Análise da degradação de diferentes corantes azoicos a partir do crescimento do fungo Pleurotus ostreatus florida

• Autor(a) principal: Assem, Ágata Abrão Mustafá [UNESP]
• Data de Publicação: 2017
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/202968; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2019-04-29/000908601.pdf
• topic: Engenharia ambiental; Corantes; Biodegradação; Pleurotus ostreatus; Environmental engineering

The Azo Dyes represent the majority of synthetic dyes, being used in a variety of industries, mainly in the textile. In spite of their great use, they are usually toxic to animals and humans, being necessary some special treatment of the liquid effluents with its presence. Thus, the present study had as goal the development of fungi Pleurotus ostreatus florida in solid and liquid medium in the presence of azo dye Methyl Orange, Methyl Red and Fast Blue RR, aspiring to degradation of these compounds by the microorganism for possible application in environmental recovery processes. For the solid culture, four culture media (M1, M2, M3 and M4) were prepared, varying their nutritional source and the concentration of the dye (0.001%, 0.01%, 0.1% and 1%, m/v). The experiments were carried out in triplicate for each dye and kept at 28°C ± 2°C in a bacteriological oven and evaluated in relation to growth over 15 days. For liquid cultures the M4 medium, without agar, was used with 0.001% (m/v) of each dye. Triplicates of media were prepared in 250 mL Erlenmeyer flasks, containing 50 mL of culture medium and being subjected to agitation (180 rpm) at 28ºC ± 2°C for 15 days. After this period the cultures were interrupted, filtered and the supernatants collected for spectroscopy scanning analyzes by the UV-VIS method in order to determine the degradation of the culture medium...