Increasing the feed value of forestry waste by ammonia freeze explosion treatment

Ammonia freeze explosion treatment decreased the lignin content of aspen twigs and chips by 30% and aspen bark by 20%. This resulted in increased accessibility of lignocellulose to enzyme hydrolysis and increased the in vitro digestibility of the woody material. The residual ammonia in the substrate...

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Bibliographic Details
Published in:Biological wastes 1988, Vol.25 (2), p.149-153
Main Authors: Tengerdy, Robert P., Nagy, Julius G.
Format: Article
Language:English
Subjects:
feed rations
feed supplements
forest products industry
in vitro digestibility
nutrient improvement
roughage
waste treatment
waste utilization
wastes
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Summary:Ammonia freeze explosion treatment decreased the lignin content of aspen twigs and chips by 30% and aspen bark by 20%. This resulted in increased accessibility of lignocellulose to enzyme hydrolysis and increased the in vitro digestibility of the woody material. The residual ammonia in the substrate increased the crude protein feed value from 0 to 12–20%. The treated aspen waste may be used as a roughage component of ruminant diet.
ISSN:0269-7483
DOI:10.1016/0269-7483(88)90105-X