Morphological observation and microbial population dynamics in anaerobic polyurethane foam biofilm degrading gelatin



Document title: Morphological observation and microbial population dynamics in anaerobic polyurethane foam biofilm degrading gelatin
Journal: Brazilian journal of chemical engineering
Database: PERIÓDICA
System number: 000308821
ISSN: 0104-6632
Authors: 1



Institutions: 1Universidade de Sao Paulo, Escola de Engenharia de Sao Carlos, Sao Carlos, Sao Paulo. Brasil
Year:
Season: Jul
Volumen: 19
Number: 3
Pages: 287-292
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract This work reports on a preliminary study of anaerobic degradation of gelatin with emphasis on the development of the proteolytic biofilm in polyurethane foam matrices in differential reactors. The evolution of the biofilm was observed during 22 days by optical and scanning electron microscopy (SEM) analyses. Three distinct immobilization patterns could be observed in the polyurethane foam: cell aggregates entrapped in matrix pores, thin biofilms attached to inner polyurethane foam surfaces and individual cells that have adhered to the support. Rods, cocci and vibrios were observed as the predominant morphologies of bacterial cells. Methane was produced mainly by hydrogenothrophic reactions during the operation of the reactors
Disciplines: Química,
Biología
Keyword: Biotecnología,
Microbiología,
Ingeniería química,
Degradación anaeróbica,
Gelatina,
Biopelículas,
Proteínas,
Biomasa microbiana
Keyword: Chemistry,
Biology,
Biotechnology,
Microbiology,
Chemical engineering,
Anaerobic degradation,
Gelatin,
Biofilms,
Proteins,
Microbial biomass
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