JP2003250527A - Method for degrading pva - Google Patents

Method for degrading pva

Info

Publication number
JP2003250527A
JP2003250527A JP2002059039A JP2002059039A JP2003250527A JP 2003250527 A JP2003250527 A JP 2003250527A JP 2002059039 A JP2002059039 A JP 2002059039A JP 2002059039 A JP2002059039 A JP 2002059039A JP 2003250527 A JP2003250527 A JP 2003250527A
Authority
JP
Japan
Prior art keywords
pva
sphingomonas
bacterium
degrading
treatments
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002059039A
Other languages
Japanese (ja)
Inventor
Hidefumi Yamane
英史 山根
Akio Takahashi
明男 高橋
Naohiro Nishiyama
直宏 西山
Katsumi Matsumoto
勝巳 松本
Kosei Yutaka
孝正 豊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kao Corp filed Critical Kao Corp
Priority to JP2002059039A priority Critical patent/JP2003250527A/en
Publication of JP2003250527A publication Critical patent/JP2003250527A/en
Pending legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

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  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Processing Of Solid Wastes (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To degrade and assimilate polyvinyl alcohol (hereinafter referred to as PVA). <P>SOLUTION: This method for degrading the PVA comprises bringing the PVA into contact with Sphingomonas bacterium or its cell component, and a PVA-degrading bacterium. Thereby, the method is useful for degrading and assimilating the PVA on purification treatments such as various waste water treatments, drainage treatments, soil treatments, and compost treatments. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、ポリビニルアルコ
ール(以下、「PVA」ともいう)の分解・資化に関す
る。
TECHNICAL FIELD The present invention relates to decomposition and assimilation of polyvinyl alcohol (hereinafter, also referred to as “PVA”).

【0002】[0002]

【従来の技術及び発明が解決しようとする課題】日常生
活や生産活動に伴って排出される廃棄物の量は年々増加
する傾向にあり、特にプラスチック廃棄物は、微生物分
解性が悪いために埋立地で半永久的に残留し、嫌気性消
化やコンポスト化等の生物学的方法による廃棄物減量化
を妨げる原因となっている。
2. Description of the Related Art The amount of waste discharged along with daily life and production activities tends to increase year by year. Especially, plastic waste is landfilled because of its poor biodegradability. It remains semi-permanently on the ground and is a cause of hindering waste reduction by biological methods such as anaerobic digestion and composting.

【0003】近年、地球規模での環境問題に対する関心
が高まり、自然環境中で微生物や酵素により分解される
生分解性高分子の研究が盛んに行われ、実用化されつつ
ある。中でも、PVA樹脂は、微生物や酵素により比較
的容易に分解され、分解副生成物が自然環境に悪影響を
与えないことから注目を浴びている。
In recent years, interest in environmental problems has increased on a global scale, and biodegradable polymers which are decomposed by microorganisms and enzymes in the natural environment have been actively researched and put into practical use. Among them, PVA resins have attracted attention because they are relatively easily decomposed by microorganisms and enzymes, and decomposition byproducts do not adversely affect the natural environment.

【0004】一方、PVAに対して分解能を有する微生
物としては、シュードモナス属細菌、エンテロバクター
属細菌、アシネトバクター属細菌、コリネバクテリウム
属細菌、ロードコッカス属細菌、カセオバクター属細菌
等が知られているが(特公昭55−1791号公報、特
公昭57−27713号公報、特公昭57−27714
号公報、特開平8−140667号公報、特開平7−1
08297号公報等)、これまでに報告されている微生
物は、PVAの分解・資化能を有していても、変性PV
Aに対する分解能が必ずしも十分でないために、相対的
に分解速度が遅れるという問題があった。
On the other hand, as microorganisms capable of decomposing PVA, Pseudomonas bacteria, Enterobacter bacteria, Acinetobacter bacteria, Corynebacterium bacteria, Rhodococcus bacteria, Caseobacter bacteria and the like are known. (Japanese Patent Publication No. 55-1791, Japanese Patent Publication No. 57-27713, Japanese Patent Publication No. 57-27714)
Japanese Patent Laid-Open No. 8-140667 and Japanese Patent Laid-Open No. 7-1
No. 08297, etc.), the microorganisms reported so far are modified PV even if they have the ability to decompose and assimilate PVA.
Since the resolution for A is not always sufficient, there is a problem that the decomposition rate is relatively delayed.

