US4133752A
Expired / Lapsed
US
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Method for decomposition of phthalic acid esters by use of microorganisms
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1977-03-31
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Granted: 1979-01-09
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Expires: 1997-03-31
Abstract
Abstract Microorganisms of a species selected from the group consisting of the specific species belonging to genus Nocardia, genus Pseudomonas, genus Brevibacterium and genus Corynebacterium, when cultured in a culture medium containing a phthalic acid ester as a carbon source, assimilate the phthalic acid ester and decompose it into carbon dioxide gas and water.
Inventors
- 👤 Ryuichiro Kurane
- 👤 Tomoo Suzuki
- 👤 Yoshimasa Takahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:51
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/34; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C02F2101/00; C02F2101/30; C02F2101/34; C12R; C12R2001/00; C12R2001/01; C12R2001/13; C12R2001/15; C12R2001/365; C12R2001/38; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/872
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
93 words
A method for the decomposition of a phthalic acid ester comprising the step of culturing in a culture medium containing said phthalic acid ester a microorganism selected from the group consisting of Nocardia erythropolis KR-S-1 (FERM No. 3530), Nocardia restricta KR-242-1 (FERM No. 3919), Nocardia blackwellii KR-254-1 (FERM No. 3921), Nocardia erythropolis KR-256-2 (FERM No. 3923), Nocardia restricta KR-260-2 (FERM No. 3924), Nocardia erythropolis KR-23-1 (FERM No. 3913), Nocardia erythropolis KR-23-3 (FERM No. 3914), Nocardia minima KR-48-1 (FERM No. 3915), Nocardia calcarea KR-62-1 (FERM No. 3916), and Nocardia erythropolis KR-71-1 (FERM No. 3918).
Claim 2
Independent Claim
93 words
A method for the decomposition of a phthalic acid ester comprising the step of culturing in a culture medium containing said phthalic acid ester a microorganism selected from the group consisting of Nocardia erythropolis KR-S-1 (FERM No. 3530), Nocardia restricta KR-242-1 (FERM No. 3919), Nocardia blackwellii KR-254-1 (FERM No. 3921), Nocardia erythropolis KR-256-2 (FERM No. 3923), Nocardia restricta KR-260-2 (FERM No. 3924), Nocardia erythropolis KR-23-1 (FERM No. 3913), Nocardia erythropolis KR-23-3 (FERM No. 3914), Nocardia minima KR-48-1 (FERM No. 3915), Nocardia calcarea KR-62-1 (FERM No. 3916), and Nocardia erythropolis KR-71-1 (FERM No. 3918).
Claim 3
Dependent Claim
29 words
The method for the decomposition according to claim 1, wherein the culture is made by using a culture medium containing not more than 10% of the phthalic acid ester.
Claim 4
Dependent Claim
45 words
The method for the decomposition according to claim 1, wherein the culture is made by keeping the pH value of the culture medium in the range of from 4 to 9 and the temperature thereof in the range of from 5° C. to 40° C.
Claim 5
Dependent Claim
21 words
The method for the decomposition according to claim 1, wherein the microorganisms to be used are those of a microbial flora.
Claim 6
Dependent Claim
40 words
The method of claim 1 wherein said phthalic acid ester is decomposed to carbon dioxide and water, and wherein said medium is kept at a pH of from 4 to 9 and a temperature of from 5° to 40° C.
Claim 7
Dependent Claim
15 words
The method of claim 1 wherein said microorganism is Nocardia erythopolis KR-S-1 (FERM No. 3530).
Claim 8
Dependent Claim
15 words
The method of claim 1 wherein said microorganism is Nocardia restricta KR-242-1 (FERM No. 3919).
Claim 9
Dependent Claim
15 words
The method of claim 1 wherein said microorganism is Nocardia blackwellii KR-254-1 (FERM No. 3921).
Claim 10
Dependent Claim
15 words
The method of claim 1 wherein said microorganism is Nocardia erythopolis KR-256-2 (FERM No. 3923).
Claim 11
Dependent Claim
15 words
The method of claim 1 wherein said microorganism is Nocardia restricta KR-260-2 (FERM No. 3924).
Claim 12
Dependent Claim
15 words
The method of claim 1 wherein said microorganism is Nocardia erythopolis KR-23-1 (FERM No. 3913).
Claim 13
Dependent Claim
15 words
The method of claim 1 wherein said microorganism is Nocardia erythopolis KR-23-3 (FERM No. 3914).
Claim 14
Dependent Claim
15 words
The method of claim 1 wherein said microorganism is Nocardia minima KR-481 (FERM No. 3915).
Claim 15
Dependent Claim
15 words
The method of claim 1 wherein said microorganism is Nocardia calcarea KR-62-1 (FERM No. 3916).
Claim 16
Dependent Claim
15 words
The method of claim 1 wherein said microorganism is Nocardia erythopolis KR-71-1 (FERM No. 3918).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |