Título:	Biodegradation of a textile dye by Ganoderma lucidum: scale-up into packed-bed bioreactors.
Autoria:	CHICATTO, J. A. GONÇALVES, M. J. TIMM, T. G. HELM, C. V. ALTMAJER-VAZ, D. TAVARES, L. B. B.
Afiliação:	JULIANE ANDRESSA CHICATTO, UNIVERSIDADE REGIONAL DE BLUMENAU; MARCEL JEFFERSON GONÇALVES, UNIVERSIDADE REGIONAL DE BLUMENAU; THAYNÃ GONÇALVES TIMM, UNIVERSIDADE REGIONAL DE BLUMENAU; CRISTIANE VIEIRA HELM, CNPF; DEISI ALTMAJER-VAZ, UNIVERSITY OF GRANADA; LORENA BENATHAR BALLOD TAVARES, UNIVERSIDADE REGIONAL DE BLUMENAU.
Ano de publicação:	2026
Referência:	Acta Scientiarum. Technology, v. 48, e74839, 2026.
Conteúdo:	This study presents the scale-up of the discoloration process of the dye Remazol Brilliant Blue R (RBBR) by the white-rot fungus Ganoderma lucidum. Experiments were initially conducted in a 2-L lab-scale bioreactor and subsequently scaled up to a 45-L packed-bed bioreactor operated in batch mode under nonsterile conditions. The dye solution (150 mg L-1) was recirculated through the packed bed, which supported the growth of G. lucidum on an inert and biodegradable carrier — peach palm waste. Discoloration, enzyme activity, pH, and microbial community composition were analyzed. In the lab-scale system, discoloration reached 80%, with laccase activity measured at 847.2 IU mL-1. Upon scale-up, discoloration reached 91%, with laccase identified as the main factor contributing to biodecoloration. The bacterial community was initially dominated by the phylum Proteobacteria (93.4%), followed by an increase in Acidobacteria, Actinobacteria, and Bacteroidetes. Among eukaryotes, Opisthokonta represented over 96% of the community. These results suggest that G. lucidum is a promising agent for the industrial-scale biodegradation of RBBR dye.
Thesagro:	Bactris Gasipaes Descoloração Enzima Resíduo Orgânico Pupunha Fermentação
NAL Thesaurus:	Ganoderma lucidum Organic wastes
Palavras-chave:	Discolorization Ligninolytic enzymes Solid-state fermentation
Digital Object Identifier:	https://doi.org/10.4025/actascitechnol.v48i1.74839
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPF)