| 摘要 |
It is intended to provide a method for producing a material which contains a xylooligosaccharide rich in xylobiose and xylotriose, an antioxidant active substance and dietary fiber and is useful as a food material or health supplement by a simple process efficiently at a low cost. A hemicellulose-containing plant resource such as bagasse is subjected to a steam blasting treatment (2.5 Mpa, 70 seconds) and wheat bran is mixed with this steam blasting-treated substance. After the water content of this mixture is adjusted to about 50%, koji is prepared with Aspergillus oryzae with a high xylanase activity obtained by single spore isolation from Aspergillus soya (NFRI1147). Water is added to the resulting koji and the steam blasting-treated substance is mixed with a koji dispersion in which the koji is dispersed in water and after the water content of this mixture is adjusted to about 50%, fermentation is carried out. A fermentation termination treatment is carried out after the fermentation and fine grinding is carried out after drying. As the steam blasting-treated substance to be mixed with the koji dispersion, an amount 8 to 10 times the steam blasting-treated substance used for the koji preparation is used. |