【0005】本発明は、変性PVAに対しても優れた分
解・資化能を有するPVA分解菌及び当該菌を用いたP
VAの分解・資化方法を提供することを目的とする。
The present invention is a PVA-degrading bacterium which has an excellent ability to decompose and assimilate modified PVA, and a P using the bacterium.
The purpose is to provide a method for disassembling and assimilating VA.

【0006】[0006]

【課題を解決するための手段】本発明者らは、河川、土
壌等の自然界から広く微生物を探索したところ、スフィ
ンゴモナス(Sphingomonas)属に属する細菌が変性PVA
に対しても優れた分解・資化能を有し、これを用いるこ
とにより、多種類のPVAを含んだ排液等を良好に浄化
処理できることを見出した。
Means for Solving the Problems The present inventors have extensively searched for microorganisms in nature such as rivers and soils, and found that bacteria belonging to the genus Sphingomonas are denatured PVA.
It has been found that it has an excellent decomposition and assimilation ability, and that by using it, it is possible to satisfactorily purify an effluent containing many kinds of PVA.

【0007】すなわち本発明は、スフィンゴモナス属細
菌又はその菌体成分をPVAに接触させるPVAの分解
方法を提供するものである。
That is, the present invention provides a method for degrading PVA in which a Sphingomonas genus bacterium or a bacterial cell component thereof is brought into contact with PVA.

【0008】また本発明は、スフィンゴモナス属細菌又
はその菌体成分をPVAを含有する排水、排液又は土壌
に接触させる排水、排液又は土壌の浄化処理方法を提供
するものである。
The present invention also provides a method for purifying wastewater, drainage or soil in which a Sphingomonas bacterium or its bacterial component is brought into contact with drainage, drainage or soil containing PVA.

【0009】更に本発明は、スフィンゴモナス カプス
ラータ UP−3(FERM−P18699号)として
寄託されたPVA分解菌を提供するものである。
The present invention further provides a PVA-degrading bacterium deposited as Sphingomonas capsulata UP-3 (FERM-P18699).

【0010】[0010]

【発明の実施の形態】本発明におけるポリビニルアルコ
ールとしては、ポリ酢酸ビニルをけん化することにより
得られるPVAの他に、いわゆる変性PVA、例えば酢
酸ビニルの重合の際に不飽和ジカルボン酸(例えば、マ
レイン酸、フマール酸、グルタコン酸、アリルマロン
酸、これらの無水物、またはこれらのモノアルキルエス
テル)を共重合させたもの、PVAにエチレンオキサイ
ド等の環状酸無水物を反応させたもの、PVAを塩基性
の置換基で変性したもの等が挙げられる。本発明の細菌
を用いれば、PVAの重合度や完全けん化、部分けん化
を問わず、これを分解・資化することができるが、分解
性に優れるPVAとしては、重合度500〜3500
で、けん化度86〜96%のものが挙げられ、また変性
PVAとしては、マレイン酸変性PVA、エチレンオキ
サイド変性PVA等が挙げられる。
BEST MODE FOR CARRYING OUT THE INVENTION As the polyvinyl alcohol in the present invention, in addition to PVA obtained by saponifying polyvinyl acetate, so-called modified PVA, for example, unsaturated dicarboxylic acid (for example, maleic acid) during polymerization of vinyl acetate is used. Acid, fumaric acid, glutaconic acid, allyl malonic acid, their anhydrides, or their monoalkyl esters) copolymerized, PVA reacted with cyclic acid anhydride such as ethylene oxide, PVA basic And the like, which are modified with the substituents. When the bacterium of the present invention is used, it can be decomposed and assimilated regardless of the degree of polymerization of PVA, complete saponification, or partial saponification, but PVA having excellent degradability has a polymerization degree of 500 to 3500.
Examples of the modified PVA include maleic acid-modified PVA, ethylene oxide-modified PVA, and the like.

