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Pàgina 1 des de 17 resultats
Enzymic Analysis of Feruloylated Arabinoxylans (Feraxan) Derived from Zea mays Cell Walls : II. Fractionation and Partial Characterization of Feraxan Fragments Dissociated by a Bacillus subtilis Enzyme (Feraxanase).
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Structural features of feruloylated arabinoxylan (feraxan) present in Zea mays L. (hybrid B 73 x Mo 17) coleoptile cell walls have been studied using a purified feraxan-dissociating enzyme (feraxanase) and an alpha-arabinofuranosidase. This experimental approach has demonstrated the following. (a)
High-performance liquid chromatography method for the characterization of rhamnolipid mixtures produced by pseudomonas aeruginosa UG2 on corn oil.
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A HPLC method was developed to quantify rhamnolipid species in a bacterial biosurfactant mixture. The biosurfactant mixtures containing mainly 3-[3'-(L-rhamnopyranosyl-oxy)decanoyloxy]decanoic acid (RhC10C10), 3-[3'-(2'-O-alpha-L-rhamnopyranosyl-oxy)decanoyloxy]decanoic acid (Rh2C10C10),
Pectic polysaccharide from corn (Zea mays L.) effectively inhibited multi-step mediated cancer cell growth and metastasis.
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Corn pectic polysaccharide (COPP) inhibited galectin-3 mediated hemagglutination at Minimum Inhibitory Concentration (MIC) of 4.08 μg/mL as opposed to citrus pectin (25 μg/mL), a well known galectin-3 inhibitor and lactose (4.16 μg/mL)--sugar specific to galectin-3. COPP effectively (72%) inhibited
Structural characterization of an arabinoxylan-rhamnogalacturonan complex from cell walls of Zea shoots.
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An arabinoxylan-rhamnogalacturonan complex, comprised of galacturonic acid, rhamnose, arabinose, xylose, and galactose in the ratios 75.9:4.6:5.2:3.5:5.4 and lesser amounts of other constituents, was dissociated from the water-insoluble matrix of cell walls of Zea mays by xylanase and
[Identification and characterization of Aspergillus aculeatus JMUdb058 for naringinase production].
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OBJECTIVE
A new naringinase-producing strain, JMUdb058 was identified and characterized.
METHODS
The strain was identified by morphological observation and 28S rDNA homogeneous analysis. Naringinase was identified by monitoring the hydrolysis of naringin to prunin and naringenin using a reversed
Leaf Stripe and Stem Rot Caused by Burkholderia gladioli, a New Disease of Maize in México.
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A new maize disease appeared in the State of Veracruz, Mexico during 2003-2004. Initial symptoms in the leaves were small, white-yellow, watery spots, which coalesced into dry necrotic stripes that were 0.3 wide and 8 cm long. Reddening sometimes developed on these leaves. Stems developed a rot in
First Report of Leaf Spot Disease of Maize Caused by Pantoea ananatis in Argentina.
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From 2007 to 2008, an uncharacterized disease of maize (Zea mays L.) was observed in commercial fields of Laguna Blanca, Formosa, Argentina and from different fields of Santa Fe and Catamarca provinces of Argentina. Symptoms included light-colored necrotic streaks on leaves and tan or white
Role of phenanthrene in rhamnolipid production by P. putida in different media.
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The role of phenanthrene in rhamnolipid production by P. putida in eight media with different culture conditions was investigated. Cultures using Fe2SO4.7H2O, KH2PO4, NH4Cl, yeast extract, glucose, and corn oil, with and without 200 mg l(-1) of phenanthrene, were evaluated under shaking for
Changes in cell wall polysaccharides associated with growth.
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Changes in the polysaccharide composition of Phaseolus vulgaris, P. aureus, and Zea mays cell walls were studied during the first 28 days of seedling development using a gas chromatographic method for the analysis of neutral sugars. Acid hydrolysis of cell wall material from young tissues liberates
[Production of sugar syrup containing rare sugar using dual-enzyme coupled reaction system].
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Enzymatic conversion is very important to produce functional rare sugars, but the conversion rate of single enzymes is generally low. To increase the conversion rate, a dual-enzyme coupled reaction system was developed. Dual-enzyme coupled reaction system was constructed using D-psicose-3-epimerase
Trabulsiella guamensis, a new genus and species of the family Enterobacteriaceae that resembles Salmonella subgroups 4 and 5.
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In 1985 the vernacular name Enteric Group 90 was coined for a small group of strains that had been referred to our laboratory as probable strains of Salmonella but did not agglutinate in Salmonella typing antisera. By DNA-DNA hybridization (hydroxyapatite method, 32P), seven strains of Enteric Group
Identification of Vibrio hollisae sp. nov. from patients with diarrhea.
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The name Vibrio hollisae (synonym = Special Bacteriology group EF-13) is proposed for a new group of 16 strains that occurred in stool cultures of patients with diarrhea. V. hollisae is a small gram-negative rod, which is motile with a single polar flagellum. No lateral or peritrichous flagella were
Plant growth promoting bacteria from cow dung based biodynamic preparations.
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Indigenous formulations based on cow dung fermentation are commonly used in organic farming. Three biodynamic preparations viz., Panchagavya (PG), BD500 and 'Cow pat pit' (CPP) showed high counts of lactobacilli (10(9) ml(-1)) and yeasts (10(4) ml(-1)). Actinomycetes were present only in CPP (10(4)
Identification and Characterization of Maize salmon silks Genes Involved in Insecticidal Maysin Biosynthesis.
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The century-old maize (Zea mays) salmon silks mutation has been linked to the absence of maysin. Maysin is a C-glycosyl flavone that, when present in silks, confers natural resistance to the maize earworm (Helicoverpa zea), which is one of the most damaging pests of maize in America. Previous
Preparation, characterization, and biological properties of β-glucans.
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β-Glucans are soluble fibers with physiological functions, such as, interference with absorption of sugars and reduction of serum lipid levels. β-glucans are found in different species, such as, Rhynchelytrum repens, Lentinus edodes, Grifola frondosa, Tremella mesenterica, Tremella aurantia, Zea
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