Structural features and properties of soluble products derived from Eucalyptus globulus hemicelluloses

Gullón, Patricia; González‐Muñoz, María Jesús; Gool, Martine P. van; Schols, Henk A.; Hirsch, Ján; Ebringerová, Anna; Parajó, Juan Carlos

doi:10.1016/j.foodchem.2011.02.066

Cited by 60 publications

(28 citation statements)

References 48 publications

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“…Fig. 23 The wavenumbers between 800 and 1200 cm −1 represent the finger print region for carbohydrates. The large peak at around 3423 cm −1 is assigned to the stretching vibrations of the hydroxyl group.…”

Section: Preparation and Structural Characterization Of Nvpsmentioning

confidence: 99%

Isolation and antitumor efficacy evaluation of a polysaccharide from Nostoc commune Vauch.

et al. 2015

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Nostoc commune Vauch. has been traditionally used as a healthy food and medicine for centuries especially in China. It has been demonstrated that the polysaccharides isolated from Nostoc commune Vauch. exhibit strong antimicrobial and antioxidant activities. However, little is known about their anticancer activities and the underlying mechanisms of action. Herein, we report the isolation of a polysaccharide from Nostoc commune Vauch. (NVPS), and its physicochemical properties were analyzed. In an attempt to demonstrate the potential application of NVPS in tumor chemotherapy, the in vitro antitumor activity was determined. NVPS significantly suppressed the growth and proliferation of MCF-7 and DLD1 cells. The molecular mechanism underlying this in vitro antitumor efficacy was elucidated, and the results indicated that NVPS simultaneously triggered intrinsic, extrinsic and endoplasmic reticulum stress (ERS)-mediated apoptotic signaling pathways. Collectively, these findings demonstrate that NVPS could be used as a novel promising source of natural antitumor agents.

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Section: Preparation and Structural Characterization Of Nvpsmentioning

confidence: 99%

Isolation and antitumor efficacy evaluation of a polysaccharide from Nostoc commune Vauch.

et al. 2015

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“…The "Agenda 2020 Technology Alliance" advocates the selective extraction of hemicelluloses prior to pulping of wood in modern biorefineries. This goal can be achieved by a hot water extraction (also called autohydrolysis, hydrothermal treatment, or water prehydrolysis) (Yáñez et al 2009;Helmerius et al 2010;Gullón et al 2011;Vila et al 2012), which is considered to be an environmentally friendly technology and enables a selective separation of soluble hemicellulose-derived saccharides, while the solid phase residue is enriched in cellulose and lignin. The latter can be further fractionated via autohydrolysis, for example, to produce pulp (Helmerius et al 2010), dissolve pulp (Borrega et al 2013;Testova et al 2014), microcrystalline cellulose (Vila et al 2014), or sugar solutions suitable as fermentation media for the biotechnological manufacture of chemicals or fuels (Garrote et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Furfural production from birch hemicelluloses by two-step processing: a potential technology for biorefineries

et al. 2016

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Birch samples were subjected to non-isothermal autohydrolysis to obtain a solution of hemicellulosic saccharides and a solid phase mainly made up of cellulose and lignin. Based on kinetic modeling, operational conditions were identified which give rise to soluble saccharides and furfural derived from xylan in a yield of 80.5%. The soluble mixture was supplemented with 1% sulfuric acid and heated (directly or in the presence of methyl isobutyl ketone, MIBK) for furfural production. MIBK is used as an extraction agent to limit furfural consumption by side reactions. Operating in single phase at 170°C, up to 44.8% of the potential substrates were converted into furfural. In experiments performed in biphasic media, the effects of MIBK were assessed by empirical modeling and about 75% of the potential substrates were converted under selected conditions.

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“…Operating at 7.5 bar with a 5 kDa membrane up to a volume concentration ratio of 5.5 led to an increase of XOSs and substituents (acetyl and uronic groups) by a factor of 3.8%, decreasing the mass fraction of monosaccharides by 55%. The structure and properties of XOSs from E. globulus were studied by Gullo´n, Gonza´lez-Mun˜oz, Van Gool, et al (2011). These studies confirmed the potential of the refined XOSs for prebiotic applications.…”

Section: Relevant Studiesmentioning

confidence: 55%

Biorefinery processes for the integral valorization of agroindustrial and forestal wastes Procesos de biorrefinería para la valorización integral de residuos agroindustriales y forestales

Alonso¹,

Domı́nguez²,

Garrote³

et al. 2011

CyTA - Journal of Food

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Teniendo en cuenta el concepto de biorrefinerı´a, los autores de esta revisio´n, que pertenecen al Departamento de Ingenierı´a Quı´mica de la Universidad de Vigo, en la Facultad de Ciencias, han desarrollado sus investigaciones en este campo. Esta revisio´n muestra el trabajo del grupo en las dos u´ltimas de´cadas, basado en el fraccionamiento de materiales lignocelulo´sicos (residuos forestales, industriales y agrı´colas) para obtener diferentes productos, tales como compuestos feno´licos con efectos antioxidantes, oligosaca´ridos con propiedades prebio´ticas, a´cido la´ctico, bioetanol, materiales compuestos, etc.

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Structural features and properties of soluble products derived from Eucalyptus globulus hemicelluloses

Cited by 60 publications

References 48 publications

Isolation and antitumor efficacy evaluation of a polysaccharide from Nostoc commune Vauch.

Isolation and antitumor efficacy evaluation of a polysaccharide from Nostoc commune Vauch.

Furfural production from birch hemicelluloses by two-step processing: a potential technology for biorefineries

Biorefinery processes for the integral valorization of agroindustrial and forestal wastes Procesos de biorrefinería para la valorización integral de residuos agroindustriales y forestales

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