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1. 发明专利

JPH10108670A BACTERIA CAPABLE OF DECOMPOSING POLYLACTATE RESIN AND MICROBIAL DECOMPOSITION OF POLYLACTATE RESIN 失效
公开(公告)号：JPH10108670A
公开(公告)日：1998-04-28
申请号：JP26207496
申请日：1996-10-02
申请人： AGENCY IND SCIENCE TECHN , SHIMADZU CORP
发明人： TOKIWA YUTAKA , JIKUYA HIROYUKI , NAGAI NAOKO
IPC分类号： C12N1/20 , B09B3/00 , C08J11/06 , C12P1/06 , C12R1/44 , C12R1/45 , C12S99/00 , C12S13/00
摘要： PROBLEM TO BE SOLVED: To obtain Staphylococcus hominis (FERM P-15867) capable of decomposing polylactate resin without exhausting gases in contrast to the incineration treatment, saving the time compared with land disposal and having extremely high value from the viewpoint of waste processing. SOLUTION: Staphylococcus hominis (FERM P-15867) or Staphylococcus epidermidis (FERM P-15868) capable of decomposing a polylactate resin is separated from the soil collected in the Tsukuba City, Ibaraki Prefecture, Japan.

2. 发明专利

JPH10108669A MICROORGANISM CAPABLE OF DECOMPOSING POLYLACTATE RESIN AND MICROBIAL DECOMPOSITION OF POLYLACTATE RESIN 失效
公开(公告)号：JPH10108669A
公开(公告)日：1998-04-28
申请号：JP26207396
申请日：1996-10-02
申请人： AGENCY IND SCIENCE TECHN , SHIMADZU CORP
发明人： TOKIWA YUTAKA , JIKUYA HIROYUKI , NAGAI NAOKO
IPC分类号： C12N1/20 , B09B3/00 , C08J11/06 , C12P1/06 , C12R1/465 , C12S99/00 , C12S13/00
摘要： PROBLEM TO BE SOLVED: To obtain a microorganism belonging to the genus Streptomyces (FERM P-1.5869), capable of decomposing polylactate resin without exhausting gases in contrast to the incineration treatment, saving the time compared with land disposal and having extremely high value from the viewpoint of waste processing. SOLUTION: A microorganism belonging to the genus Streptomyces and capable of decomposing polylactate resin (FERM P-15869), preferably Streptomyces violaceusniger or Streptomyces cyaneus is separated from the soil, river water or lake water collected in the Tsukuba City, Ibaraki Prefecture, Japan.

3. 发明专利

JPH114680A BACTERIA DECOMPOSING POLYLACTIC ACID RESIN AND MICROBIAL DEGRADATION OF POLYLACTIC ACID RESIN 失效
公开(公告)号：JPH114680A
公开(公告)日：1999-01-12
申请号：JP16023097
申请日：1997-06-17
申请人： AGENCY IND SCIENCE TECHN , SHIMADZU CORP
发明人： TOKIWA YUTAKA , NAGAI NAOKO , JIKUYA HIROYUKI
IPC分类号： C12N1/20 , B09B3/00 , C08J11/04 , C08L101/16 , C12R1/07 , C12R1/09 , C12R1/125 , C12S99/00
摘要： PROBLEM TO BE SOLVED: To provide a converting method of polylactic acid resin into useful materials such as organic acids, etc., or composts without producing exhaust gas such as incineration by decomposing the polylactic acid resin with fungus belonging to genus Bacillus. SOLUTION: The polylactic acid resins such as poly-L-lactic acid, etc., are decomposed by the fungus belonging to genus Bacillus such as Bacillus subtilis (FERM P-16181), Bacillus circulans (FERM P-16182), Bacillus stearothermophilus (FERM P-16183), etc., free from pollution of the environment.

