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Dr. Izaskun Dávila
Chemical and Environmental Engineering Department, University of the Basque Country UPV/EHU, Plaza Europa 1, 20018 Donostia-San Sebastián, Spain

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0 Biomass Conversion
0 Biotechnology
0 Green Technology
0 lignin
0 Lignocellulosic Conversion

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Review article
Published: 28 December 2020 in Current Opinion in Green and Sustainable Chemistry
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In the last decades, integrated biorefineries are acquiring importance since they allow the integral valorisation of lignocellulosic biomass by the obtaining of multiple products. However, the high number of steps of these biorefineries could reduce their economic sustainability and also could worse their environmental profile. In this sense, biphasic reaction systems could be a solution since it permits the production and isolation of added-value compounds in a single step. Furthermore, carrying reactions in biphasic systems also presents some advantages compared with performing them in monophasic systems, as they can be thermodynamically controlled and side reactions are avoided. Thus, this short review briefly presents the different biphasic reaction systems proposed in the last two years for the valorisation of lignocellulosic biomass.

ACS Style

Izaskun Dávila; Jalel Labidi. Biphasic reaction systems for lignocellulosic biomass revalorisation. Current Opinion in Green and Sustainable Chemistry 2020, 28, 100435 .

AMA Style

Izaskun Dávila, Jalel Labidi. Biphasic reaction systems for lignocellulosic biomass revalorisation. Current Opinion in Green and Sustainable Chemistry. 2020; 28 ():100435.

Chicago/Turabian Style

Izaskun Dávila; Jalel Labidi. 2020. "Biphasic reaction systems for lignocellulosic biomass revalorisation." Current Opinion in Green and Sustainable Chemistry 28, no. : 100435.

Journal article
Published: 18 August 2018 in Industrial Crops and Products
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Among lignocellulosic materials, chestnut shells (CNS) are a rejected feedstock from agro-food industry with promising possibilities as a suitable raw material to be used in a biorefinery scheme. The aim of this work was to optimize the alkaline delignification of CNS for the co-production of lignin and bio-ethanol. Under the optimal conditions (7.2% NaOH, 80 °C and 30 min), 92.6% of delignification was achieved, and 60.5% of glucan was recovered. This delignified solid was subjected to a simultaneous saccharification and fermentation using Saccharomyces cerevisiae, reaching an ethanol production of 14.6 g/L (ethanol conversion of 97%). Furthermore, the lignin extracted from CNS was characterized for the first time in terms of the chemical composition (pyrolysis-GC/MS), molecular weight distribution (HPSEC), thermal stability (TGA), structural properties and functional groups (FTIR and NMR) and total phenolic content (Folin-Ciocalteu). A preliminary economic analysis demonstrated that the co-production of lignin is the key factor in the profitability of the CNS biorefinery, and that alkaline delignification could be a suitable revalorization strategy of this unexploited residue.

ACS Style

Amaia Morales; Beatriz Gullón; Izaskun Dávila; Gemma Eibes; Jalel Labidi; Patricia Gullón. Optimization of alkaline pretreatment for the co-production of biopolymer lignin and bioethanol from chestnut shells following a biorefinery approach. Industrial Crops and Products 2018, 124, 582 -592.

AMA Style

Amaia Morales, Beatriz Gullón, Izaskun Dávila, Gemma Eibes, Jalel Labidi, Patricia Gullón. Optimization of alkaline pretreatment for the co-production of biopolymer lignin and bioethanol from chestnut shells following a biorefinery approach. Industrial Crops and Products. 2018; 124 ():582-592.

Chicago/Turabian Style

Amaia Morales; Beatriz Gullón; Izaskun Dávila; Gemma Eibes; Jalel Labidi; Patricia Gullón. 2018. "Optimization of alkaline pretreatment for the co-production of biopolymer lignin and bioethanol from chestnut shells following a biorefinery approach." Industrial Crops and Products 124, no. : 582-592.

