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Showing 1 to 20 of 21 for “"L-arabinose"”.
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Glucose and L-Arabinose Fermentation During Growth and Sporulation of Clostridium Thermosaccharolyticum
Made available in DSpace on 2014-12-09T14:36:58Z (GMT). No. of bitstreams: 1 6910651.pdf: 5065844 bytes, checksum: 28848074b35d6349d0a2365d392bc3a6 (MD5) Previous issue date: 1968
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Engineering a Fungal L-Arabinose Pathway Towards the Co-Utilization of Hemicellulosic Sugars for Production of Xylitol
… hemicellulosic pentose sugars D-xylose and L-arabinose from renewable plant biomass as feed substrates, my thesis research focused on utilizing a fungal-derived biosynthetic pathway for production of xylitol. The pathway consists of two NADPH-dependent reductases, xylose reductase (XR) and …
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Engineering a Fungal L-Arabinose Pathway Towards the Co-Utilization of Hemicellulosic Sugars for Production of Xylitol
… hemicellulosic pentose sugars D-xylose and L-arabinose from renewable plant biomass as feed substrates, my thesis research focused on utilizing a fungal-derived biosynthetic pathway for production of xylitol. The pathway consists of two NADPH-dependent reductases, xylose reductase (XR) and …
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CHEMICAL AND KINETIC STUDIES OF BACTERIAL TRANSPORT AND CHEMORECEPTOR PROTEINS
The L-arabinose-binding protein, an essential component of the high affinity L-arabinose transport system of Escherichia coli, forms a covalent adduct with the chromophoric probe 2-chloromercuri-4-nitrophenol (MNP) at a single site, cysteine residue 64. The addition of L-arabinose to MNP-modified …
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A SINGLE GUSTATORY RECEPTOR CAN SWITCH THE INCENTIVE SALIENCE OF A SPECIFIC REWARD
… when given the choice flies prefer to consume D-arabinose over L-arabinose, but more reliably form long-term memories of L-arabinose. Importantly, D- and L-arabinose are both innately attractive to hungry flies and non-nutritious. To understand the ecological, neuronal, and molecular basis of …
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Growth and metabolism of Aquaspirillum gracile
… investigated. Only D-glucose, D-galactose, and L-arabinose are attacked. The soluble portion of extracts of glucose-grown cells was found by spectrophotometric methods to contain enzyme activities characteristic of the Entner-Doudoroff and the Embden-Meyerhof-Parnas pathways. Much lower specific …
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The physiology of the genus bacillus
… the extent of glucose and d- and l-arabinose utilization in order to separate it from the other two factors influencing the pH change in the medium. The pH of the carbohydrate media employed was determined potentiometrically, using a glass electrode in order that the pH produced …
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In Vitro Synthetic Biology Platform and Protein Engineering for Biorefinery
… a 64% conversion yield, after 36 h at 45 °C. L-arabinose, a FDA-approved zero-calorie sweetener, was produced from D-xylose via a novel enzymatic pathway consisting of xylose isomerase, L-arabinose isomerase and xylulose 4-epimerase (Xu4E). Promiscuous activity of Xu4E, a monosaccharide …
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Discovery and characterization of pentose-specific transporters in Saccharomyces cerevisiae
… HPLC. Among the seven active transporters, one L-arabinose-specific and two D-xylose-specific transporters were identified. These transporters were functionally expressed and properly localized in S. cerevisiae as indicated by HPLC analysis and immunofluorescence microscopy, respectively. Kinetic …
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Investigating the loss of crystal structure in carbohydrate materials
… dependency group. The eleven compounds (D and L arabinose, fructose, glucose anhydrous, glucose monohydrate, lactose anhydrous, lactose monohydrate, maltose, sucrose, trehalose and xylose) that exhibited a very large difference in Tm onset (greater than 10°C) between the lowest (1°C/min) and …
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Metal-free syn-dihydroxylation of alkenes using malonoyl peroxides
… in the stereoselective synthesis of a 5-deoxy-L-arabinose derivative. Interaction of cyclopropyl malonoyl peroxide II with non-alkene nucleophiles is also discussed, and a novel allylic oxidation protocol using peroxide II is introduced. Chapter 4 discusses catalysis of the dihydroxylation …
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Design and synthesis of polymers for Corona Phase Molecular Recognition (CoPhMoRe) of carbohydrates
… polymer backbone structure, highly selective D-Arabinose sensor was developed and used to differentiate D-Arabinose from L-Arabinose for the first time. Finally we developed a glucose sensor that can measure glucose concentration instantaneously by detecting changes in local refractive index.
