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Colorimetric determination of hexuronic acids in plant materials [PDF]
Analytical Chemistry, 1979 Ralph W. Scott
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An automated method for the determination of hexuronic acids
Analytical Biochemistry, 1965Abstract 1. 1. An automated method is deseribed for the determination of hexuronic acids based on the carbazole reaction. 2. 2. The borate modification was found to be superior because of the increased color yield and the reduced interference caused by the presence of NaCl. 3. 3.
D A Swann, Endre A Balázs, E A Balázs
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Analytical Biochemistry, 1975
Abstract Five naturally occurring hexuronic acids and several hexuronic acid-containing oligosaccharides were separated and identified by high voltage paper electrophoresis, using one of the following buffers. (i) Pyridine-acetic acid-water (1:10:89, by volume), the pH of which was adjusted to 2.3–3.5 with 98% formic acid.
Z Yosizawa, Zensaku Yosizawa
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Abstract Five naturally occurring hexuronic acids and several hexuronic acid-containing oligosaccharides were separated and identified by high voltage paper electrophoresis, using one of the following buffers. (i) Pyridine-acetic acid-water (1:10:89, by volume), the pH of which was adjusted to 2.3–3.5 with 98% formic acid.
Z Yosizawa, Zensaku Yosizawa
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The Methyl Ethers of Hexuronic Acids [PDF]
, 1954 Publisher Summary This chapter provides an overview of the methyl ethers of hexuronic acids. Hexuronic acid residues occur in a large number of different polysaccharides. The chapter focuses on the methyl ethers of the naturally occurring D-glucuronic, D-galacturonic, and D-mannuronic acids, and their derivatives.
G.O. Aspinall
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Conversion of hexuronic acid to hexaric acid [PDF]
, 2017 The present invention relates to a method and microbial host strain for converting a hexuronic acid to a hexaric acid. In particular, the invention relates to the con-version of D-galacturonic acid to meso-galactaric acid (mucic acid). The invention also concerns an isolated nucleotide sequence.
Boer, Harry +3 more
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Improved analytical method for the hexuronic acids at the reducing terminals of glycosaminoglycans
Journal of Proteomics, 1984When endo-uronidases act on glycosaminoglycans, the reaction products have hexuronic acid residues at the reducing terminals. An analytical method for hexuronic acids at the reducing terminals was devised for hyaluronate oligosaccharides having hexuronic acid residues at the reducing terminals.
Masahiko Endo +2 more
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A simple method for the detection and quantitative determination of hexuronic acids and pentoses
Analytical Biochemistry, 1974Abstract The present report describes a new and simple method for the detection and quantitative determination of pentoses and hexuronic acids either separately or in a mixture. The method involves treatment of the sample with sulfuric acid followed by the addition of harmine and then cysteine. Hexuronic acids produce a pink color with harmine, while
W S Allen +2 more
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On the formation of reductic acid from pentoses or hexuronic acids [PDF]
Carbohydrate Research, 1993 Abstract Careful hydrolysis of (±)- cis - or (±)- trans -tetrahydro-2,5-dimethoxy-2-furaldehyde dimethyl acetal proceeded via 5,5-dimethoxy-4-oxopentanal to give (±)- trans -4-hydroxy-5-methoxy-2-cyclopentenone and (±)- trans -4,5-dihydroxy-2-cyclopentenone.
Tania Ahmad +3 more
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Analytical Biochemistry, 1967
Abstract Two modifications of the carbazole reaction of hexuronic acids are described which differ from the original reaction by the concentration of acid, the temperature, and the duration of heating. The different hexosaminohexuronides show very different extinction coefficients in these two reactions which can be used for the differentiation of ...
Zacharias Dische, Z Dische
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Abstract Two modifications of the carbazole reaction of hexuronic acids are described which differ from the original reaction by the concentration of acid, the temperature, and the duration of heating. The different hexosaminohexuronides show very different extinction coefficients in these two reactions which can be used for the differentiation of ...
Zacharias Dische, Z Dische
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Determination of hexuronic acids in glycosaminoglycans by automated ion-exchange chromatography [PDF]
Analytical Biochemistry, 1976 Abstract This report describes a procedure for analyzing glucuronic and iduronic acids using the Technicon automated sugar chromatography system. Glueronic and iduronic acids of standard samples of glycosaminoglycans have been analyzed after hydrolysis by formic acid.
B, Radhakrishnamurthy +2 more
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