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Showing 1 to 20 of 29 for “"pectins"”.
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Effects of modified bioactive pectins on colon cancer cells in vitro
… rarely been addressed. In this study several pectins from citrus, sugar beet and potato were screened for their biological effects on colon cancer cells, their structures characterised in detail to assess the structure-function relationship and the molecular mechanisms of action investigated. …
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Characterization of Commercial Pectin Preparations by Spectroscopic and Chromatographic Techniques.
… metals to aid in characterizing it. Commercial pectins of unknown composition were obtained from local grocers. Purified pectin samples from orange peel, lemon peel, and apple pomace, each of low and high levels of methyl esterification and of unknown distribution pattern were also purchased. …
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In Vitro Analysis of Short Chain Fatty Acids and Human Fecal Microbiota Stimulated by Pectin Sources
… is used as a gelling and thickening agent. Pectins from different sources might have different characteristics such as the molecular size, DM (Degree of Methylation) and structural characteristics. For the current study, we hypothesize that pectins from different sources could have different …
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Desenvolvimento e otimização do processo de extração de pectina a partir do resíduo de maracujá da caatinga (Passiflora cincinnata Mast.) utilizando tecnologia do ultrassom de alta intensidade
… extract high-value bioactive molecules such as pectins, structural anionic heteropolysaccharides that have potential for application in numerous areas. Conventional or traditional pectin extraction methods have numerous limitations, such as: long processing time, high energy expenditure and …
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Improvement in the cooking and physico-chemical characteristics of hard-to-cook cowpeas by pre-conditioning and micronization
… According to the “phytate-divalent cations-pectins” theory, at adverse storage conditions, phytase probably hydrolysed phytate to release divalent cations which migrated to the middle lamella to bind with pectins, reducing their solubility. Because of the reduced pectin solubility of HTC …
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CHARACTERIZATION OF BACTERIAL LIPOPOLYSACCHARIDES (Pseudomonas syringae pv. tomato and Pseudomonas syringae pv. apii) AND PECTINS OF TOMATO AND CELERY PLANTS (Lycopersicon esculentum and Apium graveolens) REGARDING THEIR POSSIBLE ROLE IN HOST/PATHOGEN-INTERACTION
Alle Betriebe stellen eine beeindruckende Herausforderung des Verteidigens gegen viele Krankheitserreger gegenüber. Die Interaktionen zwischen einem Krankheitserreger und seinem Hauptrechner werden durch eine Anzahl von Faktoren geregelt. Bestimmte bakterielle Krankheitserreger besitzen eine sehr …
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Characterising the Macromolecular Interactions between Proteins and Polysaccharides
… Firstly, interactions between βLgA and pectins were studied in solution. We found that βLgA only interacted with pectins with an adequate amount of charge, and that the complexation between βLgA and pectin was a two-step process that lead to the formation βLgA-pectin complexes with two …
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The Preparation and Properties of Silicon-Carbohydrate Compounds
… that was the degradation of a variety of pectins, pectins are known to have a fairly high silicon content and it was hoped that degradation and separation would yield specific silyl organic compounds.
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COMPARATIVE ULTRASTRUCTURE OF APICAL CELLS AND DERIVATIVES IN BRYOPHYTES, WITH SPECIAL REFERENCE TO PLASMODESMATA
… LM20, an antibody against HG esterified pectins, does not localize in any of the cell walls during development. The distribution patterns for AGPs (JIM13 and LM2) are consistent during gametophore development and predominantly localize on the electron-lucent layer and wall/plasma membrane …
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The biochemistry and molecular biology of intercellular adhesion in plant tissue culture
… the middle lamella that is made principally of pectins and proteins. Pectins are secreted into the cell wall in a highly methylesterified form and subsequently de-esterified in muro by pectin methyl esterase (PME, E.C. 3.1.11). The present study reports on the biochemical characterization and …
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WET PROCESSING OF FIBRE BLENDS CONTAINING PRE HARVEST RETTED FLAX
… however, shown to remove only 5-25% of the flax pectins and it is suggested that lignin in the middle lamella acts as a barrier against enzymatic degradation of pectins. The application of laccase and laccase/mediator systems (after scouring) were shown to degrade flax fibre lignin to the extent …
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Factors affecting the quality of low-fat cheeses
… with amidated-, high-methoxy- and lowmethoxy pectins were investigated in the properties of reduced-fat Cheddar cheese. Increased moisture content and reduced insoluble calcium in cheeses made with amidated- and low-methoxy pectins led to improved texture and melting. Using ultrafiltration in …
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Cell wall involvement in desiccation tolerance in the resurrection plant Craterostigma wilmsii
… xyloglucan and of the unesterified pectins during drying with levels declining again during rehydration. In contrast no increase was observed in others polysaccharides such as ß (1-4) galactans and methylesterified pectins. Biochemical analysis allowed further characterization of …
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Evaluation of Prebiotic Fibers and Pectin on Probiotic Strains and Effect of Bacteriocin-like Substance on the Survival of Listeria Monocytogenes
… the health benefits of higher molecular weight pectins have not been fully evaluated. According to reviews, pectins are fermented in the large intestine due to the cooperative activities of colonic bacteria with complementary enzymatic activities. There are very few studies that demonstrate the …
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Evolution of stomata in mosses (Bryophyta): From molecules to form and function
… deformation to open and close the pore. Pectins are necessary for wall flexibility and proper stomatal functioning in seed plants. In this study of Funaria, immunogold-labeling using five antibodies to pectin epitopes was conducted on guard cell walls during development to relate these …
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Identification of grapevine Pectate Lyase genes altering Berry Texture during ripening
… 30-35% cellulose, 10% hemicellulose, and 35-40% pectins. Cellulose microfibrils, which are composed of β-1,4-glucan chains, provide tensile strength and serve as the structural backbone of the cell wall. These microfibrils are cross-linked by hemicelluloses, with xyloglucan being the predominant …
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Evaluation of Pectin Methylesterase and Lactobacillus spp. Isolated from Tabasco Peppers (Capsicum frutescens L.)
… consequently increases manufacturing costs. Pectins play an important role in pepper processing since it forms gels and influences the final viscosity of the sauce. Hence, its integrity during processing influences the quality of the final product. Failures in pectin stability can sometimes …
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THE SPECIAL WALLS AROUND GAMETES IN CERATOPTERIS RICHARDII AND AULACOMNIUM PALUSTRE: USING IMMUNOCYTOCHEMISTRY TO EXPOSE STRUCTURE, FUNCTION, AND DEVELOPMENT
… developing eggs are bathed in (1,5)-α-L-arabinan pectins and not AGPs. Lastly, I examined the unique cell walls that are integral to sperm cell differentiation and release in both Ceratopteris and Aulacomnium. The preponderance of callose and hemicelluloses in the walls of the male gametes of …
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Impact of ingredient interactions on the physico-chemical stability of milk protein-stabilised oil-in-water emulsions
… the other hand. Anionic polysaccharides, such as pectins, were used to improve the stability of protein-stabilised emulsions around the protein’s iso-electric point by adsorption onto the interfacial protein layer, resulting in a beneficial combination of electrostatic and steric effects. However, …
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Functional metagenomic analysis of carbohydrate degrading enzymes from the human gut microbiota
… wall components (cellulose, hemicelluloses and pectins), resistant starch and various oligosaccharides reach the colon by escaping digestion in the upper gastrointestinal tract. Fermentation of these dietary carbohydrates by the gut microbiota has well-recognised beneficial effects on host …
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