Download beta-glucanase

EN
ANNEX
Identification
number of
the additive
Minimum
content
Name of the
holder of
authorisation
Additive
Composition, chemical formula,
description, analytical method
Species or
category of
animal
Maximum age
Maximu
m content
Units of activity /kg of
complete feedingstuff
with a moisture
content of 12%
Other provisions
End of
period of
authorisation
Category of zootechnical additives. Functional group: digestibility enhancers.
4a1621i
Kemin Europa
NV
Endo-1,3(4)-betaglucanase EC
3.2.1.6
Endo-1,4-betaglucanase EC
3.2.1.4
Alpha-amylase
EC 3.2.1.1
Endo-1,4-betaxylanase EC
3.2.1.8
1
2
3
Additive composition
Preparation of:
- endo-1,3(4)-beta-glucanase produced
by Aspergillus aculeatinus (formerly
classified as Aspergillus aculeatus)
(CBS 589.94),
- endo-1,4-beta-glucanase produced by
Trichoderma
reesei
(formerly
classified
as
Trichoderma
longibrachiatum) (CBS 592.94),
- alpha-amylase produced by Bacillus
amyloliquefaciens (DSM 9553),
- endo-1,4-beta-xylanase produced by
Trichoderma viride (NIBH FERM
BP4842) having a minimum activity
of:
- endo-1,3(4)-beta-glucanase:
10 000
U1/g,
- endo-1,4-beta-glucanase:
310 000 U2/g,
- alpha-amylase: 400 U3/g,
All avian
species
-
1,3(4)betaglucanase
500 U
Endo-1,4betaglucanase
15 500 U
Alphaamylase
20 U
Endo-1,4betaxylanase
10 500 U
-
1.
2.
In the directions for use
of the additive and
premixture the storage
conditions and stability
to pelleting shall be
indicated.
For users of the additive
and premixtures, feed
business operators shall
establish
operational
procedures
and
organisational measures
to address potential risks
resulting from its use.
Where
those
risks
cannot be eliminated or
reduced to a minimum
by such procedures and
measures, the additive
and premixtures shall be
used
with
personal
protective
equipment,
including
breathing
1 U is the amount of enzyme which liberates 0,0056 micromoles of reducing sugars (glucose equivalents) from barley beta-glucan per minute at pH 7,5 and 30 °C.
1 U is the amount of enzyme which liberates 0,0056 micromoles of reducing sugars (glucose equivalents) from carboxymethylcellulose per minute at pH 4,8 and 50 °C.
1 U is the amount of enzyme which hydrolyses 1 micromole of glucosidic linkages from water insoluble cross-linked starch polymer per minute at pH 7,5 and 37 °C.
1
[10 years
from the
date of entry
into force of
this
Regulation
To be
completed
by the
Service
responsible
for the
publication]
- endo-1,4-beta-xylanase: 210 000 U4/g.
Liquid form
-------------------------------Characterisation
of
the
active
substance:
- endo-1,3(4)-beta-glucanase produced
by Aspergillus aculeatinus (CBS
589.94),
- endo-1,4-beta-glucanase produced by
Trichoderma reesei (CBS 592.94),
- alpha-amylase produced by Bacillus
amyloliquefaciens (DSM 9553),
- endo-1,4-beta-xylanase produced by
Trichoderma viride (NIBH FERM
BP4842).
5
protection.business
operators shall establish
operational procedures
and
organisational
measures to address
potential risks resulting
from its use. Where
those risks cannot be
eliminated or reduced to
a minimum by such
procedures
and
measures, the additive
and premixtures shall be
used
with
personal
protective
equipment,
including
breathing
protection.
Analytical method
For the determination in feed additive of:
- endo-1,3(4)-beta-glucanase in the feed
additive: colorimetric method based on
the enzymatic hydrolysis of glucanase
on the barley beta-glucan substrate at
pH 7.5 and 30oC,
- endo-1,4-beta-glucanase in the feed
additive: colorimetric method based on
the enzymatic hydrolysis of cellulase
on the carboxylmethylcellulose at pH
4.8 and 50oC,
- alpha-amylase in the feed additive:
colorimetric method based on the
formation of water soluble dyed
fragments produced by the action of
amylase on azurine cross-linked starch
polymer substrates at pH 7.5 and 37oC,
- endo-1,4-beta-xylanase in the feed
additive: colorimetric method based on
the enzymatic hydrolysis of xylanase
on the birchwood xylane substrate at
4
5
1 U is the amount of enzyme which liberates 0,0067 micromoles of reducing sugars (xylose equivalents) from birchwood xylan per minute at pH 5,3 and 50 °C.
Details of the analytical methods are available at the following address of the Reference Laboratory: https://ec.europa.eu/jrc/en/eurl/feed-additives/evaluation-reports
2
pH 5.3 and 50oC.
For the determination in premixtures and
feedingstuffs of:
- endo-1,3(4)-beta-glucanase: plate test
method based on the glucanase
diffusion
and
the
subsequent
decolouring of the red agar medium
due to the beta-glucan hydrolysis,
- endo-1,4-beta-glucanase: colorimetric
method based on the quantification of
the water soluble dye fragments
produced by the action of cellulase on
azurine cross-linked water insoluble
HE-cellulose substrate,
- alpha-amylase: colorimetric method
based on the formation of water
soluble blue fragments produced by
the action of amylase on azurine crosslinked insoluble blue-coloured starch
polymer substrates,
- endo-1,4-beta-xylanase: colorimetric
method based on the quantification of
water
soluble
dyed
fragments
produced by the action of xylanase on
azurine
cross-linked
wheat
arabinoxylan.
3