2024-03-28T08:01:45Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1396252021-12-27T15:42:02Zcom_10261_15com_10261_6col_10261_268
00925njm 22002777a 4500
dc
van Kuijk, Sandra J. A.
author
Río Andrade, José Carlos del
author
Rencoret, Jorge
author
Gutiérrez Suárez, Ana
author
Sonnenberg, Anton S. M.
author
Baars, Johan J. P.
author
Hendriks, Wouter H.
author
Cone, John W.
author
2016-09-22
Background
The present work investigated the influence of lignin content and composition in the fungal treatment of lignocellulosic biomass in order to improve rumen degradability. Wheat straw and wood chips, differing in lignin composition, were treated with Lentinula edodes for 0, 2, 4, 8 and 12 wk and the changes occurring during fungal degradation were analyzed using pyrolysis-gas chromatography-mass spectrometry and detergent fiber analysis.
Results
L. edodes preferentially degraded lignin, with only limited cellulose degradation, in wheat straw and wood chips, leaving a substrate enriched in cellulose. Syringyl (S)-lignin units were preferentially degraded than guaiacyl (G)-lignin units, resulting in a decreased S/G ratio. A decreasing S/G ratio (wheat straw: r = −0.72, wood chips: r = −0.75) and selective lignin degradation (wheat straw: r = −0.69, wood chips: r = −0.88) were correlated with in vitro gas production (IVGP), a good indicator for rumen degradability.
Conclusions
L. edodes treatment increased the IVGP of wheat straw and wood chips. Effects on IVGP were similar for wheat straw and wood chips indicating that lignin content and 3D-structure of cell walls influence in vitro rumen degradability more than lignin composition.
Journal of Animal Science and Biotechnology 7:55, 14 pág. (2016)
http://hdl.handle.net/10261/139625
10.1186/s40104-016-0110-z
2049-1891
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100003339
27688879
Fungal treatment
In vitro rumen degradability
Lignocellulosic biomass
Py-GC/MS
Selective ligninolysis of wheat straw and wood chips by the white-rot fungus Lentinula edodes and its influence on in vitro rumen degradability