Guar Gum
Mostrando 25-36 de 51 artigos, teses e dissertações.
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25. Dieta rica em fontes de fibras alimentares : efeitos sobre a mucosa gastrointestinal ulcerada de ratos
Works have related the consumption of dietary fibers, mainly in the soluble form, with the increase of the protective capacity of the gastric and duodenal mucous membranes. The orange pulp (OP), the guar gum (GG) and the (100:40) mixture orange pulp/guar gum (OPG) were used as fiber sources and the physical and physicochemical characteristics were characteri
Publicado em: 2004
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26. AÃÃo de diferentes tipos de fibras sobre fraÃÃes lipÃdicas do sangue e fÃgado de ratos / Action of the different sorts of fibers on lipid portions of rats blood and liver
Aiming to determine some physical â chemical properties and the effects of soluble fibers citric pectin and guar gum on the lipid fractions of wistar ratsâ blood and liver consuming diets containing cholesterol, 36 animals were utilized, which were allotted to a randomized design and divided into six groups which made up the standard diet. Over a five-day
Publicado em: 2003
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27. Seleção de linhagens produtoras de goma isoladas da cana-de-açucar
The aim of this work was to isolate and select potentia1ly gum producing strains present in sugar cane. Guns are biopolymers carne 1Tom vegetal (e.g., guar gurn, carragen gum) or microbian (e.g., xantan gum, dextran gum) source. Dextran producing bacteria are 1Tequently found in damaged sugar cane. Dextran is a biopolymer that consists of a-Dglucose monomeri
Publicado em: 2003
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28. Estudo das interações entre biopolimeros e polpas de frutas tropicais em cisalhamento estacionario e oscilatorio
The rheological behavior of guar and xanthan gums in passion tfuit pulp was evaluated by means of shear flow and oscillatory shear tests. Herschel-Bulckley model represented successfully biopolymers flow behavior and Cross model was used to describe those behaviors in a broad shear stress range. In pulp tfuit systems, xanthan gum showed more pseudoplasticity
Publicado em: 2002
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29. Utilização de amido de milho ceroso pre-gelatinizado e gomas xantana e guar como substituto de gordura em bolos
Initially, the behaviour of the gums xanthan and guar and the commercials starchs Instant Pure Flo F (pregelatinized waxy corn starch) com starch and N - Lite LP (waxy com starch) on cakes was studied. The specific volume of the cake (ml/g), the specific gravity of the dough (g/ml) and cake quality were analysed. The gums presented a similar profile and the
Publicado em: 1998
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30. Produção e caracterização do biopolimero produzido por Beijerinckia sp isolada do solo cultivado com cana-de-açucar da região de Ribeiro Preto-São Paulo-Brasil
Two microorganisms were isolated and selecionated from a sugar cane plantation from the North-East region of the São Paulo. They were identified as Beijerinckia sp, strains 7070 and 9102AA . Sucrose solutions at concentrations from 0.1 to 5.0% in Yeast Malt medium were used to determine cellular growth of the 7070 strain. The 1 % sucrose medium showed the b
Publicado em: 1995
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31. Contribuição ao estudo da estabilização fisica do suco do maracuja integral (Passiflora edulis f. flavicarpa desg.)
The purpose of this work was to study, in the laboratory, the spontaneous clarification which occurs in passion fruit juice (Passiflora edulis f. flavicarca Deg) to better understanding the factors influencing its physical stability. The raw material used in the experiments was a chemically preserved juice, which was processed in a commercial Plant in the S�
Publicado em: 1989
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32. Analysis of proteins associated with growth of Bacteroides ovatus on the branched galactomannan guar gum.
Bacteroides ovatus, a gram-negative obligate anaerobe from the human colon, can ferment the branched galactomannan guar gum. Previously, three enzymes involved in guar gum breakdown were characterized. The expression of these enzymes appeared to be regulated; i.e., specific activities were higher in extracts from bacteria grown on guar gum than in extracts f
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33. In vitro and in vivo evaluation of guar gum matrix tablets for oral controlled release of water-soluble diltiazem hydrochloride
The objective of the study was to develop guar gum matrix tablets for oral controlled release of water-soluble diltiazem hydrochloride. Matrix tablets of diltiazem hydrochloride, using various viscosity grades of guar gum in 2 proportions, were prepared by wet granulation method and subjected to in vitro drug release studies. Diltiazem hydrochloride matrix t
Springer-Verlag.
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34. Cross-linked guar gum microspheres: A viable approach for improved delivery of anticancer drugs for the treatment of colorectal cancer
In the present work, guar gum microspheres containing methotrexate (MTX) were prepared and characterized for local release of drug in the colon, which is a prerequisite for the effective treatment of colorectal cancer. Guar gum microspheres were prepared by the emulsification method using glutaraldehyde as a cross-linking agent. Surface morphological charact
Springer-Verlag.
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35. Purification and characterization of a cell-associated, soluble mannanase from Bacteroides ovatus.
Bacteroides ovatus, a human colonic anaerobe, utilizes the galactomannan guar gum as a sole source of carbohydrate. Previously, we found that none of the galactomannan-degrading enzymes were extracellular, and we characterized an outer membrane mannanase which hydrolyzes the backbone of guar gum to produce large fragments. We report here the purification and
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36. Characterization of an outer membrane mannanase from Bacteroides ovatus.
Bacteroides ovatus utilizes guar gum, a high-molecular-weight branched galactomannanan, as a sole source of carbohydrate. No extracellular activity was detectable. Approximately 30% of the total cell-associated mannanase activity partitioned with cell membranes. When inner and outer membranes of B. ovatus were separated on sucrose gradients, the mannanase ac