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Processed dried beans as instant food and their manufacturing method

Assignee: Kracie Foods Ltd
•
Filing: 1978-01-16
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Granted: 1980-07-22
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Expires: 1998-01-16
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Abstract

Abstract Processed dried beans which almost instantaneously restore their boiled soft edible condition without a loss of the taste and flavor peculiar to the beans, simply by pouring hot water onto the processed dried beans, and the manufacturing method of such dried beans. Raw beans are first boiled in water, and thereafter they are treated with a solution of an enzyme selected from a group consisting of cellulose, pectinase and a mixture thereof, with or without subsequent boiling of beans in water. The processed dried beans may have a coating of sucrose or lactose. The beans are limited to those which are rich in starch and poor in both protein and fat.

Inventors

  • 👤 Yoshinobu Hase
  • 👤 Masaaki Yamauchi
  • 👤 Ryozo Handa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 14:16
CPC Classifications
A; A23; A23N; A23N7/00; A23N7/01; A23L; A23L11/00; A23L11/10; A23L5/00; A23L5/57

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 133 words
Processed dried beans suitable for instant cooking, which are quickly restored to the condition of boiled soft raw beans simply by pouring hot water onto the processed dried beans, said beans being rich in starch and poor in both protein and fat, the improvement wherein the starch component in said dried beans has been converted to a α-type starch and that the cell tissues of said beans have been treated with an enzyme selected from a group consisting of cellulase produced by Trichoderma viride, cellulase produced by Irpex lacteus and cellulase produced by Trichoderma koningi and a mixture of said cellulase and pectinase produced by Rhizopus arrhizus and pectinase produced by Coniothrium diplodiella, for a period of time sufficient to destroy the cellulosic substances or cellulosic and pectic substances of said cell tissues.
Claim 2
Dependent Claim 133 words
Processed dried beans suitable for instant cooking, which are quickly restored to the condition of boiled soft raw beans simply by pouring hot water onto the processed dried beans, said beans being rich in starch and poor in both protein and fat, the improvement wherein the starch component in said dried beans has been converted to a α-type starch and that the cell tissues of said beans have been treated with an enzyme selected from a group consisting of cellulase produced by Trichoderma viride, cellulase produced by Irpex lacteus and cellulase produced by Trichoderma koningi and a mixture of said cellulase and pectinase produced by Rhizopus arrhizus and pectinase produced by Coniothrium diplodiella, for a period of time sufficient to destroy the cellulosic substances or cellulosic and pectic substances of said cell tissues.
Claim 3
Dependent Claim 14 words
Processed dried beans according to claim 1, said beans having a sucrose coating thereon.
Claim 4
Dependent Claim 14 words
Processed dried beans according to claim 1, said beans having a lactose coating thereon.
Claim 5
Dependent Claim 34 words
Processed dried beans according to claim 1 wherein said beans are selected from a group consisting of Adzuki beans, Peyin beans, Kidney beans, Scarlet rummers, Lima beans, Peas, Broad beans, Cuba beans and Catiangs.
Claim 6
Independent Claim 174 words
A method for producing processed dried beans which are quickly restored to the condition of boiled soft raw beans by pouring hot water onto the processed dried beans, said beans being rich in starch and poor in both protein and fat, the improvement comprising the successive steps of (1) boiling raw beans at least once in water, (2) subjecting said boiled beans to an enzymatic-treatment by contacting said boiled beans with an aqueous solution containing an enzyme acting on the pectic intercellular cellulosic materials of the bean cell walls, for a period of time sufficient to destroy the cellulosic substances or cellulosic and pectic substances of said cell tissues, said enzyme selected from the group consisting of cellulase produced by Trichoderma viride cellulase produced by Irpex lacteus and cellulase produced by Trichoderma koningi and a mixture of said cellulase and pectinase produced by Rhizopus arrhizus and pectinase produced by Coniothrium diplodiella at a pH of acidic to neutral such that the starch component of said beans becomes gelatinized, and thereafter (3) drying said beans.
