β-mannanase
Mannanase enzymes are endo-hydrolyases that are typically fermentation products of Bacillus spp . This enzyme typically degrades β-Mannans present in feed. β-Mannanases cleave randomly within the 1,4-β-D-mannan main chain of galactomannan, galactugluco-mannan, and mannan. Since β-endo-mannosidases improve the digestibility of all types of mannan, and because a major source of mannan in soya is the hull, the effect of β-mannosidase seems to be more pronounced when supplemented to diets containing SBM-44, which contains hulls, as opposed to SBM-48. Use of mannanases in feed has increased over the last two decades, constituting almost 10% of the overall enzymes used in corn-SBM poultry diets globally.