4. 发明专利

JPH09325144A AEROBIC BIODEGRABILITY MEASURING APPARATUS 失效
公开(公告)号：JPH09325144A
公开(公告)日：1997-12-16
申请号：JP14262296
申请日：1996-06-05
申请人： AGENCY IND SCIENCE TECHN , SHIMADZU CORP
发明人： TOKIWA YUTAKA , MATSUI MASAMI
IPC分类号： G01N33/18
摘要： PROBLEM TO BE SOLVED: To provide a aerobic biodegrability measuring apparatus which enables accurately determining the aerobic biodegrability representing the decomposition of an organic substance by microorganisms in a culture solution. SOLUTION: This apparatus is provided with a carbon dioxide trapping part to trap carbon dioxide in a trapping solution 23 as generated by the decomposition of an organic substance by microorganisms, a separation section 5 to separate carbon dioxide from the trapping solution 23, a carbon dioxide detecting section 6 to detect the carbon dioxide separated and a liquid feeding section 4 to feed the trapping solution 23 to the separation section 5 from the carbon dioxide trapping part. The microorganisms decompose the organic substances to generate carbon dioxide. The alkali trapping solution 23 in the carbon dioxide trapping section 1 favorably absorbs carbon dioxide generated. The liquid feeding section 4 draws out the trapping solution 23 in the carbon dioxide trapping section 1 to be fed to the separation section 5. The separation section 5 separates carbon dioxide from the trapping solution fed and the carbon dioxide detecting section 6 detects carbon dioxide separated to measure the amount thereof. Thus, carbon dioxide generated by the decomposition of the organic substances by the microorganisms is directly measured to determine the degree of the decomposition of the organic substances by the microorganisms.

5. 发明专利

JPH0937776A BACTERIUM HYDROLYZING POLYLACTIC ACID RESIN AND BACTERIUM HYDROLYSIS OF POLYLACTIC ACID RESIN 失效
公开(公告)号：JPH0937776A
公开(公告)日：1997-02-10
申请号：JP16050195
申请日：1995-06-27
申请人： AGENCY IND SCIENCE TECHN , SHIMADZU CORP
发明人： TOKIWA YUTAKA , TANAKA HIDEO , HARUDANIN PURANAMUDA , YAHATA MASAHITO
IPC分类号： C12P1/06 , B09B3/00 , C08L101/16 , C12N1/20 , C12R1/01 , C12S99/00
摘要： PURPOSE: To obtain the subject bacterium Amycolatopsis mediterranei (FERM P-14,921) having a polylactic acid resin hydrolyzing ability, useful for waste treatment of a polylactic acid resin useful as a material for medical treatment, a medicine, etc. CONSTITUTION: This new bacterium Amycolatopsis mediterranei (FERM P-14,921) is an actinomyces belonging to the genus Amycolatopsi, having a polylactic acid resin hydrolyzing ability. In waste treatment of a polylactic acid resin having been used as a material for medical treatment and a medicine, an exhaust gas will not emit as incineration as an existing method, the treatment is carried out in a much shorter time than a reclamation treatment. By using the bacterium in composting facilities, a polylactic acid resin can be converted into a useful substance such as an organic acid, etc. The new bacterium is obtained by culturing a bacterium collected from water in soil, a river, a lake or a marsh at Tukuba City in Ibaragi Prefecture in a medium containing a polylactic acid resin, picking up a strain forming a transparent region in the periphery of a colony and carrying out isolation operation.

6. 发明专利

JPH1146755A ACTINOMYCES CAPABLE OF DEGRADING POLYLACTIC ACID RESIN AND BIODEGRADATION OF POLYLACTIC ACID RESIN 失效
公开(公告)号：JPH1146755A
公开(公告)日：1999-02-23
申请号：JP21082997
申请日：1997-08-05
申请人： AGENCY IND SCIENCE TECHN , SHIMADZU CORP
发明人： TOKIWA YUTAKA , NAGAI NAOKO , JIKUYA HIROYUKI
IPC分类号： C12N1/00 , B09B3/00 , C08J11/10 , C08L101/16 , C12N1/20 , C12R1/03
摘要： PROBLEM TO BE SOLVED: To directly biodegrade a polylactic acid resin or a plastic including the above resin by subjecting the polylactic acid resin to actinomyces to convert the resin to a useful substance such as an organic acid or compost. SOLUTION: Bacteria belonging to the genus Actinomadura, in particular, Actinomadura viridis (FERM P-16247) and polylactic acid resin are added to a medium containing an inorganic acid salt to degrade the resin; wherein the culturing conditions are as follows: pH 4.0-6.0, temperature: 10-75 deg.C, atmosphere: aerobic.

