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MALDI-TOF MS as a new means of characterizing condensed tannins in soil

AuthorsEngelke, Clemens J.; Knicker, Heike ; Kögel-Knabner, I.
Issue Date2003
PublisherAmerican Chemical Society
Citation225th ACS National Meeting: (2003)
AbstractCondensed tannins are plant polymeric polyphenols of high ecological importance, but their fate in soil is mostly unknown. Their ability to form complexes with proteins, thought to have a profound effect on the N-cycle in soil, is dependent on polymer length and polymer length distribution. Matrix-Assisted Laser Desorption/Ionisation Time-of-Flight (MALDI-TOF) mass spectrometry can be used to investigate tannin polymers without fragmentation and over a high mass range. Although successfully applied to fresh foliage unexpected difficulties in extracting and measuring tannins from soil were encountered. Data will be presented analysing the nature of this interference and tannin interactions with selected fractions of soil organic matter.
DescriptionComunicación oral 53 presentada en la Sesión: Molecular Studies of Soil Organic Matter, Novel Tools for Soil Analysis.-- Congreso celebrado del 23-27 de marzo 2003, en New Orleans, LA, USA.
Appears in Collections:(IRNAS) Comunicaciones congresos
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