RT Journal Article
T1 Hydrothermal treatment of chestnut shells (Castanea sativa) to produce oligosaccharides and antioxidant compounds
A1 Gullón Estévez, Beatriz
A1 Eibes González, Gemma María
A1 Dávila, Izaskun
A1 Moreira Vilar, María Teresa
A1 Labidi, Jalel
A1 Gullón, Patricia
AB Hydrothermal treatment is an environmentally friendly technology that allows the solubilisation of hemicellulosic oligosaccharides with potential for their use as prebiotics. The purpose of this study was to solubilize oligosaccharides and antioxidant compounds from chestnut shells by a hydrothermal processing. The highest content of oligosaccharides (18.3 g/L), with a relatively low level of monosaccharides (2.4 g/L) and degradation products (0.5 g/L) was obtained at 180 °C (severity of 3.08). In addition, the liquors presented a high content of phenolic and flavonoid compounds with good antioxidant properties. The GC–MS revealed that the most abundant phenolic compound was pyrogallol (13.2%). The molecular weight distribution of the solubilization products showed that a 26.5% presented an apparent Mw of 6077 g/mol and a 73.5% presented an apparent Mw of 586 g/mol with a high polydispersity index. MALDI-TOF, FTIR, and TGA analyses revealed structural information of these compounds and their thermal stability.
PB Elsevier
YR 2018
FD 2018-07-15
LK https://hdl.handle.net/10347/39253
UL https://hdl.handle.net/10347/39253
LA eng
NO Beatriz Gullón, Gemma Eibes, Izaskun Dávila, María Teresa Moreira, Jalel Labidi, Patricia Gullón, Hydrothermal treatment of chestnut shells (Castanea sativa) to produce oligosaccharides and antioxidant compounds, Carbohydrate Polymers, Volume 192, 2018, Pages 75-83, ISSN 0144-8617, https://doi.org/10.1016/j.carbpol.2018.03.051.
NO This work was funded by the Spanish Ministry of Economy and Competitiveness (MINECO, CTQ2014-58879-JIN and CTQ2016-78689-R) and by the “Xunta de Galicia” (project ref. ED431F 2016/001). The authors B. Gullón, G. Eibes and M.T. Moreira belong to the Galician Competitive Research Group GRC 2013–032 and to the CRETUS Strategic Partnership (AGRUP2015/02). All these programmes are co-funded by FEDER (EU). The authors I. Davila, J. Labidi and P. Gullón belong to the Basque Competitive Research Group IT1008-16 funded by the Department of Education of the Basque Government. B. Gullón and P. Gullón would like to express her gratitude to MINECO for financial support (Grant references IJCI-2015-25305 and IJCI-2015-25304, respectively). I. Dávila would like to thank the Agriculture, Fishing and Food Department of the Basque Government (scholarship of young researchers training).
DS Minerva
RD 28 abr 2026