| 摘要 |
1320165 Sugar acids HAYASHIBARA CO 5 June 1970 [6 June 1969] 27387/70 Heading C2C [Also in Division C3] Mixtures of aldonic acids, comprising gluconic, maltobionic and maltotrionic acids with oligosaccharides and dextrins are prepared by oxidizing the hydrolysate produced by the action of an acid or enzyme on a starch, with glucosedehydrogenase. The glucose-dehydrogenase producing micro-organisms of the species Pseudomonas may be cultured on a medium containing a starch hydrolysate as a carbon source to oxidize the starch hydrolysate which may be a second starch hydrolysate solution or may be the starch which is undergoing enzymatic saccharification with simultaneous hydrolysis and oxidation. Pseudomonas graveolens and fragi may be used as the glucose-dehydrogenase producing micro-organisms and the starch hydrolysates may have starch sugars containing more than 50% maltose with a D.E. of preferably at least 50. Examples describe the treatment of high maltose syrups obtained by the liquefaction of a starch slurry with an acid or α-amylase followed by treatment with #-amylase and α-1,6- glucosidase. |
