EP0161481A2
Expired / Lapsed
EP
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Medium for citrate utilization test
Assignee: Terumo Corp
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Filing: 1985-04-10
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Granted: —
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Expires: 2005-04-10
Abstract
Abstract A medium for citrate utilization test, comprising: 0.5 to 5 g of citrate, 0.1 to 1 g of dialkali metal monohydrogen phosphate, 0.2 to 2 g of monoalkali metal dihydrogen phosphate, 0.3 to 6 g of magnesium salt, 1 to 10 g of sodium chloride, and 0.01 to 0.2 g of a pH indicator, wherein the component ratio of dialkali metal monohydrogen phosphate to monoalkali metal dihydrogen phosphate by weight is in the range of 1 : 1.5 to 1 : 5, which culture medium exhibits a pH value in the range of 5.5 to 7.0 when dissolved in 1 liter of water.
Inventors
- 👤 Takeshi Igarashi
- 👤 Toshihiko Endo
- 👤 Isei Koshi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 23:30
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/02; C12Q1/04; C12Q1/045
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
103 words
A medium for citrate utilization test, comprising: 0.5 to 5 g of citrate, 0.1 to 1 g of dialkali metal monohydrogen phosphate, 0.2 to 2 g of monoalkali metal dihydrogen phosphate, 0.3 to 6 g of magnesium salt, 1 to 10 g of sodium chloride, and 0.01 to 0.2 g of a pH indicator, wherein the component ratio of dialkali metal monohydrogen phosphate to monoalkali metal dihydrogen phosphate by weight is in the range of 1 : 1.5 to 1 : 5, which culture medium exhibits a pH value in the range of 5.5 to 7.0 when dissovled in 1 liter of water.
Claim 2
Independent Claim
103 words
A medium for citrate utilization test, comprising: 0.5 to 5 g of citrate, 0.1 to 1 g of dialkali metal monohydrogen phosphate, 0.2 to 2 g of monoalkali metal dihydrogen phosphate, 0.3 to 6 g of magnesium salt, 1 to 10 g of sodium chloride, and 0.01 to 0.2 g of a pH indicator, wherein the component ratio of dialkali metal monohydrogen phosphate to monoalkali metal dihydrogen phosphate by weight is in the range of 1 : 1.5 to 1 : 5, which culture medium exhibits a pH value in the range of 5.5 to 7.0 when dissovled in 1 liter of water.
Claim 3
Dependent Claim
81 words
A medium according to Claim 1, which comprises: 1 to 4 g of citrate, 0.2 to 0.6g of dialkali metal monohydrogen phosphate, 0.3 to 1.2 g of monoalkali metal dihydrogen phosphate, 0.5 to 3 g of magnesium salt, 2 to 8 g of sodium chloride, 0.06 to 0.14 g of a pH indicator, wherein the component ratio of dialkali metal monohydrogen phosphate to monoalkali metal dihydrogen phosphate by weight is in the range of 1 : 2 - 1 : 3.
Claim 4
Dependent Claim
21 words
A medium according to Claim 2, wherein the pH value of the medium is in the range of 6.0 to 6.5.
Claim 5
Dependent Claim
16 words
A medium according to Claim 1, wherein said citrate is an alkali metal or ammonium salt.
Claim 6
Dependent Claim
16 words
A medium according to Claim 4, wherein said alkali metal citrate is potassium or sodium citrate.
Claim 7
Dependent Claim
22 words
A medium according to Claim 1, wherein said dialkali metal monohydrogen phosphate and monoalkali metal dihydrogen phosphate are potassium or sodium salts.
Claim 8
Dependent Claim
15 words
A medium according to Claim 1, wherein said magnesium salt is a mineral acid salt.
Claim 9
Dependent Claim
24 words
A medium according to Claim 7, wherein said mineral acid is one compound selected from the group consisting of chloride, nitrate, sulfate and phosphate.
Claim 10
Dependent Claim
30 words
A medium according to Claim 1, wherein said pH indicator is one compound selected from the group consisting of phenol red, bromothymol blue, bromocresol purple, cresol red and bromophenol red.
Claim 11
Dependent Claim
13 words
A medium according to Claim 9, wherein said pH indicator is bromothymol blue.
References Cited (Backward Citations)
No citation records indexed.
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