The Experts below are selected from a list of 303 Experts worldwide ranked by ideXlab platform

Antonio Heredia - One of the best experts on this subject based on the ideXlab platform.

  • applications and potentialities of atomic force microscopy in fossil and extant Plant Cuticle characterization
    Review of Palaeobotany and Palynology, 2019
    Co-Authors: Jose J Benitez, Antonio Heredia, Eva Domínguez, Susana Guzmanpuyol, Jose A Herediaguerrero
    Abstract:

    Abstract Atomic Force Microscopy (AFM) is a versatile technique of surface characterization, providing accurate information about the topography and other wide variety of magnitudes at submicron scale. It is extensively utilized in materials science, but its use in other disciplines such as paleobotany is infrequent. In this review, we introduce the main concepts of AFM to paleobotanists, comparing the characteristics of this technique to common electronic and optical microscopies. Then, main works with extant Plants, in particular Plant Cuticles, are described. Finally, realistic applications with fossils are reviewed and their potential use in the characterization of Plant fossils discussed. AFM is proposed as a complementary technique to common microscopies to characterize Plant Cuticle fine details at nanoscale.

  • sustainable fabrication of Plant Cuticle like packaging films from tomato pomace agro waste beeswax and alginate
    ACS Sustainable Chemistry & Engineering, 2018
    Co-Authors: Giacomo Tedeschi, José Jesús Benitez, Luca Ceseracciu, Keyvan Dastmalchi, Boris Itin, Ruth E. Stark, Antonio Heredia, Athanassia Athanassiou, Jose A Herediaguerrero
    Abstract:

    Plant Cuticles have been used as models to produce hydrophobic films composed of sodium alginate, the fatty acid fraction of tomato pomace agrowaste, and beeswax. The fabrication process consisted of the blending of components in green solvents (water and ethanol) and a subsequent thermal treatment (150 °C, 8 h) to polymerize unsaturated and polyhydroxylated fatty acids from tomato pomace. When sodium alginate and tomato pomace fatty acids were blended, free-standing films were obtained. These films were characterized to evaluate their morphological (SEM), chemical (solid-state NMR, ATR-FTIR), mechanical (tensile tests), thermal (TGA), and hydrodynamic (water contact angle, uptake, and permeability) properties. A comparison between nonpolymerized and polymerized samples was carried out, revealing that the thermal treatment represents a sustainable route to create structured, composite networks of both components. Finally, beeswax was added to the blend with the same amounts of sodium alginate and tomato p...

  • Plant Cuticle under global change: Biophysical implications.
    Global change biology, 2018
    Co-Authors: José A. Heredia-guerrero, Antonio Heredia, Athanassia Athanassiou, Jose J Benitez, Susana Guzman-puyol, Eva Domínguez
    Abstract:

    Climatic stressors due to global change induce important modifications to the chemical composition of Plant Cuticles and their biophysical properties. In particular, Plant Cuticles can become heavier, stiffer and more inert, improving Plant protection.

  • Sustainable Fabrication of Plant Cuticle-Like Packaging Films from Tomato Pomace Agro-Waste, Beeswax, and Alginate
    2018
    Co-Authors: Giacomo Tedeschi, José Jesús Benitez, Luca Ceseracciu, Keyvan Dastmalchi, Boris Itin, Ruth E. Stark, Antonio Heredia, Athanassia Athanassiou, José A. Heredia-guerrero
    Abstract:

    Plant Cuticles have been used as models to produce hydrophobic films composed of sodium alginate, the fatty acid fraction of tomato pomace agrowaste, and beeswax. The fabrication process consisted of the blending of components in green solvents (water and ethanol) and a subsequent thermal treatment (150 °C, 8 h) to polymerize unsaturated and polyhydroxylated fatty acids from tomato pomace. When sodium alginate and tomato pomace fatty acids were blended, free-standing films were obtained. These films were characterized to evaluate their morphological (SEM), chemical (solid-state NMR, ATR-FTIR), mechanical (tensile tests), thermal (TGA), and hydrodynamic (water contact angle, uptake, and permeability) properties. A comparison between nonpolymerized and polymerized samples was carried out, revealing that the thermal treatment represents a sustainable route to create structured, composite networks of both components. Finally, beeswax was added to the blend with the same amounts of sodium alginate and tomato pomace fatty acids. The presence of the wax improved the hydrophobicity and the mechanical and water barrier properties as well as decreased the water uptake. These results indicate that polymerized Plant Cuticle-like films have valuable potential for packaging applications

  • Infrared and Raman spectroscopic features of Plant Cuticles: a review
    Frontiers in plant science, 2014
    Co-Authors: José A. Heredia-guerrero, Athanassia Athanassiou, Eva Domínguez, Jose J Benitez, Ilker S. Bayer, Roberto Cingolani, Antonio Heredia
    Abstract:

