Appeal No. 2006-0151 Page 2
Application No. 09/753,381
the nutritional value of feed formulations that have high inclusion levels of small grain
cereals such as wheat and barley, in addition to high fiber material such as sunflower,
rape seed, peas and beans” (Specification, pages 1-2).
“The present invention adds a biosurfactant, specifically lecithin and/or
lysolecithin, to animal feed formulations to boost the effect of exogenous enzymes and
thereby reduce the level of such enzymes that must be added to the feed while
maintaining [their] effectiveness” (id., page 2). “[W]hen [ ] lysophospholipid/phospholipid-
type surfactants are used, a reduction of up to 50% of the enzymes used in the feed can
be made without a degradation in the desired effect of the enzymes” (id., page 3).1
The Claims
Claims 1, 10 and 13 are representative:
1. A method for improving the degradation by an exogenous enzyme of the
neutral detergent fiber in an animal feed, comprising the step of adding to an animal feed
containing the exogenous enzyme a surfactant selected from the group consisting of
lecithins that have been enzymatically enriched in the amounts of lysophospholipids to
contain at least 5% by weight of lysophospholipids to the amount of lysophospholipids
plus phospholipids.
10. A method as defined in claim 1, wherein the degradation of neutral detergent
fiber is increased by at least about 50% over neutral detergent fiber degradation by the
exogenous enzyme alone.
13. A method of reducing the amount of exogenous enzyme required to achieve
a preselected level of degradation of neutral detergent fiber in an animal feed,
comprising the step of adding to the animal feed an exogenous enzyme selected from
the group consisting of α-amylase, α-galactosidase, β-glucanase, cellulase, lipase and
xylanase; a protease; and a surfactant selected from the group consisting of lecithins
that have been enzymatically enriched in the amounts of lysophospholipids to contain at
least 5% by weight of lysophospholipids to the amount of lysophospholipids and
phospholipids, and wherein the amount of the exogenous enzyme added is reduced by
up to about 50% without a reduction in degradation of neutral detergent fiber.
1 Lysolecithin is a lecithin that has been enriched in lysophospholipids through enzymatic hydrolysis.
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