Indigestable dextrin
AssigneeMatsutani Chemical Industries Co., Ltd.
InventorsKazuhiro Ohkuma, Yoshio Hanno, Kazuyuki Inada, Isao Matsuda, Yasuo Katta
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Abstract
An indigestible dextrin characterized in that the dextrin is prepared by heat-treating potato starch with addition of hydrochloric acid thereto to obtain a pyrodextrin, hydrolyzing the pyrodextrin with alpha-amylase and glucoamylase and removing at least one-half of glucose formed from the resulting hydrolyzate, and comprises a fraction other than glucose.
Claims14
An indigestible dextrin characterized in that the dextrin is prepared by heat-treating potato starch with addition of hydrochloric acid thereto to obtain a pyrodextrin, hydrolyzing the pyrodextrin with alpha-amylase and glucoamylase and removing at least one-half of glucose formed from the resulting hydrolyzate, and comprises a fraction other than glucose,
- (A) said fraction containing at least 80% of an indigestible component,
- (B) said Fraction containing 30 to 35% of glucose residues having a 1.fwdarw.4 glycosidic linkage only,
- (C) said fraction having a number average molecular weight of 510 to 965,
- (D) said fraction having a number average molecular weight Y calculated 1 the equation:
- Y=-293+106.004.multidot.X
- wherein X is the amount (in % based on said fraction) of glucose residues having both 1.fwdarw.4 and 1.fwdarw.6 glycosidic linkages as quantitatively determined by "Hakomori's methylation method," said calculated value Y being in the range of variations of up to 20% from the number average molecular weight as actually measured,
- (E) the ratio of the weight average molecular weight of said fraction to the number average molecular weight thereof being at least 25:1.
Dependencies are inferred from the claim text.