【0011】本発明の細菌は、スフィンゴモナス属に属
し、上記のPVAに対して分解・資化能を有するもので
あればよく、例えばスフィンゴモナス クロロフェノリ
カ、スフィンゴモナス テラエが挙げられ、このうちU
P−3株が好ましい。
The bacterium of the present invention may belong to the genus Sphingomonas and has the ability to decompose and assimilate PVA as described above, and examples thereof include Sphingomonas chlorophenolica and Sphingomonas terae. U
P-3 strain is preferred.

【0012】UP−3株は、河川水から新たに分離した
菌株であり、以下に示す性質を有する。 (2)菌学的性質 (A)形態学的性質 (a)細胞形態 :不規則桿菌(0.6×2.0〜3.
0μm) (b)胞子の有無:− (c)運動性 :− (d)グラム染色:− (B)培養的性質 (a)普通寒天培地上で、黄色、全縁滑らか、低凸状、
光沢あり、円形コロニーを形成する。 (b)MacConkey寒天での生育性:−
The UP-3 strain is a strain newly isolated from river water and has the following properties. (2) Mycological properties (A) Morphological properties (a) Cell morphology: Irregular bacilli (0.6 × 2.0 to 3.
0 μm) (b) Presence / absence of spores :-( c) Motility:-(d) Gram stain :-( B) Cultural properties (a) Yellow on the agar medium, smooth on all edges, low convex,
Glossy, forming round colonies. (B) Viability on MacConkey agar:-

【0013】(C)生理学的性質 (a)カタラーゼ :+ (b)オキシダーゼ :+ (c)OFテスト :− (d)硝酸塩還元 :− (e)インドール産生 :− (f)ブドウ糖酸性化 :− (g)アルギニンジヒドロラーゼ:− (h)ウレアーゼ :− (i)エスクリン加水分解 :− (j)ゼラチン加水分解 :− (k)β−ガラクトシダーゼ :+ (l)酸産生; ラムノース :+ グリセリン :+ (m)DNase :+ (n)H2S :+(C) Physiological properties (a) Catalase: + (b) Oxidase: + (c) OF test:-(d) Nitrate reduction:-(e) Indole production:-(f) Glucose acidification:- (G) Arginine dihydrolase:-(h) urease:-(i) Esculin hydrolysis:-(j) Gelatin hydrolysis:-(k) β-galactosidase: + (l) Acid production; Rhamnose: + Glycerin: + (M) DNase: + (n) H 2 S: +

【0014】(D)資化性 (a)ブドウ糖 :+ (b)L−アラビノース :+ (c)D−マンノース :− (d)D−マンニトール :− (e)N−アセチル−D−グルコサミン:− (f)マルトース :− (g)グルコン酸カリウム :− (h)n−カプリン酸 :− (i)アジピン酸 :+ (j)dl−リンゴ酸 :− (k)クエン酸ナトリウム :− (l)酢酸フェニル :−(D) Assimilation (A) Glucose: + (B) L-arabinose: + (C) D-mannose:- (D) D-mannitol:- (E) N-acetyl-D-glucosamine:- (F) Maltose:- (G) Potassium gluconate:- (H) n-capric acid:- (I) Adipic acid: + (J) dl-malic acid:- (K) Sodium citrate:- (L) Phenyl acetate:-

