Fate of tannins in Corsican pine litter.
J Chem Ecol
; 32(12): 2709-19, 2006 Dec.
Article
en En
| MEDLINE
| ID: mdl-17111221
Tannins are ubiquitous in higher plants and also in litter and soils where they affect many biogeochemical processes. Despite this well-recognized role, their fate in litter and mineral soils is hardly known, as often only trace amounts, if any, are measured. In this study, we conducted an incubation experiment with Corsican pine litter to which known amounts of tannic acid (TA) or condensed tannins (CTs) from Corsican pine were added. Using Folin-Ciocalteu as a measure for total phenolics and HCl-butanol as an assay specific for CTs, acetone/water extractable phenolics and tannins decreased with time towards very low levels. Application of thermally assisted hydrolysis and methylation to litter before and after acetone/water extraction revealed that TA concentration decreased. By contrast, CTs remained to a great extent in the litter and could not be extracted suggesting that they were tightly bound.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Taninos
/
Pinus
País/Región como asunto:
Europa
Idioma:
En
Revista:
J Chem Ecol
Año:
2006
Tipo del documento:
Article
País de afiliación:
Países Bajos
Pais de publicación:
Estados Unidos