Skip to Main content Skip to Navigation
Journal articles

Microstructure elucidation of polyflavonoid tannins by MALDI-TOF-CID

Abstract : High molar mass wood tannin extracts are complex mixtures that are distributed in both molar mass and chemical composition. Condensed tannins from quebracho and mimosa woods were analyzed and compared with cacao tannins using matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectrometry. Although MALDI-TOF MS reveals the oligomer structure of the tannins, this method cannot distinguish between isomers with isobaric masses, and therefore, ambiguous structural assignments were made in a number of cases. To determine the actual microstructures present, MALDI-TOF collision-induced dissociation (CID) experiments were conducted. MALDI-TOF-CID enables monomer sequence determination, and positive assignments of isobaric structures can be made.
Document type :
Journal articles
Complete list of metadatas

https://hal.univ-lorraine.fr/hal-01593754
Contributor : Lermab Ul <>
Submitted on : Tuesday, September 26, 2017 - 4:25:24 PM
Last modification on : Tuesday, March 20, 2018 - 10:17:39 AM

Links full text

Identifiers

Collections

Citation

Nonhlanhla Radebe, Karsten Rode, Antonio Pizzi, Harald Pasch. Microstructure elucidation of polyflavonoid tannins by MALDI-TOF-CID. Journal of Applied Polymer Science, Wiley, 2013, 127 (3), pp.1937-1950. ⟨10.1002/app.37568⟩. ⟨hal-01593754⟩

Share

Metrics

Record views

208