Abstract：
:The energy which simple-stomached livestock can derive from dietary plant material is limited by the lack of plant polysaccharide degrading enzymes in their gastro-intestinal (GI) tract and the inefficient microbial fermentation of such material in their hind-gut. In poultry the non-starch polysaccharides found in cereal grains can also impair normal digestive function as they form viscous gels in the GI tract inhibiting the breakdown and absorption of nutrients. The nutrition of such livestock could, therefore, be improved by the introduction of enzymes able to degrade plant polysaccharides in the small intestine. We describe the expression of a xylanase, XYLY', from the bacterium Clostridium thermocellum in mammalian cells and the exocrine pancreas of transgenic mice. The enzyme is synthesised, secreted and functionally active in the eukaryote system. This work demonstrates the feasibility of generating animals with the endogenous capacity to depolymerise the xylan component of hemi-cellulose.
journal_name
J Biotechnoljournal_title
Journal of biotechnologyauthors
Fontes CM,Ali S,Gilbert HJ,Hazlewood GP,Hirst BH,Hall Jdoi
10.1016/s0168-1656(99)00098-xsubject
Has Abstractpub_date
1999-06-11 00:00:00pages
95-101issue
1-2eissn
0168-1656issn
1873-4863pii
S0168-1656(99)00098-Xjournal_volume
72pub_type
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