Degradation of polyester polyurethane by newly isolated Pseudomonas aeruginosa strain MZA-85 and analysis of degradation products by GC–MS

Shah, Zulfiqar Ali; Hasan, Fariha; Krumholz, Lee R.; Aktas, Deniz F.; Shah, Aamer Ali

doi:10.1016/j.ibiod.2012.11.009

Cited by 53 publications

(39 citation statements)

References 33 publications

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“…In addition, P. aeruginosa strain MZA‐85 was found to degrade and metabolize polyester PU (Shah et al . ). Extensive degradation of Impranil DLN was also accomplished by P. protegens Pf‐5 and other P. protegens strains (Hung et al .…”

Section: Relevance Of Pseudomonas Sp To Plastic Biodegradationmentioning

confidence: 97%

“…; Shah et al . ). The term polyurethanase is often used to describe enzymes responsible for the degradation of PU (Ruiz et al .…”

Section: Plastic Degradation By Extracellular and Intracellular Enzymesmentioning

confidence: 97%

“…It was reported that P. aeruginosa AKS9 can utilize both PU diol and Impranil DLN TM , a commercial variety of polyester PU, as a sole carbon source (Mukherjee et al 2011). In addition, P. aeruginosa strain MZA-85 was found to degrade and metabolize polyester PU (Shah et al 2013). Extensive degradation of Impranil DLN was also accomplished by P. protegens Pf-5 and other P. protegens strains (Hung et al 2016).…”

Section: Relevance Of Pseudomonas Sp To Plastic Biodegradationmentioning

confidence: 98%

“…Following the activity of a PVA oxidase, which introduced acetyl groups in the PVA, P. vesicularis PD was able to assimilate the altered PVA into the cell and hydrolyse it further with an intracellular esterase (Kawai and Hu 2009). Polyurethane-degrading enzymes are thought to be primarily extracellular esterases or proteases that are either membrane-bound or secreted extracellularly (Mukherjee et al 2011;Cregut et al 2013;Shah et al 2013). The term polyurethanase is often used to describe enzymes responsible for the degradation of PU (Ruiz et al 1999;Stern and Howard 2000).…”

Section: Plastic Degradation By Extracellular and Intracellular Enzymesmentioning

confidence: 99%

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Degradation and metabolism of synthetic plastics and associated products byPseudomonassp.: capabilities and challenges

2017

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SummarySynthetic plastics, which are widely present in materials of everyday use, are ubiquitous and slowly-degrading polymers in environmental wastes. Of special interest are the capabilities of microorganisms to accelerate their degradation. Members of the metabolically diverse genus Pseudomonas are of particular interest due to their capabilities to degrade and metabolize synthetic plastics. Pseudomonas species isolated from environmental matrices have been identified to degrade polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyurethane, polyethylene terephthalate, polyethylene succinate, polyethylene glycol and polyvinyl alcohol at varying degrees of efficiency. Here, we present a review of the current knowledge on the factors that control the ability of Pseudomonas sp. to process these different plastic polymers and their by-products. These factors include cell surface attachment within biofilms, catalytic enzymes involved in oxidation or hydrolysis of the plastic polymer, metabolic pathways responsible for uptake and assimilation of plastic fragments and chemical factors that are advantageous or inhibitory to the biodegradation process. We also highlight future research directions required in order to harness fully the capabilities of Pseudomonas sp. in bioremediation strategies towards eliminating plastic wastes.

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Section: Relevance Of Pseudomonas Sp To Plastic Biodegradationmentioning

confidence: 97%

“…; Shah et al . ). The term polyurethanase is often used to describe enzymes responsible for the degradation of PU (Ruiz et al .…”

Section: Plastic Degradation By Extracellular and Intracellular Enzymesmentioning

confidence: 97%

Section: Relevance Of Pseudomonas Sp To Plastic Biodegradationmentioning

confidence: 98%

Section: Plastic Degradation By Extracellular and Intracellular Enzymesmentioning

confidence: 99%

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Degradation and metabolism of synthetic plastics and associated products byPseudomonassp.: capabilities and challenges

2017

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“…Gold coating was carried out using vaporization in vacuum to make the sample conductive. The image of the sample was compared with test sample [2,20].…”

Section: Analysis Of Hdpe Film Using Scanning Electron Microscope (Sem)mentioning

confidence: 99%

Biodegradation of high density polyethylene using Streptomyces species

Farzi¹,

Dehnad²,

Shirzad³

et al. 2017

JCLM

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Antioxidative effects of alkyl esters of sinapic acid on flaxseed oil and its fatty acid methyl esters

Arslan,

Polak,

Poklar Ulrih

2024

J Americ Oil Chem Soc

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Alkyl esters of sinapic acid were enzymatically synthesized by using hexanol CH3(CH2)5OH and palmitoyl chloride CH3(CH2)14COCl as acyl donors. The lipid oxidation retarding activities of these conjugates were determined using different methods in two lipid media; bulk flaxseed oil and its fatty acid methyl esters (FAME). Palmitoyl sinapate more efficiently slowed down the formation of primary and secondary oxidation products in both lipid media. In terms of DPPH radical scavenging activity, β‐carotene bleaching and TEAC assays, it provided higher activity compared to hexyl ester in FAME. Hexyl ester was more active in bulk oil in terms of antioxidant activity analyses. The alkyl side chain length of these molecules had an impact on their antioxidative activity and this effect differed according to the environment in which they were used. The conjugates remained more stable on storage compared to the phenolic compounds originally found in the oil samples.

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Degradation of polyester polyurethane by newly isolated Pseudomonas aeruginosa strain MZA-85 and analysis of degradation products by GC–MS

Cited by 53 publications

References 33 publications

Degradation and metabolism of synthetic plastics and associated products byPseudomonassp.: capabilities and challenges

Degradation and metabolism of synthetic plastics and associated products byPseudomonassp.: capabilities and challenges

Biodegradation of high density polyethylene using Streptomyces species

Antioxidative effects of alkyl esters of sinapic acid on flaxseed oil and its fatty acid methyl esters

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