Xylan extraction from pretreated sugarcane bagasse using alkaline and enzymatic approaches (2017)
- Authors:
- USP affiliated authors: FERRAZ, ANDRÉ LUIS - EEL ; MILAGRES, ADRIANE MARIA FERREIRA - EEL ; REINOSO, FELIPE ANDRES MONTOYA - EEL
- Unidade: EEL
- Sigla do Departamento: LOT
- DOI: 10.1186/s13068-017-0981-z
- Subjects: BIOTECNOLOGIA; CANA-DE-AÇÚCAR
- Keywords: Xylan; Sugarcane; Biorefinery; Cellulose hydrolysis; Alkaline-sulfite pretreatment
- Agências de fomento:
- Language: Inglês
- Abstract: Abstract Background: New biorefinery concepts are necessary to drive industrial use of lignocellulose biomass components. Xylan recovery before enzymatic hydrolysis of the glucan component is a way to add value to the hemicellulose fraction, which can be used in papermaking, pharmaceutical, and food industries. Hemicellulose removal can also facilitate subsequent cellulolytic glucan hydrolysis. Results: Sugarcane bagasse was pretreated with an alkaline-sulfite chemithermomechanical process to facilitate subsequent extraction of xylan by enzymatic or alkaline procedures. Alkaline extraction methods yielded 53% (w/w) xylan recovery. The enzymatic approach provided a limited yield of 22% (w/w) but produced the xylan with the lowest contamination with lignin and glucan components. All extracted xylans presented arabinosyl side groups and absence of acetylation. 2D-NMR data suggested the presence of O-methyl-glucuronic acid and p-coumarates only in enzymatically extracted xylan. Xylans isolated using the enzymatic approach resulted in products with molecular weights (Mw) lower than 6 kDa. Higher Mw values were detected in the alkali-isolated xylans. Alkaline extraction of xylan provided a glucan-enriched solid readily hydrolysable with low cellulase loads, generating hydrolysates with a high glucose/xylose ratio.Conclusions: Hemicellulose removal before enzymatic hydrolysis of the cellulosic fraction proved to be an efficient manner to add value to sugarcane bagasse biorefining. Xylans with varied yield, purity, and structure can be obtained according to the extraction method. Enzymatic extraction procedures produce high-purity xylans at low yield, whereas alkaline extraction methods provided higher xylan yields with more lignin and glucan contamination. When xylan extraction is performed with alkaline methods, the residual glucan-enriched solid seems suitable for glucose production employing low cellulase loadings.
- Imprenta:
- Publisher: Springer Nature
- Publisher place: Basel
- Date published: 2017
- Source:
- Título: Biotechnology for Biofuels
- ISSN: 1754-6834
- Volume/Número/Paginação/Ano: v.10, art. n. 296, p.1-11, 2017
- Este periódico é de acesso aberto
- Este artigo NÃO é de acesso aberto
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ABNT
SPORCK, Daniele et al. Xylan extraction from pretreated sugarcane bagasse using alkaline and enzymatic approaches. Biotechnology for Biofuels, v. 10, n. art. 296, p. 1-11, 2017Tradução . . Disponível em: https://doi.org/10.1186/s13068-017-0981-z. Acesso em: 22 fev. 2026. -
APA
Sporck, D., Reinoso, F. A. M., Rencoret, J., Gutiérrez, A., del Río, J. C., Ferraz, A. L., & Milagres, A. M. F. (2017). Xylan extraction from pretreated sugarcane bagasse using alkaline and enzymatic approaches. Biotechnology for Biofuels, 10( art. 296), 1-11. doi:10.1186/s13068-017-0981-z -
NLM
Sporck D, Reinoso FAM, Rencoret J, Gutiérrez A, del Río JC, Ferraz AL, Milagres AMF. Xylan extraction from pretreated sugarcane bagasse using alkaline and enzymatic approaches [Internet]. Biotechnology for Biofuels. 2017 ;10( art. 296): 1-11.[citado 2026 fev. 22 ] Available from: https://doi.org/10.1186/s13068-017-0981-z -
Vancouver
Sporck D, Reinoso FAM, Rencoret J, Gutiérrez A, del Río JC, Ferraz AL, Milagres AMF. Xylan extraction from pretreated sugarcane bagasse using alkaline and enzymatic approaches [Internet]. Biotechnology for Biofuels. 2017 ;10( art. 296): 1-11.[citado 2026 fev. 22 ] Available from: https://doi.org/10.1186/s13068-017-0981-z - On-site produced and commercially available alkali-active xylanases compared for xylan extraction from sugarcane bagasse
- Product diversification helps to add value in the chemithermomechanical processing of sugarcane bagasse
- 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
- Fate of p-hydroxycinnamates and structural characteristics of residual hemicelluloses and lignin during alkaline-sulfite chemithermomechanical pretreatment of sugarcane bagasse
- Topochemical characterization of sugar cane pretreated with alkaline sulfite
- Topochemical characterization of sugar cane pretreated with alkaline sulfite
- Sugarcane hybrids with original low lignin contents and high field productivity are useful to reach high glucose yields from bagasse
- Anatomic and ultrastructural characteristics of different regions of sugar cane internodes which affect their response to alkaline-sulfite pretreatment and material recalcitrance
- The secretome of two representative lignocellulose-decay basidiomycetes growing on sugarcane bagasse solid-state cultures
Informações sobre o DOI: 10.1186/s13068-017-0981-z (Fonte: oaDOI API)
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