    The Cuticle is one of the most important Plant barriers. It is an external and continuous lipid membrane that covers the surface of epidermal cells and whose main function is to prevent the massive loss of water. The spectroscopic characterization of the Plant Cuticle and its components (cutin, cutan, waxes, polysaccharides and phenolics) by infrared and Raman spectroscopies has provided significant advances in the knowledge of the functional groups present in the cuticular matrix and on their structural role, interaction and macromolecular arrangement. Additionally, these spectroscopies have been used in the study of Cuticle interaction with exogenous molecules, degradation, distribution of components within the Cuticle matrix, changes during growth and development and characterization of fossil Plants.

Jose A Herediaguerrero - One of the best experts on this subject based on the ideXlab platform.

  • applications and potentialities of atomic force microscopy in fossil and extant Plant Cuticle characterization
    Review of Palaeobotany and Palynology, 2019
    Co-Authors: Jose J Benitez, Antonio Heredia, Eva Domínguez, Susana Guzmanpuyol, Jose A Herediaguerrero
    Abstract:

    Abstract Atomic Force Microscopy (AFM) is a versatile technique of surface characterization, providing accurate information about the topography and other wide variety of magnitudes at submicron scale. It is extensively utilized in materials science, but its use in other disciplines such as paleobotany is infrequent. In this review, we introduce the main concepts of AFM to paleobotanists, comparing the characteristics of this technique to common electronic and optical microscopies. Then, main works with extant Plants, in particular Plant Cuticles, are described. Finally, realistic applications with fossils are reviewed and their potential use in the characterization of Plant fossils discussed. AFM is proposed as a complementary technique to common microscopies to characterize Plant Cuticle fine details at nanoscale.

  • sustainable fabrication of Plant Cuticle like packaging films from tomato pomace agro waste beeswax and alginate
    ACS Sustainable Chemistry & Engineering, 2018
    Co-Authors: Giacomo Tedeschi, José Jesús Benitez, Luca Ceseracciu, Keyvan Dastmalchi, Boris Itin, Ruth E. Stark, Antonio Heredia, Athanassia Athanassiou, Jose A Herediaguerrero
    Abstract:

    Plant Cuticles have been used as models to produce hydrophobic films composed of sodium alginate, the fatty acid fraction of tomato pomace agrowaste, and beeswax. The fabrication process consisted of the blending of components in green solvents (water and ethanol) and a subsequent thermal treatment (150 °C, 8 h) to polymerize unsaturated and polyhydroxylated fatty acids from tomato pomace. When sodium alginate and tomato pomace fatty acids were blended, free-standing films were obtained. These films were characterized to evaluate their morphological (SEM), chemical (solid-state NMR, ATR-FTIR), mechanical (tensile tests), thermal (TGA), and hydrodynamic (water contact angle, uptake, and permeability) properties. A comparison between nonpolymerized and polymerized samples was carried out, revealing that the thermal treatment represents a sustainable route to create structured, composite networks of both components. Finally, beeswax was added to the blend with the same amounts of sodium alginate and tomato p...

  • the biophysical design of Plant Cuticles an overview
    New Phytologist, 2011
    Co-Authors: Eva Domínguez, Jose A Herediaguerrero, Antonio Heredia
    Abstract:

    The outer surfaces of epidermal cell walls are impregnated with an extracellular matrix called the Cuticle. This composite matrix provides several functions at the interface level that enable Plants to thrive in different habitats and withstand adverse environmental conditions. The lipid polymer cutin, which is the main constituent of the Plant Cuticle, has some unique biophysical properties resulting from its composition and structure. This review summarizes the progress made towards understanding the biophysical significance of this biopolymer with special focus on its structural, thermal, biomechanical, and hydric properties and relationships. The physiological relevance of such biophysical properties is discussed in light of existing knowledge on the Plant Cuticle.

Gaetan Guignard - One of the best experts on this subject based on the ideXlab platform.

  • thirty three years 1986 2019 of fossil Plant Cuticle studies using transmission electron microscopy a review
    Review of Palaeobotany and Palynology, 2019
    Co-Authors: Gaetan Guignard
    Abstract:

    Abstract Although the Cuticle is a very thin layer of a few micrometers, it is one of the main remains found among fossil Plants. Apparently very fragile, ultrathin Cuticle sections of few dozen nanometers thick are studied by using TEM studies and statistical measurements. The ultrastructure details yielded are of significance not only for taxonomy, but also for paleoenvironment and evolution of fossil Plant. After an historical introduction and a review of the methods to obtain and observe the ultrathin sections, although data are still not enough numerous, detailed information and interesting facts of Cuticle ultrastructure emerge from the studied Plant groups. This paper gives a review of the main results of transmission electron microscopy -TEM- of fossil Plant Cuticles since the pioneering study 33 years ago.

