uronic acid

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Related to Uronic acids: aldonic acids

u•ron′ic ac′id

(yʊˈrɒn ɪk)

n.
any of a group of organic acids, as glucuronic acid, derived from oxidation of aldose sugars and occurring in urine.
[1920–25; < Greek oûron urine (compare uro-1) + -ic]
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References in periodicals archive ?
Iron(III) ions could be reduced to iron(II) ionic species and released in solution, and the remaining uronic acids residues would bind to a new iron(III) ionic species striking a balance.
The uronic acids assay: a method for the determination of chemical activity on biofilm EPS.
Stephen suggested that the polysaccharide components of the gum from peach tree belonged to the arabinogalactan group with amounts of arabinose, xylose, galactose, glucose, and uronic acids [5].
Compared to cranberry pomace, all extracts obtained with the microwave-assisted approach contained higher percentages of uronic acids and a lower percentage of neutral sugars, while maintaining similar proportions of arabinose and galactose.
In kernels of Sclerocarya birrea, uronic acids constituted more than 90% of both dietary fibre fractions.
Due to the significance of chemical analysis and to collect more data on the fibrous raw material in question, chemical characterization of the reed fibers was done by employing the following analyses: the extractive content in acetone (TAPPI T 280 [micro]m-99), total extractive content (TAPPI T 264cm-97-adapted), insoluble lignin (TAPPI T 222 om-98-adapted) and soluble TAPPI A 250) in acid, sugar composition (HPLC-PAD according to WALLIS et al., 1996), inorganic compounds (TAPPI T 211 and TAPPI T 244) and uronic acids (SUNDBERG et al., 1996).
Wave number/[cm.sup.-1] Assignments * 3434 O-H (stretching) 2927 C-H (stretching) 1645, 1542, 1398 C-O (bending vibrations of uronic acids) 1454, 1238 C-H (deformation) 979 pyranose ring 836 a-D-Glucopyranoside bond vibration 665 Se-O-C (asymmetric stretching) * Refer to [24, 25].
Carpita, "Measurement of uronic acids without interference from neutral sugars," Analytical Biochemistry, vol.