum strains.
Six major antigenic galactomannans isolated from both mycelia and culture broths of three representative strains of three species of the genus Hormodendrum, H. pedrosoi IFO 6071, H. compactum IFO 6726, and H. dermatitidis IFO 6421, were investigated for their immunochemical properties by precipitin reaction and the passive cutaneous anaphylaxis test. We foun
-
12. Immunological Studies on Dermatophytes III. Further Analyses of the Reactivities of Neutral Polysaccharides with Rabbit Antisera to Microsporum quinckeanum, Trichophyton schoenleinii, Trichophyton rubrum, Trichophyton interdigitale, and Trichophyton granulosum
The serological reactivities of polysaccharides isolated from five species of dermatophytes, Microsporum quinckeanum, Trichophyton granulosum, T. interdigitale, T. rubrum, and T. schoenleinii, with rabbit antisera to these species were studied qualitatively by precipitation in gel and quantitatively by complement-fixation analyses. Significant differences in