Journal article
Published: 01 May 2018 in Science of The Total Environment
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The use of vine shoots as feedstock in biorefining activities to obtain bioproducts under efficient and optimized conditions could be crucial to make future high added value compounds and processes more sustainable. In this study, five different potential valorization scenarios from vine shoots differing on diverse extraction and delignification steps were assessed from an environmental perspective using the Life Cycle Assessment methodology to identify the most sustainable biorefining route. The main findings from this study reported that an increment on the number of valorization steps involved higher energy and chemical requirements deriving on worse environmental profiles. Scenarios incorporating fermentation of the glucose liquors or organosolv delignification performed the worst profiles. Autohydrolysis, concentration and freeze drying and enzymatic hydrolysis were the main responsible stages of the environmental burdens. Further research should be focused on optimizing chemicals and electricity requirements to develop greener systems.

ACS Style

Patricia Gullón; Beatriz Gullón; Izaskun Dávila; Jalel Labidi; Sara Gonzalez-Garcia. Comparative environmental Life Cycle Assessment of integral revalorization of vine shoots from a biorefinery perspective. Science of The Total Environment 2018, 624, 225 -240.

AMA Style

Patricia Gullón, Beatriz Gullón, Izaskun Dávila, Jalel Labidi, Sara Gonzalez-Garcia. Comparative environmental Life Cycle Assessment of integral revalorization of vine shoots from a biorefinery perspective. Science of The Total Environment. 2018; 624 ():225-240.

Chicago/Turabian Style

Patricia Gullón; Beatriz Gullón; Izaskun Dávila; Jalel Labidi; Sara Gonzalez-Garcia. 2018. "Comparative environmental Life Cycle Assessment of integral revalorization of vine shoots from a biorefinery perspective." Science of The Total Environment 624, no. : 225-240.

Chapter
Published: 23 May 2017 in Hydrothermal Processing in Biorefineries
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Hemicelluloses are the second most abundant heterogeneous polysaccharides in nature. Among the several treatments that can be used for the solubilization of hemicelluloses to produce oligosaccharides from lignocellulosic biomass, the autohydrolysis reaction is the most widely used. Under suitable conditions, autohydrolysis enables high ligosaccharides yields, however this reaction is not selective and undesired compounds are also present in the reaction media. Because of this, the autohydrolysis media has to be subjected to further processing to improve the purity of oligosaccharide hydrolysate. The chemical and structural characterization of the solubilized products from hemicelluloses is an important aspect as it allows to know the application for which they are more suitable. Oligosaccharides from hemicelluloses can find applications in several fields such as biomedical, food, and biomaterials.

ACS Style

Beatriz Gullón; Izaskun Dávila; María García-Torreiro; Remedios Yáñez; Jalel Labidi; Patricia Gullón. Production and Emerging Applications of Bioactive Oligosaccharides from Biomass Hemicelluloses by Hydrothermal Processing. Hydrothermal Processing in Biorefineries 2017, 253 -283.

AMA Style

Beatriz Gullón, Izaskun Dávila, María García-Torreiro, Remedios Yáñez, Jalel Labidi, Patricia Gullón. Production and Emerging Applications of Bioactive Oligosaccharides from Biomass Hemicelluloses by Hydrothermal Processing. Hydrothermal Processing in Biorefineries. 2017; ():253-283.

Chicago/Turabian Style

Beatriz Gullón; Izaskun Dávila; María García-Torreiro; Remedios Yáñez; Jalel Labidi; Patricia Gullón. 2017. "Production and Emerging Applications of Bioactive Oligosaccharides from Biomass Hemicelluloses by Hydrothermal Processing." Hydrothermal Processing in Biorefineries , no. : 253-283.