【0015】以上の試験は、下記の文献1及び2に記載
された方法および同定キット・アピ20NE(日本ビオ
メリュー・バイテック株式会社)により行った。 文献1;Barrow, G. l. and Feltham, R. K. A.(1996)
Cowan and Steel's Manual for the ldentification of
Medical Bacteria. 坂崎利一監訳,近代出版・東京 文献2;坂崎利一,吉崎悦郎,三木寛二(1988)新細菌培
地学講座・下I<第二版>近代出版・東京
The above-mentioned tests were carried out by the method and the identification kit Api 20NE (Japan BioMerieux Vitec Co., Ltd.) described in the following documents 1 and 2. Reference 1; Barrow, G. l. And Feltham, RKA (1996)
Cowan and Steel's Manual for the ldentification of
Medical Bacteria. Translated by Toshikazu Sakazaki, Modern Publishing, Tokyo Ref. 2; Riichi Sakazaki, Etsuro Yoshizaki, Kanji Miki (1988) New Bacterial Media Science Course, Second I <Second Edition> Modern Publishing, Tokyo

【0016】(2)遺伝学的性質 (a)16SrDNAの解析 UP−3株を普通寒天培地(日水製薬)に植菌し、30
℃での培養物からDNAを抽出し、PCRによる増幅、
PCR産物の精製を行った後、MicroSeqTM50016SrDNA B
acterial Sequencing Kit(Applied Biosystems社)を
用いてサイクルシークエンス反応を行って16SrDN
Aの全塩基配列を決定し、MicroSeqTMのデータベースを
用いて16SrDNA解析を行った。 その結果、本発明のUP−3株の16SrDNAは、ス
フィンゴモナス カプスラータ Sphingomonas capsulat
a(E.Yabuuchi et al.,Microbiol.Imunol.,34,99-119,19
90)のそれと97.19%の相同性を有していた。
(2) Genetic properties (a) Analysis of 16S rDNA The UP-3 strain was inoculated on ordinary agar medium (Nissui Pharmaceutical Co., Ltd.) and
DNA is extracted from the culture at ℃, amplification by PCR,
After purification of the PCR product, MicroSeq 50016S rDNA B
Cycle sequencing reaction was performed using acterial Sequencing Kit (Applied Biosystems) to obtain 16SrDN.
The entire nucleotide sequence of A was determined, and 16S rDNA analysis was performed using the MicroSeq database. As a result, the 16S rDNA of the UP-3 strain of the present invention was found to be Sphingomonas capsulat
a (E.Yabuuchi et al., Microbiol.Imunol., 34,99-119,19
It had 97.19% homology with that of 90).

【0017】以上のことから、本発明のUP−3株はス
フィンゴモナス カプスラータと同種の菌株とするのが
妥当である。しかし、スフィンゴモナス属に属する微生
物で従来、PVAを分解する微生物は全く報告されてい
ない。以上の結果から、UP−3株はスフィンゴモナス
カプスラータ種に属する新菌株と認められる。従っ
て、これをスフィンゴモナス カプスラータ(Sphingom
onas capsulata) UP−3と命名し、2002年2月
7日独立行政法人産業技術総合研究所特許生物寄託セン
ターにスフィンゴモナス カプスラータ UP−3とし
て寄託した(FERM P−18699号)。
From the above, it is appropriate that the UP-3 strain of the present invention is a strain of the same species as Sphingomonas capsulata. However, no microorganisms belonging to the genus Sphingomonas that decompose PVA have been reported so far. From the above results, the UP-3 strain is recognized as a new strain belonging to Sphingomonas capsulata species. Therefore, this is Sphingomonas capsulata ( Sphingom
onas capsulata ) UP-3, and deposited on February 7, 2002, at the Patent Organism Depositary Center, National Institute of Advanced Industrial Science and Technology, as Sphingomonas capsulata UP-3 (FERM P-18699).

