| abstract |
PURPOSE: To easily obtain the subject compound with a small-sized apparatus by removing starch from cereal bran, etc., with a heat-stable amylase in the presence of hot water, extracting in alkaline state, etc., and neutralizing and desalting the obtained liquid containing the fraction of water-soluble hemicellulose B. n CONSTITUTION: A heat-stable amylase is added to a raw material such as rice bran, wheat bran or grain hull in the presence of hot water and subjected to the starch-removing treatment preferably with a homomixer or colloid mill. The treated raw material free from starch is extracted in alkaline or Acidic state preferably with an extruder, colloid mill or homomixer. The obtained liquid containing a fraction of water-soluble hemicellulose B is subjected to neutralizing and desalting treatment preferably with an ultrafiltration membrane, electrodialysis membrane, ionexchange resin or reverse osmosis membrane to obtain the objective hemicellulose. n COPYRIGHT: (C)1990,JPO&Japio |