Book chapter
Published: 01 January 2017 in Handbook of Grape Processing By-Products
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ACS Style

Gonzalo L. Alonso; Jasna Cˇanadanović-Brunet; Gordana C´etković; Izaskun Dávila; Sonja Djilas; Jorge Domínguez; Itziar Egüés; Charis M. Galanakis; Javier García-Lomillo; Guillermo D. Garrido; Maria Luisa González-Sanjosé; Patricia Gullón; Jelena Cvejic Hogervorst; William L. Kerr; Jalel Labidi; Vera Lavelli; Marta Lores; Nicolas Louka; Laura Marinoni; Richard G. Maroun; Uroš Miljić; Maria Antónia Nunes; Maria Beatriz P.P. Oliveira; Miguel A. Pedroza; Vladimir Puškaš; Hiba N. Rajha; Eduardo Robles; Francisca Rodrigues; Mª Rosario Salinas; Rosario Sánchez-Gómez; Juan C. Sanchez-Hernandez; Giorgia Spigno; Slađana Stajčić; Vesna Tumbas Šaponjac; Eugene Vorobiev; Jelena Vulić; Amaya Zalacain. List of Contributors. Handbook of Grape Processing By-Products 2017, 1 .

AMA Style

Gonzalo L. Alonso, Jasna Cˇanadanović-Brunet, Gordana C´etković, Izaskun Dávila, Sonja Djilas, Jorge Domínguez, Itziar Egüés, Charis M. Galanakis, Javier García-Lomillo, Guillermo D. Garrido, Maria Luisa González-Sanjosé, Patricia Gullón, Jelena Cvejic Hogervorst, William L. Kerr, Jalel Labidi, Vera Lavelli, Marta Lores, Nicolas Louka, Laura Marinoni, Richard G. Maroun, Uroš Miljić, Maria Antónia Nunes, Maria Beatriz P.P. Oliveira, Miguel A. Pedroza, Vladimir Puškaš, Hiba N. Rajha, Eduardo Robles, Francisca Rodrigues, Mª Rosario Salinas, Rosario Sánchez-Gómez, Juan C. Sanchez-Hernandez, Giorgia Spigno, Slađana Stajčić, Vesna Tumbas Šaponjac, Eugene Vorobiev, Jelena Vulić, Amaya Zalacain. List of Contributors. Handbook of Grape Processing By-Products. 2017; ():1.

Chicago/Turabian Style

Gonzalo L. Alonso; Jasna Cˇanadanović-Brunet; Gordana C´etković; Izaskun Dávila; Sonja Djilas; Jorge Domínguez; Itziar Egüés; Charis M. Galanakis; Javier García-Lomillo; Guillermo D. Garrido; Maria Luisa González-Sanjosé; Patricia Gullón; Jelena Cvejic Hogervorst; William L. Kerr; Jalel Labidi; Vera Lavelli; Marta Lores; Nicolas Louka; Laura Marinoni; Richard G. Maroun; Uroš Miljić; Maria Antónia Nunes; Maria Beatriz P.P. Oliveira; Miguel A. Pedroza; Vladimir Puškaš; Hiba N. Rajha; Eduardo Robles; Francisca Rodrigues; Mª Rosario Salinas; Rosario Sánchez-Gómez; Juan C. Sanchez-Hernandez; Giorgia Spigno; Slađana Stajčić; Vesna Tumbas Šaponjac; Eugene Vorobiev; Jelena Vulić; Amaya Zalacain. 2017. "List of Contributors." Handbook of Grape Processing By-Products , no. : 1.

Book chapter
Published: 01 January 2017 in Handbook of Grape Processing By-Products
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ACS Style

Izaskun Dávila; Eduardo Robles; Itziar Egüés; Jalel Labidi; Patricia Gullón. The Biorefinery Concept for the Industrial Valorization of Grape Processing By-Products. Handbook of Grape Processing By-Products 2017, 29 -53.

AMA Style

Izaskun Dávila, Eduardo Robles, Itziar Egüés, Jalel Labidi, Patricia Gullón. The Biorefinery Concept for the Industrial Valorization of Grape Processing By-Products. Handbook of Grape Processing By-Products. 2017; ():29-53.

Chicago/Turabian Style

Izaskun Dávila; Eduardo Robles; Itziar Egüés; Jalel Labidi; Patricia Gullón. 2017. "The Biorefinery Concept for the Industrial Valorization of Grape Processing By-Products." Handbook of Grape Processing By-Products , no. : 29-53.