  • Thirty-three years (1986–2019) of fossil Plant Cuticle studies using transmission electron microscopy: A review
    Review of Palaeobotany and Palynology, 2019
    Co-Authors: Gaetan Guignard
    Abstract:

    Abstract Although the Cuticle is a very thin layer of a few micrometers, it is one of the main remains found among fossil Plants. Apparently very fragile, ultrathin Cuticle sections of few dozen nanometers thick are studied by using TEM studies and statistical measurements. The ultrastructure details yielded are of significance not only for taxonomy, but also for paleoenvironment and evolution of fossil Plant. After an historical introduction and a review of the methods to obtain and observe the ultrathin sections, although data are still not enough numerous, detailed information and interesting facts of Cuticle ultrastructure emerge from the studied Plant groups. This paper gives a review of the main results of transmission electron microscopy -TEM- of fossil Plant Cuticles since the pioneering study 33 years ago.

Ruth E. Stark - One of the best experts on this subject based on the ideXlab platform.

  • sustainable fabrication of Plant Cuticle like packaging films from tomato pomace agro waste beeswax and alginate
    ACS Sustainable Chemistry & Engineering, 2018
    Co-Authors: Giacomo Tedeschi, José Jesús Benitez, Luca Ceseracciu, Keyvan Dastmalchi, Boris Itin, Ruth E. Stark, Antonio Heredia, Athanassia Athanassiou, Jose A Herediaguerrero
    Abstract:

    Plant Cuticles have been used as models to produce hydrophobic films composed of sodium alginate, the fatty acid fraction of tomato pomace agrowaste, and beeswax. The fabrication process consisted of the blending of components in green solvents (water and ethanol) and a subsequent thermal treatment (150 °C, 8 h) to polymerize unsaturated and polyhydroxylated fatty acids from tomato pomace. When sodium alginate and tomato pomace fatty acids were blended, free-standing films were obtained. These films were characterized to evaluate their morphological (SEM), chemical (solid-state NMR, ATR-FTIR), mechanical (tensile tests), thermal (TGA), and hydrodynamic (water contact angle, uptake, and permeability) properties. A comparison between nonpolymerized and polymerized samples was carried out, revealing that the thermal treatment represents a sustainable route to create structured, composite networks of both components. Finally, beeswax was added to the blend with the same amounts of sodium alginate and tomato p...

  • Sustainable Fabrication of Plant Cuticle-Like Packaging Films from Tomato Pomace Agro-Waste, Beeswax, and Alginate
    2018
    Co-Authors: Giacomo Tedeschi, José Jesús Benitez, Luca Ceseracciu, Keyvan Dastmalchi, Boris Itin, Ruth E. Stark, Antonio Heredia, Athanassia Athanassiou, José A. Heredia-guerrero
    Abstract:

    Plant Cuticles have been used as models to produce hydrophobic films composed of sodium alginate, the fatty acid fraction of tomato pomace agrowaste, and beeswax. The fabrication process consisted of the blending of components in green solvents (water and ethanol) and a subsequent thermal treatment (150 °C, 8 h) to polymerize unsaturated and polyhydroxylated fatty acids from tomato pomace. When sodium alginate and tomato pomace fatty acids were blended, free-standing films were obtained. These films were characterized to evaluate their morphological (SEM), chemical (solid-state NMR, ATR-FTIR), mechanical (tensile tests), thermal (TGA), and hydrodynamic (water contact angle, uptake, and permeability) properties. A comparison between nonpolymerized and polymerized samples was carried out, revealing that the thermal treatment represents a sustainable route to create structured, composite networks of both components. Finally, beeswax was added to the blend with the same amounts of sodium alginate and tomato pomace fatty acids. The presence of the wax improved the hydrophobicity and the mechanical and water barrier properties as well as decreased the water uptake. These results indicate that polymerized Plant Cuticle-like films have valuable potential for packaging applications

  • Isolation and spectral characterization of Plant-Cuticle polyesters
    Journal of Agricultural and Food Chemistry, 1993
    Co-Authors: Ralph A. Pacchiano, Won. Sohn, Vicki L. Chlanda, Joel R. Garbow, Ruth E. Stark
    Abstract:

    An efficient protocol combining enzymatic and chemical methods has been developed for the isolation of lime fruit cutin and potato suberin in pure form and with excellent yields. Starting with the procedures specified by commercial assay kits for model substrates, the breakdown of cellulose, pectin, and hemicellulose cell-wall constituents was optimized with respect to enzyme concentration, substrate concentration, reaction time, and temperature. The optimized procedures were then applied to the Plant polyesters cutin and suberin, with the isolation process monitored in parallel by gravimetric methods and with cross-polarization magic-angle spinning 13 C NMR

Athanassia Athanassiou - One of the best experts on this subject based on the ideXlab platform.

