β-Mannanase production by Aspergillus niger BCC4525 and its efficacy on broiler performance.

Background: Mannan is a hemicellulose constituent commonly found in plant-derived feed ingredients. The gum-like property of mannan can obstruct digestive enzymes and bile acids, resulting in impaired nutrient utilisation. In this study, β-mannanase production by Aspergillus niger strain BCC4525 was investigated using several agricultural residues under solid state condition.

High-level production of thermotolerant β-xylosidase of Aspergillus sp. BCC125 in Pichia pastoris: characterization and its application in ethanol production.

A gene coding for thermotolerant β-xylosidase from Aspergillus sp. BCC125 was characterized. The recombinant enzyme was expressed in methylotrophic yeast Pichia pastoris KM71 and especially high yield of secreted enzyme was obtained.