4a30 | Puratos | Endo-1,4-beta-xylanaseEC 3.2.1.8 | Additive composition:Preparation of endo-1,4-beta-xylanase produced by Bacillus subtilis LMG S-27588 having a minimum activity of: 500 ADXU/gSolid form and liquid formCharacterisation of the active substance:Endo-1,4-beta-xylanase produced by Bacillus subtilis LMG S-27588Analytical methodFor the quantification of endo-1,4-beta-xylanase activity in the feed additive:- colorimetric method measuring reducing sugars released by action of endo-1,4-beta-xylanase on beechwood xylan substrate in the presence of 3,5-dinitrosalicylic acid (DNS).
For the quantification of endo-1,4-beta-xylanase activity in premixtures and feedingstuffs:- colorimetric method measuring water soluble dye released by action of endo-1,4-beta-xylanase from azurine cross-linked arabinoxylan substrates.
| Chickens for fattening or reared for layingTurkeys for fattening or reared for breedingMinor poultry species for fattening or reared for laying or breeding | — | 100 ADXU | — | 1.In the directions for use of the additive and premixtures, the storage conditions and stability to heat treatment shall be indicated.2.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 and skin protection. | 26 August 2029 |