Claim 7
Independent Claim 174 words
A method for producing processed dried beans which are quickly restored to the condition of boiled soft raw beans by pouring hot water onto the processed dried beans, said beans being rich in starch and poor in both protein and fat, the improvement comprising the successive steps of (1) boiling raw beans at least once in water, (2) subjecting said boiled beans to an enzymatic-treatment by contacting said boiled beans with an aqueous solution containing an enzyme acting on the pectic intercellular cellulosic materials of the bean cell walls, for a period of time sufficient to destroy the cellulosic substances or cellulosic and pectic substances of said cell tissues, said enzyme selected from the group consisting of cellulase produced by Trichoderma viride cellulase produced by Irpex lacteus and cellulase produced by Trichoderma koningi and a mixture of said cellulase and pectinase produced by Rhizopus arrhizus and pectinase produced by Coniothrium diplodiella at a pH of acidic to neutral such that the starch component of said beans becomes gelatinized, and thereafter (3) drying said beans.
Claim 8
Dependent Claim 36 words
A method according to claim 5, wherein said enzyme solution contains cellulose in an amount of 0.1 to 5.0% by weight based on the weight of said beans being brought into contact with said enzyme solution.
Claim 9
Dependent Claim 49 words
A method according to claim 5, wherein said enzyme solution contains both cellulase and pectinase in an amount, based on the weight of said beans being brought into contact with said enzyme solution, of 0.1 to 3.0% by weight of cellulase and 0.1 to 4.0% by weight of pectinase.
Claim 10
Dependent Claim 17 words
A method according to claim 5, wherein said enzyme solution has a pH of 3.0 to 7.0.
Claim 11
Dependent Claim 17 words
A method according to claim 6, wherein said enzyme solution has a pH of 3.0 to 5.0.
Claim 12
Dependent Claim 17 words
A method according to claim 7, wherein said enzyme solution has a pH of 3.5 to 5.0.
Claim 13
Dependent Claim 37 words
A method according to claim 5, further comprising preliminary immersing of said raw beans in water at a temperature of 5° to 95° C. for 2 to 8 hours before said boiling of raw beans in water.
Claim 14
Dependent Claim 20 words
A method according to claim 5, wherein said boiling in water prior to said enzymatic treatment is carried out twice.
Claim 15
Dependent Claim 27 words
A method according to claim 5, wherein said boiling in water prior to said enzymatic treatment is carried out for 20 to 80 minutes under normal pressure.
Claim 16
Dependent Claim 34 words
A method according to claim 5, wherein said boiling in water prior to said enzymatic treatment is carried out at a temperature of 110° to 120° C. for 10 to 40 minutes under pressure.
Claim 17
Dependent Claim 37 words
A method according to claim 5, wherein said boiling in water prior to said enzymatic treatment is carried out in the presence of a softening promoter selected from a group consisting of sodium polyphosphate and potassium polyphosphate.
Claim 18
Dependent Claim 19 words
A method according to claim 5, wherein said enzymetreatment is carried out with stirring for 30 to 180 minutes.
Claim 19
Dependent Claim 27 words
A method according to claim 5, wherein said enzymetreatment is carried out by maintaining said boiled beans quietly in said enzyme solution for 0.5 to 6 hours.
Claim 20
Dependent Claim 26 words
A method according to claim 5, further comprising coating said enzyme-treated beans with sucrose by immersing said beans in a solution of sucrose before said drying.
Claim 21
Dependent Claim 16 words
A method according to claim 18, wherein said coating is formed by the use of lactose.
Claim 22
Dependent Claim 35 words
A method according to claim 5, wherein said drying is carried out at a temperature of 60° to 120° C. until said dried beans have a water content of not greater than 15% by weight.
Claim 23
Dependent Claim 33 words
A method according to claim 5, wherein said beans are selected from a group consisting of Adzuki beans, Peyin beans, Kidney beans, Scarlet rummers, Lima beans, Peas, Broad beans, Cuba beans and Catiangs.

References Cited (Backward Citations)

US2278470A Cited
US3510313A Cited
US3640723A Cited
US3867553A Cited
JPS5013350A Cited
US4119733A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-07-22 1984-01-21 1984-07-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-07-22 1988-01-21 1988-07-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-07-22 1992-01-21 1992-07-22 $7700.00 Window Closed / Lapsed

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