Formation of Biofilms and Production of Enzymes by Bacillus subtilis on Surfaces of Polyethylene Terephtalate Simulating Degradation

Current Research Topics in Applied Microbiology and Microbial Biotechnology, pp. 254-258 (2009) No AccessFormation of Biofilms and Production of Enzymes by Bacillus subtilis on Surfaces of Polyethylene Terephtalate Simulating DegradationM. A. T. Jara, A. A. Antunes, N. S. E. Barreto, R. D. Rufino, N. E. Duran, C. D. C. Albuquerque, A. E. Nascimento, and G. M. Campos-TakakiM. A. T. JaraMaster degree in Development of Environmental Processes, Catholic University of Pernambuco – UNICAP, Recife-PE, Brazil, A. A. AntunesDoctorate in Biological Sciences, UFPE/Recife-PE, Brazil, N. S. E. BarretoInstitute of Sciences of the Sea-Federal LABOMAR, Universidade of Ceará, Fortaleza, CE, Brazil, R. D. RufinoDoctorate degree in Fungal Biology, Federal University of Pernambuco, Recife-PE, 50.670-420, Brazil, N. E. DuranChemistry Institute, UNICAMP-São Paulo and UMGC-São Paulo, São Paulo, Brazil, C. D. C. AlbuquerqueNucleus of Reserche in Environmental Sciences (NPCIAMB), Catholic University of Pernambuco, 50.050-590 Recife-PE, Brazil, A. E. NascimentoNucleus of Reserche in Environmental Sciences (NPCIAMB), Catholic University of Pernambuco, 50.050-590 Recife-PE, Brazil, and G. M. Campos-TakakiNucleus of Reserche in Environmental Sciences (NPCIAMB), Catholic University of Pernambuco, 50.050-590 Recife-PE, Brazilhttps://doi.org/10.1142/9789812837554_0053Cited by:0 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail Abstract: The modification of polyethylene terephthalate (PET) fibres from used beverage bottles was investigated by treatment with UV (6 and 36h), temperature (35°C and 50°C), and without physic treatment on the production of extracellular enzymes, and biofilm formation by Bacillus subtilis under controlled conditions. The results showed partial degradation of the copolymer submitted to physic treatments and colonization by B. subtilis. The best results of degradation were associated with protease, amylase and esterase on surface of PET particles submitted to 50°C of temperature, during 60 days. However, the esterase activity simulating biodegradation of PET by B. subtilis, and suggest residual lost of weight, and the products showed low toxicity when compared with the PET particles without treatments. Keywords: polyethylene terephtalateezymesBacillus subtilis FiguresReferencesRelatedDetails Recommended Current Research Topics in Applied Microbiology and Microbial BiotechnologyMetrics History Keywordspolyethylene terephtalateezymesBacillus subtilisPDF download