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Showing 1 to 20 of 34 for “"Glucosides"”.
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Synthesis of Dicamba Glucosides for the Study of Environmental Dicamba Drift Effects on Soybeans
… this spraying. We sought to prepare the dicamba glucosides, DCSA-glucoside, DCGA-glucoside, and 5-OH dicamba-glucoside standards for LC/MS/MS analysis. Pure samples of these glucosides will provide a reference point in which to study how genetically modified plants metabolize dicamba. Efforts to …
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Benzophenone Derivatives of Hexitols in tthe Carbohydrate Series
… for this purpose. |For example, compounds of glucosides with aromatic aldehydes were synthesized by Ekenstein and Blanksma. These compounds were of interest because the aromatic group can be easily split off from their acetal unions through catalytic reaction. The aromatic glucosides with …
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A study of compounds having antibacterial activity isolated from Rubus pinfaensis Levl. et Vant.
… The other new glucosides could be differentiated by their UV spectra, with one showing absorbance due to the presence of a conjugated diene. These glucosides were converted to methyl triacetoxy derivatives, from which the parent structures were established as …
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Comparison of dose-dependent outcomes in induction of cytogenotoxic responses by novel glucosyl flavonoids
The flavonoids quercetin, and its glucosides isoquercetin and rutin, are phytochemicals commonly consumed in plant-derived foods. They are associated with potential health-promoting effects such as anti-inflammation, anti-viral, anti-carcinogenesis, neuro- and cardio-protection, etc. Semi-synthetic …
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Investigation of the Luminol Chemiluminescence Reaction as a Post-Column Reaction Detector for HPLC
… of a method for the determination of $\beta$-D-glucosides using immobilized enzymes and luminol CL detection of the enzymatically generated hydrogen peroxide.
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Maize β-glucosidase substrate specificity and natural substrates
… also function in the metabolism of phytohormone glucosides and glucosides of other secondary plant products. Maize (Zea mays L.) β-glucosidase is a homodimer of 60 KD monomers and occurs in the plastid. Numerous glycosides were tested as substrates and K<sub>m</sub>'s and V<sub>m</sub>'s were …
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Characterization of a Beta-glucosidase Aggregating Factor Responsible for the Null Beta-glucosidase Phenotype in Maize (Zea mays L.)
… catalyzes the hydrolysis of aryl and alkyl β-D-glucosides as well as glucosides with a carbohydrate moiety such as cellobiose and other beta-linked oligosaccharides. In maize (Zea mays L.), β-glucosidase exists as 120 kD homodimers, but also forms high-molecular-weight (HMW) aggregates in …
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Mechanism of Substrate Specificity and Catalysis in Retaining β-Glucosidases From Maize and Sorghum
… catalyze the hydrolysis of aryl and alkyl β-D-glucosides as well as glucosides with a carbohydrate moiety. The maize β-glucosidase isozymes Glu1and Glu2 hydrolyze a broad spectrum of substrates in addition to its natural substrate DIMBOAGlc, while the sorghum β-glucosidase Dhr1 (dhurrinase-1) …
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ΜΕΛΕΤΗ ΤΩΝ ΧΗΜΙΚΩΝ ΣΥΣΤΑΤΙΚΩΝ ΤΟΥ ΦΥΤΟΥ CYCLAMEN GRAECUM L
… THE FLAVONOIDS ARE FOUR GLUCOSIDES OF DIHYDROKAEMPFEROL (3-0- GALACTOSIDE, 3-0-GLU 3-0-GALACTOSYL-GLUCOSIDE AND 3-0-GLUCOSYL- GLUCOSIDE) AND THE QUENKETIN-3-0-GLUCO IN THE LEAVES HAVE BEEN IDENTIFIED THE FLAVONOIDS: QUERKETIN-3-0-GALACTOSIDE (HYPERIN) …
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Substituted aryl glycosides as probes of the mechanism of spontaneous ad enzyme-catalyzed glycoside hydrolysis
… rates of spontaneous hydrolysis of the DNP glucosides followed the trend 4-deoxy > 3-deoxy - 6-deoxy > parent > 6-deoxy-6-fluoro > 3-deoxy-3-fluoro > 4-deoxy-4-fluoro > 2-deoxy-2-fluoro. These relative rates can be rationalized on the basis of the stabilities of the oxocarbonium ions …
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Studies on maize beta glucosidase gene-enzyme system
… and also the catabolism of various ß-D-glucosides. The enzyme expressed in maize sporophytes is encoded by a highly polymorphic locus, Glul (chromosome 10). In the present study, maize ß-glucosidase was purified to homogeneity by using differential solubility and chromatography. The …
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Crystallisation and crystal forms of carbohydrate derivatives
… by oxidation of the primary alcohol groups of glucosides to the carboxylic acid derivatives, to increase functionality for enhanced crystal growth. Chapter Three reports on the synthesis of glucopyranoside derivatives by O-glycosylation reactions and displays crystal structures, including a …
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Towards novel luminescent probes for monitoring β- galactosidase activity
… out the investigation. A number of novel methyl glucosides, functionalised with a naphthyl moiety at C6 of the sugar, were prepared. These were then used as glycosyl acceptors to make disaccharides (lactose analogues), with the enzyme (functioning in reverse) catalysing the glycosylation. The …
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GENETIC MANIPULATION OF CYTOKININ LEVELS IN NEW PLANT TYPE RICE
… CKs (CK bases and ribosides), storage CKs (CK O-glucosides), inactive CKs (CK-7-Nglucosides and CK-9-N-glucosides), cis-zeatin and its derivative CKs. The results showed that it is not the actual content of CKs but the changes in dynamics of CKs which are decisive for fast senescence. The grain …
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Microbial production and consumption of marine dissolved organic matter
… related to metabolism of carboxylic acids and glucosides, increased gene expression related to proteorhodopsin-based phototrophy, and decreased gene expression related to motility. Putative identification of compounds present in Prochlorococcus-derived DOM supported these responses. …
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Understanding the molecular mechanism of postharvest seed coat darkening in pinto beans
… PvMATE8 is able to transport epicatechin-3´-O-glucosides, not epicatechin aglycons from cytosol to the vacuole and thus ensuring substrate flow to maintain a feedback regulation for upstream epicatechin biosynthesis. Knowing the mechanism and committed steps of the PA pathway will not only help …
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Development of a standardized functional soy product for cancer prevention trials:Phase II evaluation of isoflavone bioavailability in men with asymptomatic prostate cancer
… type, the isoflavones occurred predominantly as glucosides while in the other soy bread the isoflavone existed predominantly as aglycones (potentially most active and more readily absorbed). We hypothesized the aglycone-rich soy-almond bread compared to the glycoside-rich soy bread would provide …
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CONSUMER SATISFACTION, LANGUAGE USE, AND MARKETING TO WOMEN IN THE NEW YORK STATE BEER INDUSTRY AND ANTHOCYANIN PROFILES OF COMMERCIALLY IMPORTANT HYBRID GRAPE CULTIVARS
… were found to have much lower percentage of mono-glucosides than hybrid cultivars. Hybrid cultivars in general had a greater diversity of species of anthocyanins identified within each sample.
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