The Experts below are selected from a list of 45252 Experts worldwide ranked by ideXlab platform
Helene Fulcrand - One of the best experts on this subject based on the ideXlab platform.
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Furylated flavonoids: fully biobased building blocks produced by condensed tannins depolymerization
ACS Sustainable Chemistry & Engineering, 2018Co-Authors: Laurent Roumeas, Chahinez Aouf, Eric Dubreucq, Guillaume Billerach, Helene FulcrandAbstract:An original method has been set up to produce fully biobased phenolic building blocks from condensed tannins, largely available from agroindustrial residues or Wood Industry coproducts. The acid-catalyzed depolymerization of condensed tannins in the presence of furan or sylvan in mild conditions (30-40 degrees C, 0.1 M HCl) gives the corresponding furylated flavonoids with high yields. The reaction was more efficient with sylvan than with the less nucleophilic furan. A key feature of the products is the high stability of the flavanyl to furyl C-C linkage compared to the thioether bond obtained by the classical thiolysis, which makes them promising platform molecules for further functionalization, including in alkaline conditions. The simplicity of the process makes it easy to scale-up, and the reaction can be carried out on raw plant materials directly. In accordance with green chemistry concepts, solvents and excess reagents can readily be recovered by distillation and recycled.
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Furylated Flavonoids: Fully Biobased Building Blocks Produced by Condensed Tannins Depolymerization
2017Co-Authors: Laurent Rouméas, Chahinez Aouf, Eric Dubreucq, Guillaume Billerach, Helene FulcrandAbstract:An original method has been set up to produce fully biobased phenolic building blocks from condensed tannins, largely available from agroindustrial residues or Wood Industry coproducts. The acid-catalyzed depolymerization of condensed tannins in the presence of furan or sylvan in mild conditions (30–40 °C, 0.1 M HCl) gives the corresponding furylated flavonoids with high yields. The reaction was more efficient with sylvan than with the less nucleophilic furan. A key feature of the products is the high stability of the flavanyl to furyl C–C linkage compared to the thioether bond obtained by the classical thiolysis, which makes them promising platform molecules for further functionalization, including in alkaline conditions. The simplicity of the process makes it easy to scale-up, and the reaction can be carried out on raw plant materials directly. In accordance with green chemistry concepts, solvents and excess reagents can readily be recovered by distillation and recycled
Junji Sugiyama - One of the best experts on this subject based on the ideXlab platform.
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Computer vision-based Wood identification and its expansion and contribution potentials in Wood science: A review
Plant Methods, 2021Co-Authors: Sung-wook Hwang, Junji SugiyamaAbstract:AbstractThe remarkable developments in computer vision and machine learning have changed the methodologies of many scientific disciplines. They have also created a new research field in Wood science called computer vision-based Wood identification, which is making steady progress towards the goal of building automated Wood identification systems to meet the needs of the Wood Industry and market. Nevertheless, computer vision-based Wood identification is still only a small area in Wood science and is still unfamiliar to many Wood anatomists. To familiarize Wood scientists with the artificial intelligence-assisted Wood anatomy and engineering methods, we have reviewed the published mainstream studies that used or developed machine learning procedures. This review could help researchers understand computer vision and machine learning techniques for Wood identification and choose appropriate techniques or strategies for their study objectives in Wood science.
Laurent Roumeas - One of the best experts on this subject based on the ideXlab platform.
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Furylated flavonoids: fully biobased building blocks produced by condensed tannins depolymerization
ACS Sustainable Chemistry & Engineering, 2018Co-Authors: Laurent Roumeas, Chahinez Aouf, Eric Dubreucq, Guillaume Billerach, Helene FulcrandAbstract:An original method has been set up to produce fully biobased phenolic building blocks from condensed tannins, largely available from agroindustrial residues or Wood Industry coproducts. The acid-catalyzed depolymerization of condensed tannins in the presence of furan or sylvan in mild conditions (30-40 degrees C, 0.1 M HCl) gives the corresponding furylated flavonoids with high yields. The reaction was more efficient with sylvan than with the less nucleophilic furan. A key feature of the products is the high stability of the flavanyl to furyl C-C linkage compared to the thioether bond obtained by the classical thiolysis, which makes them promising platform molecules for further functionalization, including in alkaline conditions. The simplicity of the process makes it easy to scale-up, and the reaction can be carried out on raw plant materials directly. In accordance with green chemistry concepts, solvents and excess reagents can readily be recovered by distillation and recycled.
Sung-wook Hwang - One of the best experts on this subject based on the ideXlab platform.
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Computer vision-based Wood identification and its expansion and contribution potentials in Wood science: A review
Plant Methods, 2021Co-Authors: Sung-wook Hwang, Junji SugiyamaAbstract:AbstractThe remarkable developments in computer vision and machine learning have changed the methodologies of many scientific disciplines. They have also created a new research field in Wood science called computer vision-based Wood identification, which is making steady progress towards the goal of building automated Wood identification systems to meet the needs of the Wood Industry and market. Nevertheless, computer vision-based Wood identification is still only a small area in Wood science and is still unfamiliar to many Wood anatomists. To familiarize Wood scientists with the artificial intelligence-assisted Wood anatomy and engineering methods, we have reviewed the published mainstream studies that used or developed machine learning procedures. This review could help researchers understand computer vision and machine learning techniques for Wood identification and choose appropriate techniques or strategies for their study objectives in Wood science.
Guillaume Billerach - One of the best experts on this subject based on the ideXlab platform.
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Furylated flavonoids: fully biobased building blocks produced by condensed tannins depolymerization
ACS Sustainable Chemistry & Engineering, 2018Co-Authors: Laurent Roumeas, Chahinez Aouf, Eric Dubreucq, Guillaume Billerach, Helene FulcrandAbstract:An original method has been set up to produce fully biobased phenolic building blocks from condensed tannins, largely available from agroindustrial residues or Wood Industry coproducts. The acid-catalyzed depolymerization of condensed tannins in the presence of furan or sylvan in mild conditions (30-40 degrees C, 0.1 M HCl) gives the corresponding furylated flavonoids with high yields. The reaction was more efficient with sylvan than with the less nucleophilic furan. A key feature of the products is the high stability of the flavanyl to furyl C-C linkage compared to the thioether bond obtained by the classical thiolysis, which makes them promising platform molecules for further functionalization, including in alkaline conditions. The simplicity of the process makes it easy to scale-up, and the reaction can be carried out on raw plant materials directly. In accordance with green chemistry concepts, solvents and excess reagents can readily be recovered by distillation and recycled.
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Furylated Flavonoids: Fully Biobased Building Blocks Produced by Condensed Tannins Depolymerization
2017Co-Authors: Laurent Rouméas, Chahinez Aouf, Eric Dubreucq, Guillaume Billerach, Helene FulcrandAbstract:An original method has been set up to produce fully biobased phenolic building blocks from condensed tannins, largely available from agroindustrial residues or Wood Industry coproducts. The acid-catalyzed depolymerization of condensed tannins in the presence of furan or sylvan in mild conditions (30–40 °C, 0.1 M HCl) gives the corresponding furylated flavonoids with high yields. The reaction was more efficient with sylvan than with the less nucleophilic furan. A key feature of the products is the high stability of the flavanyl to furyl C–C linkage compared to the thioether bond obtained by the classical thiolysis, which makes them promising platform molecules for further functionalization, including in alkaline conditions. The simplicity of the process makes it easy to scale-up, and the reaction can be carried out on raw plant materials directly. In accordance with green chemistry concepts, solvents and excess reagents can readily be recovered by distillation and recycled
