Gellan Gum
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Fruit pastes with organic honey texturized with gellan gum: bioacessibility of antioxidant activity and sensory analysis fruit pastes with gellan and organic honey
Abstract Three paste formulations were developed for four fruits: caja, murici with mango and pitanga, with differentiated percentages of fruit pulp, organic honey and gellan gum. Pulps, honey and fruit paste formulations were analyzed by antioxidant capacity, vitamin C and in vitro bioaccessibility. All formulations showed a high content of vitamin C, antio
Food Sci. Technol. Publicado em: 13/06/2019
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2. Elaboration and characterization of pectin-gellan films added with concentrated supernatant of Streptococcus infantarius fermentations, and EDTA: effects on the growth of Escherichia coli, Staphylococcus aureus and Listeria monocytogenes in a Mexican cheese medium, and physical-mechanical properties
Abstract Films were prepared with 0.2% (w/v) gellan gum, 1% (w/v) citric pectin, 0.5% (w/v) glycerol, 5 mM CaCl2, 0.05 M Ethylenediaminetetraacetic acid (EDTA), and different concentrations of an antimicrobial activity-concentrated supernatant (AMC) obtained from fermentations of Streptococcus infantarius, which produces bacteriocin-like inhibitory substanc
Food Sci. Technol. Publicado em: 07/05/2018
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3. Imobilização da tanase de Paecilomyces variotii e ação em reações de hidrólise e síntese / Immobilization of tannase from Pecilomyces variotii and reactions of hydrolysis and synthesis
Tannin acyl hydrolase (TAH) known as tannase (EC 3.1.1.20) is an enzyme that hydrolyzes esters of hydrolysable tannins producing gallic acid and glucose as the reaction medium is polar. However, the literature indicates their ability to produce also gallic acid esters in organic media. Our research group has isolated a fungus, Paecilomyces variotii, tannase
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/06/2012
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4. Influence of gellan conformation on milk protein gelation / Influencia da conformação da gelana sobre a gelificação das proteinas do leite
Tendo em vista a necessidade do entendimento das interações entre ingredientes para o desenvolvimento de novos produtos lácteos e para o controle e manipulação de suas características de estabilidade e textura, este trabalho teve como objetivo elucidar as interações entre as proteínas do leite e a goma gelana. Foi estudado o efeito de diferentes con
Publicado em: 2008
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5. Rheology and microstructure of gellan acid gels. / Reologia e microestrutura de geis acidos de gelana.
A influência da concentração de polissacarídeo, do pH de equilíbrio (de 2,0 a 4,0) e da aplicação de tratamento térmico (70 ou 90ºC/ 30min) sobre as propriedades reológicas e de microestrutura de géis de gelana acidificados lentamente pela adição de glucona-lactona (GDL) foi estudada nesse trabalho. Os sistemas foram caracterizados quanto à cin
Publicado em: 2006
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6. Gellan gum as a substitute for agar in leptospiral media.
An albumin polysorbate semisolid medium (Ellinghausen McCullough Johnson Harris medium) gelled with gellan gum (Gelrite; Kelco Div., Merck & Co., Inc.) compared favorably with conventional agar media for the cultivation of both pathogenic and saprophytic leptospires. The gellan gum medium supported the growth of all 18 leptospiral strains studied which inclu
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7. Feasibility study of disk diffusion susceptibility tests with Mueller-Hinton broth solidified with Gelrite, an agar substitute.
Feasibility studies were done to determine whether a new agar substitute, Gelrite gellan gum, could be used to prepare a solid Mueller-Hinton medium for disk diffusion susceptibility tests. Mueller-Hinton broth was combined with 0.43% of the gellan gum and 0.75% KCI. The resulting medium had performance characteristics similar to those of Mueller-Hinton agar
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8. Identification of the pgmG Gene, Encoding a Bifunctional Protein with Phosphoglucomutase and Phosphomannomutase Activities, in the Gellan Gum-Producing Strain Sphingomonas paucimobilis ATCC 31461
The pgmG gene of Sphingomonas paucimobilis ATCC 31461, the industrial gellan gum-producing strain, was cloned and sequenced. It encodes a 50,059-Da polypeptide that has phosphoglucomutase (PGM) and phosphomannomutase (PMM) activities and is 37 to 59% identical to other bifunctional proteins with PGM and PMM activities from gram-negative species, including Ps
American Society for Microbiology.
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9. Structures and Properties of Gellan Polymers Produced by Sphingomonas paucimobilis ATCC 31461 from Lactose Compared with Those Produced from Glucose and from Cheese Whey
The dairy industry produces large quantities of whey as a by-product of cheese production and is increasingly looking for new ways to utilize this waste product. Gellan gum is reliably produced by Sphingomonas paucimobilis in growth media containing lactose, a significant component of cheese whey, as a carbon source. We studied and compared polysaccharide bi
American Society for Microbiology.
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10. Release Mechanisms Behind Polysaccharides-Based Famotidine Controlled Release Matrix Tablets
Polysaccharides, which have been explored to possess gelling properties and a wide margin of safety, were used to formulate single-unit floating matrix tablets by a direct compression technique. This work has the aim to allow continuous slow release of famotidine above its site of absorption. The floating approach was achieved by the use of the low density p
Springer US.
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11. Selective Isolation and Distribution of Sporichthya Strains in Soil
A simplified enrichment method in which centrifugation is used for selective isolation of Sporichthya strains from soil is described. Gellan gum plus 2 mM CaCl2 stimulated growth of Sporichthya polymorpha KCC A0089 so that this organism was readily recognized on an isolation plate. High yields of motile spores were obtained by using a flooding solution conta
American Society for Microbiology.
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12. Genetic transformation system in the archaebacterium Methanobacterium thermoautotrophicum Marburg.
A wild-type strain of Methanobacterium thermoautotrophicum Marburg was transformed by DNA from strains resistant to 5-fluorouracil. Recipient cells were grown without selection on gellan gum (GELRITE) plates with DNA. Drug-resistant cells were recovered by replica plating the resulting colonies onto drug plates. Transformation required high-molecular-weight