  • sustainable fabrication of Plant Cuticle like packaging films from tomato pomace agro waste beeswax and alginate
    ACS Sustainable Chemistry & Engineering, 2018
    Co-Authors: Giacomo Tedeschi, José Jesús Benitez, Luca Ceseracciu, Keyvan Dastmalchi, Boris Itin, Ruth E. Stark, Antonio Heredia, Athanassia Athanassiou, Jose A Herediaguerrero
    Abstract:

    Plant Cuticles have been used as models to produce hydrophobic films composed of sodium alginate, the fatty acid fraction of tomato pomace agrowaste, and beeswax. The fabrication process consisted of the blending of components in green solvents (water and ethanol) and a subsequent thermal treatment (150 °C, 8 h) to polymerize unsaturated and polyhydroxylated fatty acids from tomato pomace. When sodium alginate and tomato pomace fatty acids were blended, free-standing films were obtained. These films were characterized to evaluate their morphological (SEM), chemical (solid-state NMR, ATR-FTIR), mechanical (tensile tests), thermal (TGA), and hydrodynamic (water contact angle, uptake, and permeability) properties. A comparison between nonpolymerized and polymerized samples was carried out, revealing that the thermal treatment represents a sustainable route to create structured, composite networks of both components. Finally, beeswax was added to the blend with the same amounts of sodium alginate and tomato p...

  • Plant Cuticle under global change: Biophysical implications.
    Global change biology, 2018
    Co-Authors: José A. Heredia-guerrero, Antonio Heredia, Athanassia Athanassiou, Jose J Benitez, Susana Guzman-puyol, Eva Domínguez
    Abstract:

    Climatic stressors due to global change induce important modifications to the chemical composition of Plant Cuticles and their biophysical properties. In particular, Plant Cuticles can become heavier, stiffer and more inert, improving Plant protection.

  • Sustainable Fabrication of Plant Cuticle-Like Packaging Films from Tomato Pomace Agro-Waste, Beeswax, and Alginate
    2018
    Co-Authors: Giacomo Tedeschi, José Jesús Benitez, Luca Ceseracciu, Keyvan Dastmalchi, Boris Itin, Ruth E. Stark, Antonio Heredia, Athanassia Athanassiou, José A. Heredia-guerrero
    Abstract:

    Plant Cuticles have been used as models to produce hydrophobic films composed of sodium alginate, the fatty acid fraction of tomato pomace agrowaste, and beeswax. The fabrication process consisted of the blending of components in green solvents (water and ethanol) and a subsequent thermal treatment (150 °C, 8 h) to polymerize unsaturated and polyhydroxylated fatty acids from tomato pomace. When sodium alginate and tomato pomace fatty acids were blended, free-standing films were obtained. These films were characterized to evaluate their morphological (SEM), chemical (solid-state NMR, ATR-FTIR), mechanical (tensile tests), thermal (TGA), and hydrodynamic (water contact angle, uptake, and permeability) properties. A comparison between nonpolymerized and polymerized samples was carried out, revealing that the thermal treatment represents a sustainable route to create structured, composite networks of both components. Finally, beeswax was added to the blend with the same amounts of sodium alginate and tomato pomace fatty acids. The presence of the wax improved the hydrophobicity and the mechanical and water barrier properties as well as decreased the water uptake. These results indicate that polymerized Plant Cuticle-like films have valuable potential for packaging applications

  • Infrared and Raman spectroscopic features of Plant Cuticles: a review
    Frontiers in plant science, 2014
    Co-Authors: José A. Heredia-guerrero, Athanassia Athanassiou, Eva Domínguez, Jose J Benitez, Ilker S. Bayer, Roberto Cingolani, Antonio Heredia
    Abstract:

    The Cuticle is one of the most important Plant barriers. It is an external and continuous lipid membrane that covers the surface of epidermal cells and whose main function is to prevent the massive loss of water. The spectroscopic characterization of the Plant Cuticle and its components (cutin, cutan, waxes, polysaccharides and phenolics) by infrared and Raman spectroscopies has provided significant advances in the knowledge of the functional groups present in the cuticular matrix and on their structural role, interaction and macromolecular arrangement. Additionally, these spectroscopies have been used in the study of Cuticle interaction with exogenous molecules, degradation, distribution of components within the Cuticle matrix, changes during growth and development and characterization of fossil Plants.