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Method for preparing low d.e. starch hydrolyzates

Assignee: Primary Products Ingredients Americas LLC
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Filing: 1968-10-30
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Granted: 1971-10-26
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Expires: 1988-10-30
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Abstract

Abstract Aqueous starch paste is acid converted to a hydrolyzate having a dextrose equivalent constant (D.E.) in the range of from about 8 to about 16 percent, then after removal of any insoluble fatty material present, the acid hydrolyzate is cooled for at least 1 hour at a temperature below about 60* F., e.g., in the range of from about 32* F. to about 50* F., and precipitated material formed then is separated from the chilled hydrolyzate liquor. The resultant hydrolyzates, as well as hydrolyzates formed by slight alpha-amylase conversion of the resultant liquor, form aqueous syrups having excellent stability against haze formation. The lower D.E. hydrolyzates produced also are essentially nonsweet and nonhygroscopic.

Inventors

  • 👤 Robert E Nisbet
  • 👤 Ernest E Allen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 18:07
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/14; A; A23; A23L; A23L29/00; A23L29/30; A23L29/35

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 42 words
The method according to claim 1 wherein the hydrolyzate mass obtained in said acid conversion step contains a water-insoluble fat fraction and said fat fraction is separated from the hydrolyzate liquid mass preliminary to the mass being cooled to below 60* F.
Claim 2
Dependent Claim 37 words
The method according to claim 2 wherein fat separation from said acid hydrolyzate mass is carried out by centrifuging the fat-containing liquor at a temperature in the range of from about 80* F. to abOut 212* F.
Claim 3
Dependent Claim 28 words
The method according to claim 1 wherein the hydrolyzate liquor obtained upon separation of said polysaccharide precipitate from said cooled hydrolyzate mass subsequently is subjected to enzyme conversion.
Claim 4
Dependent Claim 39 words
The method according to claim 4 wherein said hydrolyzate liquor from said polysaccharide precipitate separation step is converted with alpha-amylase to an enzyme hydrolyzate having a D.E. in the range of from about 12 percent to about 22 percent.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-10-25 1975-04-26 1975-10-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-10-25 1979-04-26 1979-10-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-10-25 1983-04-26 1983-10-26 $7700.00 Window Closed / Lapsed

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