Biochemistry of microbial polyvinyl alcohol degradation

  title={Biochemistry of microbial polyvinyl alcohol degradation},
  author={Fusako Kawai and Xiaoping Hu},
  journal={Applied Microbiology and Biotechnology},
Effect of minor chemical structures such as 1,2-diol content, ethylene content, tacticity, a degree of polymerization, and a degree of saponification of the main chain on biodegradability of polyvinyl alcohol (PVA) is summarized. Most PVA-degraders are Gram-negative bacteria belonging to the Pseudomonads and Sphingomonads, but Gram-positive bacteria also have PVA-degrading abilities. Several examples show symbiotic degradation of PVA by different mechanisms. Penicillium sp. is the only reported… Expand
Poly(vinyl alcohol): review of its promising applications and insights into biodegradation
Poly(vinyl alcohol) (PVA) is a water soluble synthetic polymer, with a backbone composed only of carbon atoms and is biodegradable under both aerobic and anaerobic conditions. This polymer can beExpand
A Novel Esterase, DacApva, from Comamonas sp. Strain NyZ500 with Deacetylation Activity for the Acetylated Polymer Polyvinyl Alcohol
The DacApva reported here performs PVA deacetylation under mild conditions, so it has great potential to be developed into an eco-friendly biocatalyst for biotransformation of PVA derivatives and other acetylated compounds. Expand
Biodegradation of Polyvinyl Alcohol by Thai Indigenous Mixed Microbial Culture
PVA is biodegradable plastic and a water-soluble synthetic polymer that plays a significant role in industry. A large amount of PVA in wastewater causes heavy environmental pollution in terms ofExpand
The first demonstration of a novel isolated fungus Eutypella sp. BJ associated with the biodegradation of polyvinyl alcohol
The aim of this work is to study the potential degradation of polyvinyl alcohol (PVA) by a novel fungus Eutypella sp. BJ isolated from soil compost. When it was cultured on a semi-synthetic mediumExpand
Structural Insights into Enzymatic Degradation of Oxidized Polyvinyl Alcohol
  • Yu Yang, T. Ko, +9 authors G. Du
  • Chemistry, Medicine
  • Chembiochem : a European journal of chemical biology
  • 2014
Novel α/β‐hydrolase structures of oxidized PVA hydrolase (OPH) from two known PVA‐degrading organisms, including complexes with substrate analogues, acetylacetone and caprylate are reported, suggesting a double‐oxyanion‐hole mechanism, previously only found in thiolase cleaving β‐ketoacyl‐CoA. Expand
Degradation and metabolism of synthetic plastics and associated products by Pseudomonas sp.: capabilities and challenges
A review of the current knowledge on the factors that control the ability of Pseudomonas sp. Expand
Yeast Extract Promotes Cell Growth and Induces Production of Polyvinyl Alcohol-Degrading Enzymes
The results suggest that the new strategy of four-point yeast extract addition could benefit PVAases production. Expand
Research on the Screening of Degrading Fungi for Poly (vinyl alcohol) Film and the Effect of Additives
Poly (vinyl alcohol) (PVA) was used as the sole carbon source in the medium to isolate PVA-degrading fungi from an activated sludge which obtained from water-soluble PVA packaging film factory. TheExpand
Polyvinyl alcohol degradation by Bacillus cereus RA23 from oil sludge sample
FTIR studies showed that the carboxylic acids (possibly including aldehyde or ketone) could be the intermediate product of PVA biodegradation, and the investigation of strain RA23 for PVA degradation will provide important information to facilitate the removal of wastewater pollution in industrial zones. Expand
Isolation and characterisation of starch/polyvinyl alcohol degrading fungi from aerobic compost environment
Abstract Two fungi, responsible for the degradation of starch/polyvinyl alcohol (PVA) biocomposite films were isolated from aerobic compost environment by extensive screening. ITS (InternalExpand


Isolation and characterization of a novel poly(vinyl alcohol)-degrading bacterium, Sphingopyxis sp. PVA3
The results strongly suggest that the initial oxidation of PVA is mediated via a PVA oxidase, and not a PQQ-dependent dehydrogenase. Expand
Degradation of polyvinyl alcohol by Sphingomonas sp. SA3 and its symbiote
A new strain, SA3, was discovered which formed yellow colonies and used PVA as the sole carbon and energy source and needs a symbiote strain for PVA degradation as a growth factor producer. Expand
A modified method for isolating poly(vinyl alcohol)-degrading bacteria and study of their degradation patterns
An addition of catalase or peroxidase into an agar plate containing poly(vinyl alcohol) (PVA), was effective for the isolation of PVA-degrading microorganisms. A Gram-negative bacterium, strain TK-2Expand
Purification and Some Properties of Polyvinyl Alcoholdegrading Enzyme Produced by Pseudomonas O-3
Purification was conducted on polyvinyl alcohol (PVA) degrading enzyme produced and secreted into the culture medium by Pseudomonas O–3 strain. The enzyme was found to separate into several fractionsExpand
Some Characteristics of Pseudomonas O-3 which Utilizes Polyvinyl Alcohol
Pseudomonas 0–3 strain which was isolated from soil can grow on polyvinyl alcohol (PVA) as a sole carbon source. When 0.5 per cent of PVA (500, 1500 or 2000) was employed as the carbon source in theExpand
Purification and characterization of an esterase involved in poly(vinyl alcohol) degradation by Pseudomonas vesicularis PD.
An esterase catalyzing the hydrolysis of acetyl ester moieties in poly(vinyl alcohol) was purified 400-fold to electrophoretic homogeneity from the cytoplasmic fraction of Pseudomonas vesicularis PD,Expand
Oxidation of Secondary Alcohols by Polyvinyl Alcohol-degrading Enzyme Produced by Pseudomonas O–3
Some characteristics of polyvinyl alcohol (PVA) degrading enzyme produced by Pseudomonas O–3 which utilizes PVA as the sole carbon source were examined. The enzyme contains 1 atom iron per moleculeExpand
Cell surface structure enhancing uptake of polyvinyl alcohol (PVA) is induced by PVA in the PVA-utilizing Sphingopyxis sp. strain 113P3
The average molecular size of PVA in the culture supernatant or cell-bound PVA was gradually shifted higher, suggesting that lower molecular size molecules are degraded faster, and a dent on the cell surface seems to be related to the uptake of P VA. Expand
Isolation and Culture Characterization of a New Polyvinyl Alcohol-Degrading Strain: Penicillium sp. WSH02-21
A fungal strain able to grow on polyvinyl alcohol (PVA) as sole carbon source was isolated from activated sludge of a textile factory. Morphological characteristics showed that this strain belongedExpand
Purification and Characterization of Poly(vinyl alcohol) Dehydrogenase from Pseudomonas sp. 113P3
Pseudomonas sp. 113P3, when cultured on a medium containing poly(vinyl alcohol) (PVA) in the presence of pyroroquinoline quinone (PQQ), produced a high level of a PV A dehydrogenase (PV ADH). ThisExpand