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	Provedor de dados BABT (2) Autor Campos,Adriana de (1) Habib,Farzana (1) Jamil,Khalid (1) Khan,Abdul Basit (1) Khattak,Mehmood Iqbal (1) Marconato,José Carlos (1) Martins-Franchetti,Sandra Mara (1) Parvez,Shoukat (1) Tarar,Omer Mukhtar (1) Yasmin,Arfa (1) Mais... Palavra-chave Biodegradable polymers (2) FTIR (1) PHA synthase gene (1) Poly/caprolactone (1) Poly/vinyl alcohol (1) Poly/vinyl chloride (1) Polyhydroxyalkanoates (1) Soil (1) Synthetic polymers (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2013 (1) 2011 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Biodegradation of blend films PVA/PVC, PVA/PCL in soil and soil with landfill leachate BABT Campos,Adriana de; Marconato,José Carlos; Martins-Franchetti,Sandra Mara. This study investigated the biodegradation of blends films of poly(vinyl alcohol)/poly(vinyl chloride) (PVA/PVC) and poly(vinyl alcohol)/poly(caprolactone) (PVA/PCL) blends films prepared with dimethylformamide under a variety of conditions by respirometry, spectrophotometry (FTIR), scanning electron microscopy (SEM), and contact angle. The films were buried in the garden soil and in the soil mixed with the landfill leachate for 120 days at 28ºC. Significant levels of biodegradation were achieved in fairly short incubation times in the soil. The results indicated that PVA was the most biodegradable film in the soil and in the soil with the leachate. Tipo: Info:eu-repo/semantics/article Palavras-chave: Synthetic polymers; Biodegradable polymers; Soil; Poly/vinyl alcohol; Poly/caprolactone; Poly/vinyl chloride. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000600024 Separation of polyhydroxyalkanoates-producing bacterial strains using PHA synthase gene and their evaluation for PHA deposition BABT Khan,Abdul Basit; Khattak,Mehmood Iqbal; Tarar,Omer Mukhtar; Habib,Farzana; Jamil,Khalid; Yasmin,Arfa; Parvez,Shoukat. In this study, a variety of samples were screened for the presence of PHA synthase gene. Results showed that 16 out of 102 isolated were positive for PHA respective genes. The highest prevalence was observed in Pseudomonas aeruginosa. The capability of PHA production was also shown by growing these strains on the defined medium and subsequent analysis using intracellular granules staining and Fourier transform infrared spectroscopy (FT-IR). The microscopic analysis showed that the positive strains accumulated PHA in the cell. The FT-IR analysis showed the presence of PHA peaks in the dried cells as well as in extraction product. P aeruginosa strain P7 showed higher concentration of PHA compared to the others as demonstrated by the highest respective peaks... Tipo: Info:eu-repo/semantics/article Palavras-chave: Polyhydroxyalkanoates; Biodegradable polymers; PHA synthase gene; FTIR. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000400015 Registros recuperados: 2 Primeira ... 1 ... Última

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