Atmospheric immersion and vacuum impregnation of gallotannins and hydrolysed gallotannins from tara pods (Caesalpinia spinosa) mitigate acrylamide and enhances the antioxidant power in potato chips [PDF]
Food ChemistryThis research aimed to evaluate atmospheric pressure immersion (API) and vacuum impregnation (VI) of non -hydrolyzed and hydrolyzed tara gallotannins (TE and THE) extracts and the purification process by leaching with ethyl acetate (TE-L and THE-L) and ...
David Campos +2 more
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Oxidative evolution of (+)-catechin in model white wine solutions containing sulfur dioxide, ascorbic acid or gallotannins [PDF]
Food Research International, 2013 The effects of some antioxidant (sulfur dioxide, ascorbic acid (aa) and gallotannins) and their mixtures, on the oxidative evolution of model wines containing (+)-catechin, has have been compared by monitoring O2 consumption, browning development and (+)-
Fabio Chinnici, Claudio Riponi
exaly +2 more sources
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Determination of gallotannin with rhodanine
Analytical Biochemistry, 1988A reliable method for quantitative analysis of gallotannin in plants has been devised. Gallotannin is hydrolyzed with acid, and gallic acid in the hydrolysate is then assayed using rhodanine. This method is very specific; no interferences from other plant phenolics, including ellagic acid and condensed tannin, have been observed.
K H, Inoue, A E, Hagerman
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Enzymology of Gallotannin and Ellagitannin Biosynthesis
ChemInform, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
Ruth, Niemetz, Georg G, Gross
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1. It has been established that the semiacetal hydroxyls of the carbohydrate components of the tannins of the smoketree and of Turkish galls are substituted by galloyl residues and the C3 hydroxy group is free; on the other hand, in the tannins from sumac and Chinese galls all the hydroxy groups of the sugars are substituted by galloyl residues with ...
I. Sh. Buziashvili +4 more
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Bioactive Glucitol-Core Containing Gallotannins and other Phytochemicals from Silver Maple ( Acer saccharinum ) Leaves [PDF]
Natural Product Communications, 2017 In the course of our group\u27s investigation of members of the maple (Acer) genus, a series of glucitol-core containing gallotannins (GCGs) were isolated and identified (by NMR and HREISMS).
Abdullatif Bin Muhsinah +2 more
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Gallotannins. Part XIV. Structure of the gallotannins
Journal of the Chemical Society C: Organic, 1967Structures are suggested for the principal naturally occurring polyesters of gallic acid, based upon 1H n.m.r. spectroscopy. The mass-spectroscopic behaviour of methylated Chinese gallotannin is described.
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Gallotannins. Part XIII. The structure of Chinese gallotannin: evidence for a polygalloyl chain
Journal of the Chemical Society C: Organic, 1966Evidence is presented relating to the disposition of the depsidically linked galloyl groups on the penta-O-galloyl-β-D-glucose core of Chinese gallotannin. Interpretation of the n.m.r. spectra of methylated gallotannin fractions using the spectra of model depsides and several tri-O-methylgalloyl sugar derivatives permits the tentative formulation of ...
G. Britton +3 more
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Gallotannins and flavonoids from Haematoxylon campechianum
Phytochemistry, 1996Two new compounds, 2,6-bis-O-digalloyl-3-O-galloylglucose and 2-O-trigalloyl-1,3,4,6-tetrakis-O-galloylglucose, along with four known gallotannins, were isolated and identified from the leaves of Haematoxylon campechianum. In addition, four known flavonoid and three simple phenolic compounds were also detected.
F E, Kandil +4 more
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