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US 5,458,893 AGranted
Process for treating water-soluble dietary fiber with beta-glucanase
AssigneeThe Quaker Oats Company
InventorJohn J. Smith
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AssigneeThe Quaker Oats Company
InventorJohn J. Smith
Estimating the term…
The present invention relates to an improved process for producing a beta-glucanase treated water-soluble dietary fiber composition wherein an aqueous dispersion of a gelatinized, milled, beta-glucan containing grain-based substrate is treated with an alpha-amylase under conditions which will hydrolyze said substrate and yield a soluble fraction and an insoluble fraction, separating said soluble fraction from said insoluble fraction, and recovering from said soluble fraction said water-soluble dietary fiber substantially free of water-insoluble fiber, wherein the improvement comprises treating beta-glucans released from the grain-based substrate with beta-glucanase, wherein the weight ratio of beta-glucanase to initial beta-glucan containing substrate is in the range of from about 4.times.10.sup.-6 :1 to about 2.times.10.sup.-2:1 (beta-glucanase:grain-based substrate), and wherein the treatment of the beta-glucans with the beta-glucanase is carried out at a temperature in the range of from about 30.degree. C. to about 60.degree. C., for a period of time in the range of from about 5 to about 120 minutes, and at a pH in the range of from about 5 to about 7. The present invention further comprises dietary fiber compositions produced by the above-described process, edible food compositions containing the dietary fiber compositions produced by the above-described process, and a method for preparing said edible food compositions.
In a process for producing a beta-glucanase treated water-soluble dietary fiber composition wherein an aqueous dispersion of a gelatinized, milled, beta-glucan containing grain is treated with an alpha-amylase under conditions which will hydrolyze said grain and yield a soluble fraction and an insoluble fraction, separating said soluble fraction from said insoluble fraction, and recovering from said soluble fraction said water-soluble dietary fiber substantially free of water-insoluble fiber, wherein the improvement comprises treating beta-glucans released from the grain with beta-glucanase, wherein the weight ratio of beta-glucanase to initial beta-glucan containing grain is in the range of from about 4.times.10.sup.-6 :1 to about 2.times.10.sup.-2 :1 (beta-glucanase:grain), and wherein the treatment of the beta-glucans with the beta-glucanase is carried out at a temperature in the range of from about 30.degree. to about 60.degree. C., for a period of time in the range of from about 5 to about 120 minutes, and at a pH in the range of from about 5 to about 7.
An edible composition comprising edible ingredients and a beta-glucanase treated water-soluble dietary fiber composition ingredient, wherein said beta-glucanase treated water-soluble dietary fiber composition is prepared by a method comprising treating an aqueous dispersion of a gelatinized, milled, beta-glucan containing grain with an alpha-amylase under conditions which will hydrolyze said grain and yield a soluble fraction and an insoluble fraction, separating said soluble fraction from said insoluble fraction, and recovering from said water-soluble dietary fiber substantially free of water-insoluble fiber, wherein beta-glucans released from the grain are treated with beta-glucanase, wherein the weight ratio of beta-glucanase to initial beta-glucan containing grain is in the range of from about 4.times.10.sup.-6 :1 to about 2.times.10.sup.-2 :1 (beta-glucanase:grain, and wherein the treatment of the beta-glucans with the beta-glucanase is carried out at a temperature in the range of from about 30.degree. to about 60.degree. C., for a period of time in the range of from about 5 to about 120 minutes, and at a pH in the range of from about 5 to about 7.
Dependencies are inferred from the claim text.