Please use this identifier to cite or link to this item:
|Statistics||SHARE CORE MendeleyBASE||
|Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL|
Digestibility of silages in relation to their hydroxycinnamic acid content and lignin composition
|Authors:||Taboada, Alfredo; Novo-Uzal, Esther; Flores, Gonzalo; Loureda, María; Barceló, Alfonso Ros; Masa Vázquez, Antón ; Pomar, F.|
|Keywords:||In vivo digestibility|
|Publisher:||John Wiley & Sons|
|Citation:||Journal of the Science of Food and Agriculture 90 (7): 1155- 1162 (2010)|
|Abstract:||BACKGROUND: The effectiveness of the analysis of cell wall-bound hydroxycinnamic acids and the composition of lignin to evaluate the in vivo digestibility of a silage collection with unknown botanical composition was evaluated.|
RESULTS: Syringyl units content and total etherified phenols showed the highest correlation coefficients with in vivo dry matter digestibility (IVDMD) (r = − 0.792 and r = − 0.703, respectively), while guaiacyl units and total phenols showed the highest correlation coefficients with in vivo organic matter digestibility (IVOMD) (r = − 0.871 and r = − 0.817, respectively). Using the above-mentioned chemical parameters, 10 equations were also developed to predict in vivo digestibility. The prediction of IVDMD produced a high adjusted R2 value (0.710) using syringyl, total lignin, etherified total phenols, esterified ferulic acid and total phenol content as predictors. The prediction of IVOMD produced a higher adjusted R2 value (0.821) using guaiacyl, total phenols, total ferulic acid and etherified p-coumaric acid content as predictors.
CONCLUSION: Cell wall digestibility depends on a multiplicity of factors and it is not possible to attribute a causal effect on in vivo digestibility to any single factor. However, syringyl and guaiacyl content and etherified phenols emerge as good predictors of digestibility.
|Publisher version (URL):||http://dx.doi.org/10.1002/jsfa.3933|
|Appears in Collections:||(MBG) Artículos|