Biodegradation of PET (polyethylene terephthalate) by ligninolytic fungi

• Autor(a) principal: Koschevic, Marivane Turim
• Data de Publicação: 2015
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: eng
• Título da fonte: Repositório Institucional da UTFPR (da Universidade Tecnológica Federal do Paraná (RIUT))
• Texto Completo: http://repositorio.utfpr.edu.br/jspui/handle/1/22625
• topic: CNPQ::ENGENHARIAS::ENGENHARIA SANITARIA; Plásticos; Lixo – Eliminação; Poluição; Plastics; Refuse and refuse disposal; Pollution

This article shows results of study on the biodegradation of PET used as substrate for the growth of ligninolytic fungi. The samples had dimensions of 4 cm², cut from bottles of carbonated soft drink virgin (before use in industry), were subjected to disinfection according to standard ASTM G22-76 (1990), subsequently inoculated into petri dishes with microorganisms fungi: Pleurotus florida, Lentinula edodes (Beck. Pegler) and Ganoderma lucidum. The determination of mass loss PET was based on method ASTM D5247-92 (1992), where the samples were weighed prior and subsequent of period of incubation, which was conducted in an incubator at 20°C for 120 days. Been realized still the analyzes of Differential Scanning Calorimetry (DSC) of samples of PET before and after the fungal degradation. According to the data obtained it was found that the fungi studied have potential for degradation of PET, because the masses of the samples were reduced.