Patent EP0096477A2 successfully refreshed from Google Patents.
EP0096477A2
Expired / Lapsed
EP
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Whey fermentation process
Assignee: Stauffer Chemical Co
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Filing: 1983-05-13
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Granted: —
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Expires: 2003-05-13
Abstract
Abstract A process for manufacture of fermented whey having a high concentration of propionic acid comprises subjecting the whey medium having a solids content ranging from 0.5% to 18% by weight to a sterilization step of direct steam injection, for a period of 4 to 12 seconds. The sterilized whey medium is then inoculated with a propionic acid-producing bacterium and incubated for a sufficient period of time to maximize the fermentation.
Inventors
- 👤 Charles Herbert Pyne
- 👤 Robert David Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 03:18
CPC Classifications
A; A23; A23C; A23C21/00; A23C21/02; A23C21/026; C; C12; C12N; C12N1/00; C12N1/20; C12P; C12P7/00; C12P7/40; C12P7/52
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
108 words
A method for producing high concentrations of propionic acid from fermented whey after having been sterilized, which comprises the steps of: 1) providing a quantity of a solution of whey having a solids content of from 0.5% to 18%; : 2) subjecting said solution to a direct steam injection while on a transport mechanism for a period of time ranging from 4 to 12 seconds; 3)inoculating said whey with a propionic acid-producing bacterium; 4) incubating said solution of whey and said bacterium for a period of time and at a temperature sufficient to allow said medium to ferment to its maximum degree; and 5) thereafter drying said whey.
Claim 2
Independent Claim
108 words
A method for producing high concentrations of propionic acid from fermented whey after having been sterilized, which comprises the steps of: 1) providing a quantity of a solution of whey having a solids content of from 0.5% to 18%; : 2) subjecting said solution to a direct steam injection while on a transport mechanism for a period of time ranging from 4 to 12 seconds; 3)inoculating said whey with a propionic acid-producing bacterium; 4) incubating said solution of whey and said bacterium for a period of time and at a temperature sufficient to allow said medium to ferment to its maximum degree; and 5) thereafter drying said whey.
Claim 3
Dependent Claim
38 words
A method as claimed in claim 1, characterized in that the steam has a temperature high enough to produce a medium temperature of at least 140°C, and wherein said period of time range from 4 to 12 seconds.
Claim 4
Dependent Claim
43 words
A method as claimed in claim 1 or claim 2 characterized in that the whey medium is a solution having a solids content of whey of 7 to 12% by weight, and which also contains a quantity of yeast as a fermenting agent.
Claim 5
Dependent Claim
46 words
A process of producing propionic acid from fermented whey in which one of the steps is the sterilization of the whey medium, the improvement of sterilizing said whey by direct steam injection in a confined area for. a period of time ranging from-.4 to 12 seconds.
Claim 6
Dependent Claim
46 words
A process of producing propionic acid from fermented whey in which one of the steps is the sterilization of the whey medium, the improvement of sterilizing said whey by direct steam injection in a confined area for. a period of time ranging from-.4 to 12 seconds.
Claim 7
Dependent Claim
43 words
A process as claimed in claim 4 characterized in that the steam has a temperature high enough to produce a medium temperature of at least 140°C and said whey is subjected to a direct steam injection for a period of approximately 4 seconds.
Claim 8
Dependent Claim
29 words
A process for sterilizing a whey medium of high solids content, which comprises subjecting said medium to a direct steam injection for a period of 4 to 12 seconds.
Claim 9
Dependent Claim
29 words
A process for sterilizing a whey medium of high solids content, which comprises subjecting said medium to a direct steam injection for a period of 4 to 12 seconds.
Claim 10
Dependent Claim
39 words
A process as claimed in claim 6 characterized in that the steam is at a temperature high enough to produce a medium temperature of at least 140°C and wherein said injection is maintained for a period of 4 seconds.
Claim 11
Independent Claim
122 words
A method for the sterilization of whey which comprises the steps of: 1) providing a quantity of a solution of whey and in a solids content of from 0.5 to 18 percent by weight; 2) partially denaturing the protein content of said whey by subjecting said quantity to a temperature of 90°C for 60 seconds; 3) thereafter subjecting said whey solution to a direct steam injection for a period of time ranging from 4 to 12 seconds; 4) inoculating said whey with a propionic acid-producing bacterium; 5) incubating said solution of whey and said culture medium for a period of time and at a temperature sufficient to allow said medium to ferment to its maximum degree; and 6) drying said fermented whey.
Claim 12
Independent Claim
122 words
A method for the sterilization of whey which comprises the steps of: 1) providing a quantity of a solution of whey and in a solids content of from 0.5 to 18 percent by weight; 2) partially denaturing the protein content of said whey by subjecting said quantity to a temperature of 90°C for 60 seconds; 3) thereafter subjecting said whey solution to a direct steam injection for a period of time ranging from 4 to 12 seconds; 4) inoculating said whey with a propionic acid-producing bacterium; 5) incubating said solution of whey and said culture medium for a period of time and at a temperature sufficient to allow said medium to ferment to its maximum degree; and 6) drying said fermented whey.
References Cited (Backward Citations)
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