【0018】本発明のスフィンゴモナス カプスラータ
UP−3株は、例えば以下の様にして分離される。す
なわち、河川、活性汚泥、土壌、海水、湖水等の試料
を、メンブランフィルター(孔径0.1〜0.5μm)
で濾過し、メンブランフィルターをPVA液体培地中に
浸して超音波洗浄機にて数十秒間処理した後、振とう培
養してPVA分解菌の有無を判断する。その後、その培
養液を適当な培地に撒き、コロニーを形成させる。得ら
れたコロニーをPVAを含む低栄養培地に接種し、PV
A分解能を有する菌を選別分離すればよい。
The Sphingomonas capsulata UP-3 strain of the present invention is isolated, for example, as follows. That is, samples of rivers, activated sludge, soil, seawater, lake water, etc., are filtered with a membrane filter (pore size 0.1-0.5 μm).
The membrane filter is immersed in a PVA liquid medium, treated with an ultrasonic cleaner for several tens of seconds, and then shake-cultured to determine the presence or absence of PVA-degrading bacteria. Then, the culture solution is spread on an appropriate medium to form colonies. The obtained colonies were inoculated into a low nutrient medium containing PVA,
Bacteria having A resolution can be selected and separated.

【0019】本発明細菌は、後記実施例に示すように変
性PVAを含む多種類のPVAを良好に分解・資化でき
る。従って、スフィンゴモナス属細菌又はその菌体成分
を、例えば家庭排水、工場排水、排液等の産業排棄物、
土壌等のPVA含有物に接触させることにより、これを
浄化処理することができる。ここで、菌体成分として
は、スフィンゴモナス属に属する菌の培養菌体、固定化
した菌体、菌体抽出物、固定化した菌体抽出物、菌体抽
出液、培養液、培養瀘液等が含まれる。
The bacterium of the present invention can satisfactorily decompose and assimilate various types of PVA including modified PVA as shown in Examples below. Therefore, Sphingomonas genus bacteria or bacterial components thereof, for example, domestic wastewater, industrial wastewater, industrial waste such as drainage,
This can be purified by contacting it with a PVA-containing material such as soil. Here, as the bacterial cell component, cultured bacterial cells of a bacterium belonging to the genus Sphingomonas, immobilized bacterial cells, bacterial cell extract, immobilized bacterial cell extract, bacterial cell extract, culture solution, culture filtrate Etc. are included.

【0020】本発明の微生物を用いたPVAの分解方法
としては、例えば排水浄化の場合には個別発生源に本発
明細菌又はその菌体成分を固定した処理装置を取り付け
る手段、排水処理場において本発明細菌又はその菌体成
分を添加する手段、土壌浄化の場合には土壌に本発明細
菌又はその菌体成分を施用する手段等が挙げられる。ま
た、環境浄化の場合には、自然環境の河川や湖沼に本発
明細菌又はその菌体成分を施用する手段を採用すること
ができる。更にPVAを含有する製品に本発明細菌又は
その菌体成分を配合しておいてもよい。尚、斯かるPV
A分解処理は、pH4〜10、好ましくはpH5〜8、
処理温度5〜40℃、好ましくは15〜35℃で、通常
6時間〜10日、好ましくは12時間〜5日行うのがよ
い。
As a method for decomposing PVA using the microorganisms of the present invention, for example, in the case of purification of waste water, a means for attaching a treatment device having the bacteria of the present invention or its bacterial cell component fixed to an individual generation source, a waste water treatment plant Examples include means for adding the invention bacterium or bacterial cell component thereof, and means for applying the bacterium of the present invention or bacterial cell component thereof to soil in the case of soil remediation. Further, in the case of environmental purification, means for applying the bacterium of the present invention or its bacterial component to a river or lake in a natural environment can be adopted. The PVA-containing product may further contain the bacterium of the present invention or a bacterial cell component thereof. In addition, such PV
A decomposition treatment is performed at pH 4 to 10, preferably pH 5 to 8,
The treatment temperature is 5 to 40 ° C., preferably 15 to 35 ° C., and usually 6 hours to 10 days, preferably 12 hours to 5 days.

