Fate of p-hydroxycinnamates and structural characteristics of residual hemicelluloses and lignin during alkaline-sulfite chemithermomechanical pretreatment of sugarcane bagasse (2018)
- Authors:
- USP affiliated authors: MILAGRES, ADRIANE MARIA FERREIRA - EEL ; FERRAZ, ANDRÉ LUIS - EEL
- Unidade: EEL
- Sigla do Departamento: LOT
- DOI: 10.1186/s13068-018-1155-3
- Subjects: CANA-DE-AÇÚCAR; LIGNINA
- Keywords: Grasses; Recalcitrance; p-Hydroxycinnamates; Sugarcane; Lignin; Hemicelluloses; Pretreatment; Alkalinesulfte; Biorefnery
- Agências de fomento:
- Language: Inglês
- Abstract: Background: Preparing multiple products from lignocellulosic biomass feedstock enhances the proft and sustainability of future biorefneries. Grasses are suitable feedstocks for biorefneries as they permit a variety of possible by-products due to their particular chemical characteristics and morphology. Elucidating the fate of p-hydroxycinnamates (ferulates—FAs and p-coumarates—pCAs) and major structural components during bioprocessing helps to discriminate the sources of recalcitrance in grasses and paves the way for the recovery of p-hydroxycinnamates, which have multiple applications. To address these subjects, we assessed sugarcane bagasse biorefning under alkalinesulfte chemithermomechanical (AS-CTM) pretreatment and enzymatic saccharifcation. Results: The mass balances of the major bagasse components were combined with 2D-NMR structural evaluation of process solids to advance our understanding of sugarcane bagasse changes during biorefning. AS-CTM pretreatment provided a high yield and thoroughly digestible substrates. The pretreated material was depleted in acetyl groups, but retained 62 and 79% of the original lignin and xylan, respectively. Forty percent of the total FAs and pCAs were also retained in pretreated material. After pretreatment and enzymatic hydrolysis, the residual solids contained mostly lignin and ester-linked pCAs, with minor amounts of FAs and non-digested polysaccharides. Saponifcation of the residual solids, at a higher alkali load, cleaved all the ester linkages in the pCAs; nevertheless, a signifcant fraction of the pCAs remained attached to the saponifed solids, probably to lignin, through 4-O ether-linkages.Conclusion: AS-CTM pretreatment provided soundly digestible substrates, which retain substantial amounts of xylans and lignin. Acetyl groups were depleted, but 40% of the total FAs and pCAs remained in pretreated material. Ester-linked pCAs detected in pretreated material also resisted to the enzymatic hydrolysis step. Only a more severe saponifcation reaction cleaved ester linkages of pCAs from residual solids; nevertheless, pCAs remained attached to the core lignin through 4-O ether-linkages, suggesting the occurrence of an alkali-stable fraction of pCAs in sugarcane bagasse.
- Imprenta:
- Source:
- Título: Biotechnology for Biofuels
- ISSN: 1754-6834
- Volume/Número/Paginação/Ano: v., n. , p.153-, 2018
- Este periódico é de acesso aberto
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: gold
- Licença: cc-by
-
ABNT
REINOSO, Felipe Andres Montoya et al. Fate of p-hydroxycinnamates and structural characteristics of residual hemicelluloses and lignin during alkaline-sulfite chemithermomechanical pretreatment of sugarcane bagasse. Biotechnology for Biofuels, n. , p. 153-, 2018Tradução . . Disponível em: https://doi.org/10.1186/s13068-018-1155-3. Acesso em: 27 dez. 2025. -
APA
Reinoso, F. A. M., Rencoret, J., Gutiérrez, A., Milagres, A. M. F., del Río, J. C., & Ferraz, A. L. (2018). Fate of p-hydroxycinnamates and structural characteristics of residual hemicelluloses and lignin during alkaline-sulfite chemithermomechanical pretreatment of sugarcane bagasse. Biotechnology for Biofuels, ( ), 153-. doi:10.1186/s13068-018-1155-3 -
NLM
Reinoso FAM, Rencoret J, Gutiérrez A, Milagres AMF, del Río JC, Ferraz AL. Fate of p-hydroxycinnamates and structural characteristics of residual hemicelluloses and lignin during alkaline-sulfite chemithermomechanical pretreatment of sugarcane bagasse [Internet]. Biotechnology for Biofuels. 2018 ;( ): 153-.[citado 2025 dez. 27 ] Available from: https://doi.org/10.1186/s13068-018-1155-3 -
Vancouver
Reinoso FAM, Rencoret J, Gutiérrez A, Milagres AMF, del Río JC, Ferraz AL. Fate of p-hydroxycinnamates and structural characteristics of residual hemicelluloses and lignin during alkaline-sulfite chemithermomechanical pretreatment of sugarcane bagasse [Internet]. Biotechnology for Biofuels. 2018 ;( ): 153-.[citado 2025 dez. 27 ] Available from: https://doi.org/10.1186/s13068-018-1155-3 - Sugarcane hybrids with original low lignin contents and high field productivity are useful to reach high glucose yields from bagasse
- Topochemical characterization of sugar cane pretreated with alkaline sulfite
- Topochemical characterization of sugar cane pretreated with alkaline sulfite
- Anatomic and ultrastructural characteristics of different regions of sugar cane internodes which affect their response to alkaline-sulfite pretreatment and material recalcitrance
- In site produced and Commercially alkali-active xylanases compared for xylan exxtraction from sugarcane bagasse
- Comparative evaluation of acid and alkaline sulfite pretreatments for enzymatic saccharification of bagasses from three different sugarcane hybrids
- Limitation of cellulose accessibility and unproductive binding of cellulases by pretreated sugarcane bagasse lignin
- Techno-economic impacts of varied compositional profiles of sugarcane experimental hybrids on a biorefinery producing sugar, ethanol and electricity
- Processo de fracionamento do caule de gramíneas e uso das frações obtidas
- The secretome of two representative lignocellulose-decay basidiomycetes growing on sugarcane bagasse solid-state cultures
Informações sobre o DOI: 10.1186/s13068-018-1155-3 (Fonte: oaDOI API)
How to cite
A citação é gerada automaticamente e pode não estar totalmente de acordo com as normas