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XYLARIC ACID, D-ARABINARIC ACID (D-LYXARIC ACID), L-ARABINARIC ACID (L-LYXARIC ACID), AND RIBARIC ACID-1,4-LACTONE; SYNTHESIS AND ISOLATION - SYNTHESIS OF POLYHYDROXYPOLYAMIDES THEREFROM
… acid oxidation of the pentoses D-xylose, L-arabinose, D-arabinose, and D-ribose to produce xylaric acid, L-arabinaric acid (L-lyxaric acid), D-arabinaric acid (D-lyxaric acid), and ribaric acid, respectively, or salts therefrom. Isolation of the aldaric acids from nitric acid has proven …
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XYLARIC ACID, D-ARABINARIC ACID (D-LYXARIC ACID), L-ARABINARIC ACID (L-LYXARIC ACID), AND RIBARIC ACID-1,4-LACTONE; SYNTHESIS AND ISOLATION - SYNTHESIS OF POLYHYDROXYPOLYAMIDES THEREFROM
… acid oxidation of the pentoses D-xylose, L-arabinose, D-arabinose, and D-ribose to produce xylaric acid, L-arabinaric acid (L-lyxaric acid), D-arabinaric acid (D-lyxaric acid), and ribaric acid, respectively, or salts therefrom. Isolation of the aldaric acids from nitric acid has proven …
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Controlled Hybrid Material Synthesis using Synthetic Biology
… by addition of varying concentrations of L-arabinose. The presence of the surface protein allows the cells to bind nonliving nanoparticle substrates, effectively turning the cells into living crosslinkers. By using the living crosslinker, I was able to successfully synthesize a robust, …
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Cranberry metabolites with urinary anti-adhesion activity
… D-glucose backbone and possessing two D-xylose-L-arabinose side chains, was purified from the oligosaccharide mixture of active urine fractions in sufficient quantity to assign the full structure. Oligosaccharide mixtures of similar character were subsequently identified in cranberry products …
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Synthetic studies on the spiroacetal moiety of stenocarpin, a metabolite of Diplodia maydis
… model compounds led to commercially available L-arabinose as starting material. Two strategies, which differ in the timing for the formation of the spiroacetal moiety as well as the initial type of protecting groups, were employed in the development of the synthetic route. In the first route the …
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Defining D-Arabinose Metabolism in <i>Leishmania major</i> and <i>Crithidia fasciculata</i>
The metabolism of D-Arabinose (D-Ara) in eukaryotes is poorly understood. Arabinose (Ara) is one of the “rare” aldopentose sugars distributed in nature principally as a component of cell wall structures in plants and bacteria. Arabinose exists naturally in both pyranose and furanose conformations …
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The oxygen uptake by pseudomonas fluorescens on glucose, xylose, arabinose and acetate under varying conditions of substrate concentration and environmental temperature
… The substrates were D-glucose, D-xylose, L-arabinose and acetate, and the temperatures investigated ranged from 15 to 37 ºC. Oxygen uptakes were determined manometrically using the direct Warburg method in conjunction with resting cell techniques. In all tests 3.0 milligrams or Pseudomonas …
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Study of the aldopentoses and fucose in human urine by thin-layer chromatography
… and quantities of four free, monosaccharides, L- arabinose, D-xylose, D-ribose and (presumably -) fucose in the urine of healthy human subjects and of patients suffering from renal failure. • 2. Two new quantitative analytical procedures based on one - dimensional thin-layer chromatography have …
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