【0021】[0021]

【実施例】次に実施例を挙げて本発明を更に詳細に説明
する。 実施例1 スフィンゴモナス カプスラータ UP−3
株の単離 河川水500mLを数枚(2〜3枚)のメンブレンフィ
ルター(孔径0.1〜0.5μm)にて濾過し、得られ
たフィルターを適当な容器(ビーカーなど)に入れたP
VA培地(表1)50mLに浸した。フィルターとPV
A培地が入ったビーカーを適当な超音波洗浄機に浸し、
適当な時間(30秒〜1分間)超音波処理を行った。上
記操作にて得たビーカー中のPVA培地を無菌的に50
0mL振盪フラスコに分注し、30℃にて振盪培養し
た。2〜5日後、濁りが認められた培養液の一部を新し
いPVA培地に無菌的に接種した。この操作を2〜3回
繰り返した後、培溶液の一部をPVA寒天培地(表1)
に塗沫し、30℃にて培養した。2〜5日間培養した
後、生育が認められたプレートから単一コロニーを選択
し、PVA分解能の確認および同定試験を行い、スフィ
ンゴモナス カプスラータUP−3株を得た。
The present invention will be described in more detail with reference to the following examples. Example 1 Sphingomonas capsulata UP-3
Isolation of strain 500 mL of river water was filtered through several (2 to 3) membrane filters (pore size 0.1 to 0.5 μm), and the obtained filter was placed in an appropriate container (beaker, etc.)
It was immersed in 50 mL of VA medium (Table 1). Filter and PV
Immerse the beaker containing A medium in a suitable ultrasonic cleaner,
Ultrasonic treatment was performed for an appropriate time (30 seconds to 1 minute). Aseptically remove the PVA medium in the beaker obtained by the above operation to 50
It was dispensed into a 0 mL shake flask and shake-cultured at 30 ° C. After 2 to 5 days, a part of the culture solution in which turbidity was observed was aseptically inoculated into a new PVA medium. After repeating this operation 2 to 3 times, a part of the culture solution was added to the PVA agar medium (Table 1).
The mixture was smeared on and cultured at 30 ° C. After culturing for 2 to 5 days, a single colony was selected from the plate in which growth was observed, and PVA decomposing ability was confirmed and an identification test was performed to obtain Sphingomonas capsulata UP-3 strain.

【0022】[0022]

【表1】 [Table 1]

【0023】実施例2 スフィンゴモナス カプスラー
タ UP−3株を用いたPVAの分解・資化 前培養として、適当量(50〜100mL)のPVA培
地が入った振盪フラスコにPVA寒天培地に生育したU
P−3株を白金耳にて接種し、30℃にて振盪培養を行
った。1〜2日後、濁度が増加したことを確認した培溶
液の一部を、新しいPVA培地に無菌的に接種し、30
℃にて振盪培養を行った。経時的に培養液の一部を抜き
取り、濁度(OD660)およびPVA濃度(HPL
C)を測定した。その結果、UP−3株はPVAを効率
的に分解することが示された(図1)。
Example 2 As a pre-decomposition / assimilation culture of PVA using Sphingomonas capsulata UP-3 strain, U grown on PVA agar in a shake flask containing an appropriate amount (50 to 100 mL) of PVA medium.
The P-3 strain was inoculated with a platinum loop and shake culture was performed at 30 ° C. After 1-2 days, aseptically inoculate a portion of the culture solution confirmed to have increased turbidity into a new PVA medium,
Shaking culture was performed at ° C. A part of the culture solution was withdrawn with time, and the turbidity (OD660) and PVA concentration (HPL
C) was measured. As a result, it was shown that the UP-3 strain efficiently decomposes PVA (Fig. 1).

【0024】[0024]

【発明の効果】本発明のPVA分解方法は、各種排水、
排液、土壌等の浄化処理、コンポスト処理におけるPV
Aの分解・資化に有用である。
The PVA decomposition method of the present invention is applicable to various drainage,
PV in wastewater, soil purification, composting
It is useful for disassembling and assimilating A.

