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US4028470A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for producing koji for fermented food products

Assignee: Kikkoman Corp
•
Filing: 1976-06-08
•
Granted: 1977-06-07
•
Expires: 1996-06-08
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Abstract

Abstract Producing koji for fermented food products by modifying an unmodified koji-substrate composed of a vegetable protein material and a vegetable carbohydrate material, inoculating a koji mold in the resulting modified koji-substrate, and cultivating it, wherein said cultivation is carried out in the presence of 0.1 to 1.2% by weight, based on the water content of the modified koji-substrate, of acetic acid added. This process is suitable for use in the manufacture of fermented foods such as soy sauce, miso, or sake.

Inventors

  • 👤 Kazuya Hayashi
  • 👤 Takeji Mizunuma
  • 👤 Tamotsu Yokotsuka

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 17:30
CPC Classifications
A; A23; A23L; A23L27/00; A23L27/50; A23L11/00; A23L11/50; A23L27/20; A23L27/24; A23L7/00; A23L7/10; A23L7/104

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 99 words
A process for producing koji for fermented food products which comprises inoculating a koji mold in a modified koji-substrate composed of a vegetable protein material and a vegetable carbohydrate material and selected from the group consisting of steamed koji-substrate, puffed koji-substrate and roasted koji-substrate, and cultivating the koji mold in the presence of 0.1 to 1.2% by weight, based on the water content of the modified koji-substrate of acetic acid at a pH of about 4 to 7.5, a temperature of about 20° to about 40° C and for a time sufficient to produce koji for fermented food products.
Claim 2
Dependent Claim 99 words
A process for producing koji for fermented food products which comprises inoculating a koji mold in a modified koji-substrate composed of a vegetable protein material and a vegetable carbohydrate material and selected from the group consisting of steamed koji-substrate, puffed koji-substrate and roasted koji-substrate, and cultivating the koji mold in the presence of 0.1 to 1.2% by weight, based on the water content of the modified koji-substrate of acetic acid at a pH of about 4 to 7.5, a temperature of about 20° to about 40° C and for a time sufficient to produce koji for fermented food products.
Claim 3
Dependent Claim 34 words
The process of claim 1 wherein said acetic acid is added to said unmodified koji-substrate or at any time during a period from the modification of the koji-substrate to the end of the cultivation.
Claim 4
Dependent Claim 16 words
The process of claim 1 wherein said fermented food product is soy sauce, miso, or sake.
Claim 5
Dependent Claim 47 words
The process of claim 1 wherein said vegetable protein material is a member selected from the group consisting of soybeans, defatted soybeans, dehulled soybeans, and gluten, and said vegetable carbohydrate material is a member selected from the group consisting of wheat, wheat bran, rice, barley and oat.
Claim 6
Dependent Claim 21 words
The process according to claim 1 wherein the cultivation is continued for a period of about 30 to about 100 hours.
Claim 7
Dependent Claim 25 words
The process of claim 1 in which the specified amount of acetic acid is present during at least the first half of the cultivation step.
Claim 8
Dependent Claim 34 words
The process of claim 6 in which from 0.2 to 8.0% by weight, based on the water content of the modified koji-substrate is present during at least the first half of the cultivation step.
Claim 9
Dependent Claim 21 words
The process of claim 1 in which from 0.2 to 8.0% by weight of acetic acid is present during the cultivation.

References Cited (Backward Citations)

US2107133A Cited
US3764708A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-06-06 1980-12-06 1981-06-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-06-06 1984-12-06 1985-06-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-06-06 1988-12-06 1989-06-07 $7700.00 Window Closed / Lapsed

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