# US 4,466,988 A · Edible protein containing substances

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- Number: US 4,466,988 A
- Document ID: US4466988A
- Status: Granted
- Kind: A
- Application number: 05/809,018
- Filed: 1977-06-22
- Granted: 1984-08-21
- Earliest claimed: 1973-09-24
- Assignees: Ranks Hovis McDougall Limited
- Inventors: Peter J. Towersey; John Longton; Geoffrey N. Cockram
- Web page: https://patentgrep.com/patent/US4466988A

## CPC

- A23J 3/20: Proteins from microorganisms or unicellular algae
- C12N 1/08: Reducing the nucleic acid content
- Y10S 530/821: Separation of nucleic acid
- A23J: PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
- C12N: MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA (microbiological testing media C12Q1/00)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A fermentation product comprising a nonviable edible proteinaceous mass derived from a non-toxic fungal mycelium of a non-toxic strain of Fusarium preferably selected from the group consisting of Fusarium graminearum, Fusarium solani and Fusarium oxysporum possessing a reduced level of RNA of below 4%.

## Claims

### Claim 1

An edible protein-containing substance comprising a non-viable edible non-toxic fungal mycelium of a non-toxic strain of Fusarium possessing a reduced level of RNA of below 2%, and being further characterized by improved ease of processing to a form suitable for food use and an essentially white color such to make the protein-containing substance compatible with food use and a filamentous structure.

### Claim 2

An edible protein-containing substance comprising a non-viable edible non-toxic fungal mycelium of a non-toxic strain of Fusarium selected from the group consiting of Fusarium graminearum, Fusarium solani, and Fusarium oxysporum possessing a reduced level of RNA of below 1.5%, and being further characterized by improved ease of processing to a form suitable for food use and an essentially white color such to make the protein-containing substance compatible with food use and a filamentous structure.

### Claim 3

An edible protein-containing substance comprising a non-viable edible non-toxic fungal mycelium of a non-toxic strain of Fusarium graminearum Schwabe deposited with the Commonwealth Mycological Institute and assigned the number IMI 145425 (A.T.C.C. No. 20334) possessing a reduced level of RNA of below 1.29%, and being further characterized by improved ease of processing to a form suitable for food use and an essentially white color such to make the protein-containing substance compatible with food use and a filamentous structure.

### Claim 4

An edible protein-containing substance comprising a non-viable edible non-toxic fungal mycelium of a non-toxic strain of Fusarium, said product having a filamentous structure and possessing a reduced level of RNA of between approximately 0.8% and approximately 0.43%, and being further characterized by improved ease of processing to a form suitable for food use and an essentially white color such to make the protein-containing substance compatible with food use.

### Claim 5

An edible protein-containing substance in the form of a cohesive sheet comprising a non-viable edible non-toxic fungal mycelium of a non-toxic strain of Fusarium, said product having a high net protein utilization value of the order of 41 or above based on total nitrogen and possessing a reduced level of RNA of between approximately 0.67% and approximately 0.43%, and being further characterized by improved ease of processing to a form suitable for food use and an essentially white color such to make the protein-containing substance compatible with food use and a filamentous structure.

### Claim 6

An edible protein-containing substance comprising a non-viable edible non-toxic fungal mycelium of a non-toxic strain of Fusarium graminearum Schwabe I.M.I. 145425 (A.T.C.C. No. 20334), said product having a high net protein utilization value of the order of 52 or above based on total nitrogen and possessing a reduced level of RNA of approximately 0.43%, and being further characterized by a white color such to make the protein-containing substance compatible with food use and a filamentous structure, and being capable of processing by vacuum filtration in the form of a washed moist product suitable for food use.