1 TXU is the amount of enzyme which liberates 5 micromole of reducing sugars (xylose equivalents) from wheat arabinoxylan per minute at pH 3,5 and 55 °C.    ,
    Details of the analytical methods are available at the following address of the Reference Laboratory: http://irmm.jrc.ec.europa.eu/EURLs/EURL_feed_additives/Pages/index.aspx’    ,



4a62,BASF SE,  Endo-1,4-beta-xylanase    EC 3.2.1.8  ,     Additive composition     Preparation of endo-1,4-beta-xylanase produced by Aspergillus niger (CBS 109.713) having a minimum activity of:      solid form: 5 600 TXU /g      liquid form: 5 600 TXU/ml         Characterisation of the active substance     Endo-1,4-beta-xylanase produced by Aspergillus niger (CBS 109.713)       Analytical method      Viscosimetric method based on decrease of viscosity produced by action of endo-1,4-beta-xylanase on the xylan-containing substrate (wheat arabinoxylan) at pH 3,5 and 55 °C    ,Chickens for fattening,—,280 TXU,—,  1.   In the directions for use of the additive and premixture, indicate the storage temperature, storage life and stability to pelleting.     2.   Recommended maximum dose per kilogram of complete feedingstuff for chickens for fattening and ducks: 800 TXU.     3.   For use in feed rich in starch and non-starch polysaccharides (mainly beta-glucans and arabinoxylans).   ,7.12.2019,
Ducks,280 TXU,