| 摘要 |
PURPOSE:To obtain the oligosaccharide useful as a functional food, etc., in high purity and yield by hydrolyzing water-insoluble hemicellulose, etc., of wheat bran with endoxiranase. CONSTITUTION:At least one of a water-insoluble hemicellulose prepared by extracting wheat bran with an alkali aqueous solution, a water-soluble and 60% ethanol-insoluble hemicellulose prepared by dissolving and separating water- soluble hemicellulose in 60% ethanol and at least one of a water-soluble and anion exchanger-non-adsorbing hemicellulose prepared by passing water-soluble hemicellulose through an anion exchanger and recovering non-adsorbing fractions is hydrolyzed with endoxiranase, followed by separating and recovering the objective oligosaccharide with an ultrafiltration membrane, an ion exchange resin, etc. |
