US4347259A
Expired / Lapsed
US
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Method for reducing the bacterial population of blood powder
Assignee: Niigata Engineering Co Ltd
•
Filing: 1980-01-15
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Granted: 1982-08-31
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Expires: 2000-01-15
Abstract
Abstract A method for reducing the bacterial population of a blood powder having a moisture content of about 30% by weight or less, comprising heating the powder at a heating temperature of about 80 to about 160 DEG C. for a period of time to reduce the bacterial population of the blood powder so as to obtain blood products having a solubility of at least 50% without denaturing the blood protein. The blood product is useful for a foodstuff material and a rheological binding agent suitable for the improvement of the quality of a processed foodstuff.
Inventors
- 👤 Yoshio Suzuki
- 👤 Masao Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:35
CPC Classifications
A; A23; A23J; A23J3/00; A23J3/04; A23J3/12; A61; A61K; A61K35/00; A61K35/12; A61K35/14; A61K35/16; A61L; A61L2/00; A61L2/02; A61L2/04; A61L2103/00; A61L2103/05; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/83
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
95 words
A method for reducing the bacterial population of a blood powder without substantially heat denaturing the blood protein in said powder or degrading the water solubility or heat coagulability of said blood protein during said method for reducing the bacterial population, which comprises heating said blood powder which has a moisture content of about 30% by weight or less at a temperature of about 80° to 160° C. for a period of time to reduce the bacterial population of said blood powder so as to obtain blood products having a solubility of at least 50%.
Claim 2
Independent Claim
95 words
A method for reducing the bacterial population of a blood powder without substantially heat denaturing the blood protein in said powder or degrading the water solubility or heat coagulability of said blood protein during said method for reducing the bacterial population, which comprises heating said blood powder which has a moisture content of about 30% by weight or less at a temperature of about 80° to 160° C. for a period of time to reduce the bacterial population of said blood powder so as to obtain blood products having a solubility of at least 50%.
Claim 3
Dependent Claim
23 words
The method of claim 1, wherein the powder is a plasma powder, a serum powder, a corpuscle powder, or a whole blood powder.
Claim 4
Independent Claim
16 words
The method of claims 1 or 2, wherein the heating temperature is 90° to 145° C.
Claim 5
Independent Claim
16 words
The method of claims 1 or 2, wherein the heating temperature is 100° to 130° C.
Claim 6
Independent Claim
16 words
The method of claims 1 or 2, wherein the heating temperature is 80° to 100° C.
Claim 7
Independent Claim
16 words
The method of claims 1 or 2, wherein the heating temperature is 80° to 130° C.
Claim 8
Independent Claim
16 words
The method of claims 1 or 2, wherein the heating temperature is 80° to 145° C.
Claim 9
Independent Claim
21 words
The method of claims 1 or 2, wherein the blood powder has a moisture content of 20% by weight or less.
Claim 10
Independent Claim
21 words
The method of claims 1 or 2, wherein the blood powder has a moisture content of 10% by weight or less.
Claim 11
Independent Claim
30 words
The method of claims 1 or 2, wherein the blood powder has a moisture content of 20% by weight or less and the heating temperature is 80° to 130° C.
Claim 12
Independent Claim
30 words
The method of claims 1 or 2, wherein the blood powder has a moisture content of 20% by weight or less and the heating temperature is 80° to 145° C.
Claim 13
Independent Claim
18 words
The method of claims 1 or 2, wherein the heating is performed for about 4 hours or less.
Claim 14
Independent Claim
18 words
The method of claims 1 or 2, wherein the heating is performed for about 10 minutes or less.
Claim 15
Independent Claim
18 words
The method of claims 1 or 2, wherein the heating is performed for about 5 to 10 minutes.
Claim 16
Dependent Claim
17 words
The method of claim 1, wherein the heating temperature is a temperature of the blood powder itself.
Claim 17
Dependent Claim
23 words
The method of claim 1, wherein the number of viable bacteria is reduced to less than 300/g of the product of the method.
References Cited (Backward Citations)
US1632321A
Cited
US3950555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-30 | 1986-03-01 | 1986-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-30 | 1990-03-01 | 1990-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-30 | 1994-03-01 | 1994-08-31 | $7700.00 | Window Closed / Lapsed |