【図面の簡単な説明】[Brief description of drawings]

【図1】スフィンゴモナス カプスラータ UP−3株
のPVA分解資化を示す図である。
FIG. 1 is a diagram showing PVA-degrading assimilation of Sphingomonas capsulata UP-3 strain.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) C08J 11/10 C12R 1:01 //(C12N 1/20 C08L 29:00 C12R 1:01) B09B 3/00 E C08L 29:00 (72)発明者 西山 直宏 栃木県芳賀郡市貝町赤羽2606 花王株式会 社研究所内 (72)発明者 松本 勝巳 栃木県芳賀郡市貝町赤羽2606 花王株式会 社研究所内 (72)発明者 豊 孝正 栃木県芳賀郡市貝町赤羽2606 花王株式会 社研究所内 Fターム(参考) 4B065 AA01X AC20 BB06 CA55 4D004 AA07 AA41 AB05 AC07 CA18 CC07 4D040 DD03 DD12 DD22 4F301 AA19 CA09 CA38 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) C08J 11/10 C12R 1:01 // (C12N 1/20 C08L 29:00 C12R 1:01) B09B 3 / 00 E C08L 29:00 (72) Inventor Naohiro Nishiyama 2606 Akabane, Kai-cho, Haga-gun, Tochigi Prefecture Kao Stock Company Research Institute (72) Inventor Katsumi Matsumoto 2606 Akabane, Kai-cho, Haga-gun, Tochigi Prefecture Kao Stock Company Research Institute (72 ) Inventor Takamasa Toyoh 2606 Akabane, Kaiga-cho, Haga-gun, Tochigi Prefecture F-term inside Kao Institute of Stock Company (reference) 4B065 AA01X AC20 BB06 CA55 4D004 AA07 AA41 AB05 AC07 CA18 CC07 4D040 DD03 DD12 DD22 4F301 AA19 CA09 CA38

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 スフィンゴモナス属細菌又はその菌体成
分をポリビニルアルコールに接触させるポリビニルアル
コールの分解方法。
1. A method for degrading polyvinyl alcohol, which comprises contacting Sphingomonas genus bacteria or bacterial cell components thereof with polyvinyl alcohol.
【請求項2】 スフィンゴモナス属細菌又はその菌体成
分をポリビニルアルコールを含有する排水、排液又は土
壌に接触させる排水、排液又は土壌の浄化処理方法。
2. A method for purifying wastewater, drainage or soil, which comprises contacting a sphingomonas bacterium or its bacterial component with drainage, drainage or soil containing polyvinyl alcohol.
【請求項3】 スフィンゴモナス属細菌が、スフィンゴ
モナス カプスラータである請求項1又は2記載の方
法。
3. The method according to claim 1, wherein the bacterium belonging to the genus Sphingomonas is Sphingomonas capsulata.
【請求項4】 スフィンゴモナス カプスラータ UP
−3(FERM−P18699号)として寄託されたポ
リビニルアルコール分解菌。
4. Sphingomonas capsulata UP
-3 (FERM-P18699) deposited polyvinyl alcohol-decomposing bacterium.
JP2002059039A 2002-03-05 2002-03-05 Method for degrading pva Pending JP2003250527A (en)

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1571202A1 (en) * 2004-03-01 2005-09-07 Fuji Photo Film Co. Ltd. PVA-decomposing bacteria and method for decomposing PVA
JP2005278639A (en) * 2004-03-01 2005-10-13 Fuji Photo Film Co Ltd Pva-degrading bacterium and method for degrading pva

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1571202A1 (en) * 2004-03-01 2005-09-07 Fuji Photo Film Co. Ltd. PVA-decomposing bacteria and method for decomposing PVA
JP2005278639A (en) * 2004-03-01 2005-10-13 Fuji Photo Film Co Ltd Pva-degrading bacterium and method for degrading pva

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