Banca de DEFESA: CLARA RESENDE DE SOUZA CASTRO

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE: CLARA RESENDE DE SOUZA CASTRO
DATA: 30/05/2025
HORA: 09:00
LOCAL: Hibrido
TÍTULO:
PALAVRAS-CHAVES:

Biorremediationo; Antibiotic; Microorganisms; Agricultural defensive; sub-product

PÁGINAS: 50
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
SUBÁREA: Fitossanidade
ESPECIALIDADE: Microbiologia Agrícola
RESUMO:

Penicillium brevicompactum is a versatile fungal strain known for its ability to produce a variety of metabolites, particularly enzymes. However, there is limited research on the specific enzymes it produces. Fungal strains are valuable in solid-state fermentation, especially for transforming agricultural waste into valuable byproducts. In this study, we explored the potential applications of a crude fermented extract from P. brevicompactum, which was obtained through solid-state fermentation using sugarcane bagasse (SCB). We observed both structural and chemical modifications in SCB during the fermentation process. By employing response surface methodology, we optimized the production of cell-wall degrading enzymes. After seven days of fermentation at 65% moisture, P. brevicompactum produced avicelase, β-glucosidase, xylanase, carboxymethylcellulase, laccase, manganese peroxidase, and lignin peroxidase.
These enzymes have demonstrated the ability to degrade organic micropollutants and inhibit the growth of fungi and nematodes. Therefore, we conclude that the crude fermented extract can be effectively used for various purposes, including biological control and bioremediation, which support a circular economy and align with the biorefinery concept.

MEMBROS DA BANCA:
Externo à Instituição - MÁRIO SÉRGIO LORENÇO - UFLA (Membro)
Externo à Instituição - LUCIANA SILVA RIBEIRO - UFRA (Suplente)
Externo à Instituição - KELLY CRISTINA DA SILVA BRABES - UFGD (Membro)
Externo ao Programa - FILIPPE ELIAS DE FREITAS SOARES - DQI/ICN (Membro)
Interno - EUSTAQUIO SOUZA DIAS (Membro)
Presidente - CRISTINA FERREIRA SILVA (Membro)
Externo ao Programa - ANGELA DAYANA BARRERA DE BRITO - DFI/ICN (Suplente)