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Título:
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Enzymatic generation of β-mannooligosaccharides from forest industry by-products
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Autores:
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FABIÁN MANCIONI FONT, Autor ;
YAMIRA QUINTERO, Autor ;
MATÍAS CAGNO, Autor ;
BONFIGLIO, FERNANDO, Autor ;
CECILIA PORCIÚNCULA GONZÁLEZ, Autor ;
PAULA LÓPEZ REVENGA, Autor ;
ANTONIA MONTILLA, Autor ;
CAROLINA FONTANA, Autor ;
CECILIA GIACOMINI, Autor
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Tipo de documento:
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documento electrónico
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Fecha de publicación:
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2026
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ISBN/ISSN/DL:
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69848
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Nota general:
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En: Environmental Sustainability.
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Langues:
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Inglés
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Clasificación:
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BIOMASA
COMBUSTIBLES
ETANOL
EUCALYPTUS
PUBLICACIONES TÉCNICOS LATITUD
RESIDUOS DE MADERA
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Resumen:
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Prebiotic manooligosaccharides (MOS) enhance the immune system by selectively fermenting gut microbiota. While generally produced through enzymatic hydrolysis of natural mannans and agro-industrial residues, forest waste remains an untapped source. We report the extraction of mannan from Pinus taeda residues using steam explosion and its subsequent enzymatic conversion into β-MOS. Monosaccharide analysis confirmed the presence of galactoglucomannan, a characteristic hemicellulose of conifer wood. A β-MOS yield of 11.5mg per gram of clarified lignocellulosic hydrolysate was achieved, consisting of oligosaccharides with a low degree of polymerization (DP) <5. Within this fraction, DP2 species were the most abundant, reaching a concentration of 8.4mg/g in the LMW-MOS-CH fraction as quantified by gas chromatography (GC). The major disaccharides identified were β-d-Manp-(1→4)-d-Manp (~50%) and β-d-Glcp-(1→4)-d-Manp (~50%). Besides, nuclear magnetic resonance (NMR) spectroscopy of two purified fractions revealed β-MOS with an average DP of 5 or 6, composed of glucose and mannose in a molar ratio of 1:4 or 1:5, respectively. These findings, coupled with the feasibility of converting cellulose-rich solid residue from steam explosion into second-generation bioethanol, and the antioxidant potential of the phenol-rich fraction recovered during the lignocellulosic hydrolysate clarification, underscore an integrated valorization of forest by-products.
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dc.description.sponsorship :
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Agencia Nacional de Investigación e Innovación
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dc.identifier.anii :
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FSE_1_2017_1_144465
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dc.identifier.doi :
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https://doi.org/10.1007/s42398-026-00437-4
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Creative Commons :
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CC BY
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En línea:
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https://rdcu.be/femem
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