7. 发明专利

JPH11127850A DEGRADATION OF POLYLACTIC ACID 失效
公开(公告)号：JPH11127850A
公开(公告)日：1999-05-18
申请号：JP31661697
申请日：1997-11-04
申请人： AGENCY IND SCIENCE TECHN , TOKUYAMA CORP
发明人： TOKIWA YUTAKA , KONNO MARIKO , NISHIDA HARUO
IPC分类号： C12N1/20 , B09B3/00 , C08J11/10 , C08L101/16 , C12R1/04
摘要： PROBLEM TO BE SOLVED: To find out a microorganism capable of degrading a polylactic acid and to provide a method for carrying out the degradation treatment of the polylactic acid by using the microorganism in order to safely and rapidly carry out the microbial degradation of the polylactic acid. SOLUTION: A microorganism having the ability to degrade silk such as a new strain KT-S-9 deposited as Actinomycete species KT-S-9 strain (FERM P-16463) is used to carry out the degradation treatment of a composition containing a polylactic acid such as a paper diaper.

8. 发明专利

JPH08151476A METHOD OF ENZYMATICALLY DEGRADING POLYCARBONATE RESIN 失效
公开(公告)号：JPH08151476A
公开(公告)日：1996-06-11
申请号：JP29265894
申请日：1994-11-28
申请人： AGENCY IND SCIENCE TECHN
发明人： SUYAMA TETSUSHI , TOKIWA YUTAKA
IPC分类号： C12N9/20 , C08G64/42 , C08J11/04 , C08J11/22 , C08L101/16 , C12P1/04 , C12R1/38 , C12S99/00
摘要： PURPOSE: To efficiently biodegrade a polycarbonate resin by using a specific enzyme. CONSTITUTION: A polycarbonate resin is degraded with a lipase preparation derived from a pig pancreas or a lipase or lipoprotein lipase preparation derived from a microorganism belonging to the genus pseudomonas. Examples of the resin include aliphatic polycarbonate resins and derivatives and copolymers thereof.

9. 发明专利

JPH07179697A THERMOFORMING MATERIAL CONTAINING HALOGENATED VINYL RESIN, ITS PRODUCTION, AND PRODUCTION OF BIODEGRADABLE THERMOPLASTIC RESIN MOLDING 失效
公开(公告)号：JPH07179697A
公开(公告)日：1995-07-18
申请号：JP19604794
申请日：1994-07-28
申请人： AGENCY IND SCIENCE TECHN , FUKUVI CHEM IND CO
发明人： TOKIWA YUTAKA , AKITA KIYOSHI
IPC分类号： C08J3/12 , B29C47/00 , B29K27/00 , B29K67/00 , C08L27/02 , C08L67/00 , C08L67/02 , C08L67/04 , C08L101/16
摘要： PURPOSE:To produce a molded article containing a halogenated vinyl resin and excellent in physical properties and biodegradability. CONSTITUTION:This material has a structure wherein a halogenated vinyl resin powder is bonded to the surface of a small solid material comprising an aliphatic polyester resin. The process for producing the material comprises mixing by agitation pellets of the aliphatic polyester resin and the powder of the halogenated vinyl resin while keeping the polyester resin in a semi-melted or melted state by heating and the halogenated vinyl resin in an unmelted state. The material is melt compounded and extruded through a die at the end of an extruder under conditions satisfying the formula, 5X10 >=etaA/etaB>=10 [wherein etaA is the viscosity (Pa.s) of the halogenated vinyl resin at the extrusion temperature; and n is the viscosity (Pa.s) of the aliphatic polyester resin at the extrusion temperature].

10. 发明专利

JPH07170989A PRODUCTION OF POLY-BETA-HYDROXYBUTYRIC ACID USING MICROORGANISM 失效
公开(公告)号：JPH07170989A
公开(公告)日：1995-07-11
申请号：JP26895992
申请日：1992-10-07
申请人： AGENCY IND SCIENCE TECHN , CHIKYU KANKYO SANGYO GIJUTSU
发明人： SUZUKI TARO , ASADA YASUO , TOKIWA YUTAKA
IPC分类号： C12P7/62 , C12R1/01 , C12R1/89
摘要： PURPOSE:To efficiently produce poly-beta-hydroxybutyric acid from microorganism by using an inorganic substance as a sole carbon source for photosynthesis without necessitating an organic carbon source or a reducing substance such as H2. CONSTITUTION:This process for the microbial production of poly-beta- hydroxybutyric acid comprises the cultivation of blue-green algae under light- irradiation using an inorganic carbon source as the carbon source, the cultivation of the product under a dark anaerobic condition to obtain an organic acid and/or an alcohol, the cultivation of a microorganism capable of accumulating poly-beta-hydroxybutyric acid using the organic acid, etc., as a carbon source to effect the accumulation of poly-beta-hydroxybutyric acid in the microbial cell and the separation of the accumulated poly-beta-hydroxybutyric acid from the cell.

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