Effect of fungal treatments of fibrous agricultural by-products on chemical composition and in vitro rumen fermentation and methane production
► A fungus–substrate interaction was observed on nutritional values of fibrous by-products. ► Nutritional improvement by some fungi linearly increased with the level of lignin in substrates. ► Pleurotus ostreatus is an effective lignin degrader but could not improve the nutritive value of fibrous by...
Saved in:
Published in | Bioresource technology Vol. 129; pp. 256 - 263 |
---|---|
Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Kidlington
Elsevier Ltd
01.02.2013
Elsevier |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | ► A fungus–substrate interaction was observed on nutritional values of fibrous by-products. ► Nutritional improvement by some fungi linearly increased with the level of lignin in substrates. ► Pleurotus ostreatus is an effective lignin degrader but could not improve the nutritive value of fibrous by-products. ► Treatment of oil palm fronds with Ceriporiopsis subvermispora reduced methane emission from rumen fermentation.
Maize stover, rice straw, oil palm fronds and sugarcane bagasse were treated with the white-rot fungi Ceriporiopsis subvermispora, Lentinula edodes, Pleurotus eryngii, or Pleurotus ostreatus at 24°C for 0–6weeks. The fungi increased total gas production from oil palm fronds by 68–132%, but none of the fungi improved the in vitro rumen fermentability of maize stover. C. subvermispora and L. edodes increased total gas production of sugarcane bagasse by 65–71%, but P. eryngii and P. ostreatus decreased it by 22–50%. There was a linear relationship (P<0.05) between the proportion of lignin in the original substrate and the increase in in vitro gas production observed for C. subvermispora and L. edodes treatments (R2=0.92 and 0.96, respectively). It is concluded that C. subvermispora and L. edodes have a particularly high potential to improve the nutritive value of highly lignified ruminant feeds. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0960-8524 1873-2976 |
DOI: | 10.1016/j.biortech.2012.10.128 |