Method for extraction and isolation of arabinoxylan products from debranned cereal

摘要

Method for the extraction and isolation of soluble arabinoxylan products, such as arabinoxylan, arabinoxylan-oligosaccharides, xylose, arabinose, ferulic acid and mixtures thereof from cereal grain, comprises partial debranning of whole cereal grains to obtain partially debranned cereal grains followed by roller milling the partially debranned cereal grains to obtain cereal bran. The method further comprises the mashing of at least part of the cereal bran in water optionally involving the treatment of the mash with any one of an enzyme preparation, an acid, a base, a peroxide or combinations thereof, either simultaneously or sequentially, to solubilise and optionally depolymerise a fraction of the arabinoxylan comprised in the cereal bran. The treatment is preferably done with an enzyme preparation containing an endoxylanase. The method further comprises the separation from the mash of a solubilised fraction, which comprises at least part of the solubilised soluble arabinoxylan products.