An unprecedented anal. method that allows simultaneous structural and quant. characterization of all functional groups present in tannins is reported. In situ labeling of all labile H groups (aliph. and phenolic hydroxyls and carboxylic acids) with a phosphorus-contg. reagent (Cl-TMDP) followed by quant. 31P NMR acquisition constitutes a novel fast and reliable anal. tool for the anal. of tannins and proanthocyanidins with significant implications for the fields of food and feed analyses, tannery, and the development of natural polyphenolics contg. products.
Tannin Structural Elucidation and Quantitative 31P NMR Analysis. 2. Hydrolyzable Tannins and Proanthocyanidins / Melone, F., Saladino, R., Crestini, C.. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - 61:39(2013), pp. 9316-9324. [DOI:10.1021/jf401664a]
Tannin Structural Elucidation and Quantitative 31P NMR Analysis. 2. Hydrolyzable Tannins and Proanthocyanidins
Saladino R;
2013
Abstract
An unprecedented anal. method that allows simultaneous structural and quant. characterization of all functional groups present in tannins is reported. In situ labeling of all labile H groups (aliph. and phenolic hydroxyls and carboxylic acids) with a phosphorus-contg. reagent (Cl-TMDP) followed by quant. 31P NMR acquisition constitutes a novel fast and reliable anal. tool for the anal. of tannins and proanthocyanidins with significant implications for the fields of food and feed analyses, tannery, and the development of natural polyphenolics contg. products.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
