Data/hora: 12/06/2024 03:42:25

Biblioteca(s): 	Embrapa Florestas.	
Data corrente: 	05/12/2023	
Data da última atualização: 	05/12/2023	
Autoria: 	SPACKI, K. de C.; NOVI, D. M. P.; DURIGON, D. C.; FRAGA, F. C.; SANTOS, L. F. O.; HELM, C. V.; LIMA, E. A. de; PERALTA, R. A.; MOREIRA, R. de F. P. M.; CORRÊA, R. C. G.; BRACHT, A.; PERALTA, R. M.	
Afiliação: 	KAMILA DE CASSIA SPACKI, UNIVERSIDADE ESTADUAL DE MARINGÁ; DANIELLY MARIA PAIXÃO NOVI, UNIVERSIDADE ESTADUAL DE MARINGÁ; DANIELE COCCO DURIGON, UNIVERSIDADE FEDERAL DE SANTA CATARINA; FERNANDA CRISTINA FRAGA, UNIVERSIDADE FEDERAL DE SANTA CATARINA; LUIS FELIPE OLIVA SANTOS, UNIVERSIDADE ESTADUAL DE MARINGÁ; CRISTIANE VIEIRA HELM, CNPF; EDSON ALVES DE LIMA, CNPF; ROSELY APARECIDA PERALTA, UNIVERSIDADE FEDERAL DE SANTA CATARINA; REGINA DE FATIMA PERALTA MUNIZ MOREIRA, UNIVERSIDADE FEDERAL DE SANTA CATARINA; RUBIA CARVALHO GOMES CORRÊA, CENTRO UNIVERSITÁRIO DE MARINGÁ; ADELAR BRACHT, UNIVERSIDADE ESTADUAL DE MARINGÁ; ROSANE MARINA PERALTA, UNIVERSIDADE ESTADUAL DE MARINGÁ.	
Título: 	Improving enzymatic saccharification of peach palm (Bactris gasipaes) waste by biological pretreatment with Pleurotus ostreatus.	
Ano de publicação: 	2023	
Fonte/Imprenta: 	In: SIMPÓSIO LATINO AMERICANO DE CIÊNCIA DE ALIMENTOS E NUTRIÇÃO, 15., 2023, Campinas. Caderno de resumos [...]. Campinas: Galoá Science, 2023.	
Páginas: 	p. 109-110.	
ISBN: 	978-65-89463-70-2	
Idioma: 	Português	
Notas: 	SLACAN 2023.	
Conteúdo: 	Popularly known as pupunha, Bactris gasipaes Kunth is a palm tree native to the Amazon region whose planting has extended to the Southern and Southeastern states of Brazil. The production and consumption of peach palm generate a huge volume of by-products. It is estimated that approximately 84% of the total weight of the palm are lignocellulosic wastes. The white-rot fungus Pleurotus ostreatus was used for biological pretreatment of peach palm lignocellulosic wastes (inner sheath and peel) for improving the enzymatic saccharification and production of glucose. Non-treated and pre-treated B. gasipaes inner sheath and peel were submitted to hydrolysis by a commercial cellulase preparation from T. reesei. The amounts of total reducing sugars and glucose obtained from the 30d-pretreated inner sheath were seven and five times superior, respectively, when compared to those obtained with the non-pretreated inner sheath. However, the pre-treatment did not cause any improvement in the saccharification of the B. gasipaes peel. Scanning electronic microscopy of lignocellulosic fibers was done to verify the structural changes caused by the biological pretreatments. Upon the biological pretreatment the lignocellulosic structures of the inner sheath were substantially modified to less ordered ones. The main features of the modifications were detachment of the fibers, cell wall collapse and, in several cases, formation of pores in the cell wall surfaces. The peel lignocellulosic fibers showed more ordered fibrils and no modification was observed after pre-treatment. In conclusion, P. ostreatus pretreatment considerably improved saccharification of the B. gasipaes inner sheath (7-fold), but ´pretreatment of the peel was largely ineffective.	
Palavras-Chave: 	Bioeconomia circular; Circular bioeconomy; Enzimatic saccharification; Resíduos; Scarificação enzimática.	
Thesagro: 	Bactris Gasipaes; Subproduto.	
Thesaurus Nal: 	Pleurotus ostreatus.	
Categoria do assunto: 	K Ciência Florestal e Produtos de Origem Vegetal	
Registro original: 	Embrapa Florestas (CNPF)	
Exemplares: 	CNPF - (58745-1) - UPC - RA - DD -  -  -  - DIS