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Annalaura Segre - One of the best experts on this subject based on the ideXlab platform.

  • Metabolic profile of lettuce leaves by high‐field NMR spectra
    Magnetic Resonance in Chemistry, 2005
    Co-Authors: Anatoli P. Sobolev, Raffaella Gianferri, E Brosio, Annalaura Segre
    Abstract:

    A detailed analysis of the proton high-field NMR spectra of aqueous and organic extracts of lettuce leaves is reported for the first time. A combination of COSY, TOCSY, 1H–13C HSQC, 1H–13C HMBC bidimensional sequences and DOSY was used to assign each spin system and to separate the components of the complex patterns. A large number of water-soluble metabolites belonging to different classes such as carbohydrates, polyols, organic acids and amino acids were fully assigned. Moreover, the complex spectra of metabolites extracted in organic solvents belonging to sterols, fatty acids, diacylglycerophospholipids, galactosyldiacylglycerols, sulpholipids, pheophytins, carotenoids and hydrocarbons were also assigned. Copyright © 2005 John Wiley & Sons, Ltd.

  • metabolic profile of lettuce leaves by high field nmr spectra
    Magnetic Resonance in Chemistry, 2005
    Co-Authors: Anatoli P. Sobolev, Raffaella Gianferri, E Brosio, Annalaura Segre
    Abstract:

    A detailed analysis of the proton high-field NMR spectra of aqueous and organic extracts of lettuce leaves is reported for the first time. A combination of COSY, TOCSY, 1H–13C HSQC, 1H–13C HMBC bidimensional sequences and DOSY was used to assign each spin system and to separate the components of the complex patterns. A large number of water-soluble metabolites belonging to different classes such as carbohydrates, polyols, organic acids and amino acids were fully assigned. Moreover, the complex spectra of metabolites extracted in organic solvents belonging to sterols, fatty acids, diacylglycerophospholipids, galactosyldiacylglycerols, sulpholipids, pheophytins, carotenoids and hydrocarbons were also assigned. Copyright © 2005 John Wiley & Sons, Ltd.

  • High-Field Nuclear Magnetic Resonance (NMR) Study of Truffles (Tuber aestivum vittadini)
    Journal of Agricultural and Food Chemistry, 2004
    Co-Authors: Luisa Mannina, Michela Cristinzio, Anatoli P. Sobolev, Pietro Ragni, Annalaura Segre
    Abstract:

    A high-field NMR technique was used to analyze aqueous and organic extracts of truffles (Tuber aestivum vittadini) to characterize their chemical composition. Water-soluble metabolites belonging to different classes such as sugars, polyols, amino acids, and organic acids were almost completely assigned by means of one- and two-dimensional experiments (1H−1H COSY, TOCSY, 1H−13C HSQC, 1H−13C HMBC, and 1H−31P HMBC). The 1H spectral assignment of the cell membrane components such as lipids, sterols, and fatty acids extracted in organic solvents was also performed. Keywords: Truffles; Tuber aestivum vittadini; chemical composition; metabolites; NMR

  • High-Field Nuclear Magnetic Resonance (NMR) Study of Truffles (Tuber aestivum vittadini)
    Journal of agricultural and food chemistry, 2004
    Co-Authors: Luisa Mannina, Michela Cristinzio, Anatoli P. Sobolev, Pietro Ragni, Annalaura Segre
    Abstract:

    A high-field NMR technique was used to analyze aqueous and organic extracts of truffles (Tuber aestivum vittadini) to characterize their chemical composition. Water-soluble metabolites belonging to different classes such as sugars, polyols, amino acids, and organic acids were almost completely assigned by means of one- and two-dimensional experiments (1H-1H COSY, TOCSY, 1H-13C HSQC, 1H-13C HMBC, and 1H-31P HMBC). The 1H spectral assignment of the cell membrane components such as lipids, sterols, and fatty acids extracted in organic solvents was also performed.

  • Proton high‐field NMR study of tomato juice
    Magnetic Resonance in Chemistry, 2003
    Co-Authors: Anatoli P. Sobolev, Annalaura Segre, Raffaele Lamanna
    Abstract:

    A detailed analysis of the proton high-field (600 MHz) NMR spectra of tomato juice and pulp is reported for the first time. A combination of J-resolved, COSY, TOCSY, DOSY, 1H–13C HSQC and 1H–13C HMBC 2D sequences was used to assign each spin system and to separate the components of the complex patterns in the 1D overlapped proton spectra. To obtain resolved proton spectra of tomato pulps the high-resolution magic angle spinning technique was used; a comparison with the liquid-state NMR spectra of the corresponding juices was accomplished. On the basis of the assignments made, the chemical composition of tomato juices from two cultivars (Red Setter and Ciliegino) was determined. Copyright © 2003 John Wiley & Sons, Ltd.

Luisa Mannina - One of the best experts on this subject based on the ideXlab platform.

  • High-Field Nuclear Magnetic Resonance (NMR) Study of Truffles (Tuber aestivum vittadini)
    Journal of Agricultural and Food Chemistry, 2004
    Co-Authors: Luisa Mannina, Michela Cristinzio, Anatoli P. Sobolev, Pietro Ragni, Annalaura Segre
    Abstract:

    A high-field NMR technique was used to analyze aqueous and organic extracts of truffles (Tuber aestivum vittadini) to characterize their chemical composition. Water-soluble metabolites belonging to different classes such as sugars, polyols, amino acids, and organic acids were almost completely assigned by means of one- and two-dimensional experiments (1H−1H COSY, TOCSY, 1H−13C HSQC, 1H−13C HMBC, and 1H−31P HMBC). The 1H spectral assignment of the cell membrane components such as lipids, sterols, and fatty acids extracted in organic solvents was also performed. Keywords: Truffles; Tuber aestivum vittadini; chemical composition; metabolites; NMR

  • High-Field Nuclear Magnetic Resonance (NMR) Study of Truffles (Tuber aestivum vittadini)
    Journal of agricultural and food chemistry, 2004
    Co-Authors: Luisa Mannina, Michela Cristinzio, Anatoli P. Sobolev, Pietro Ragni, Annalaura Segre
    Abstract:

    A high-field NMR technique was used to analyze aqueous and organic extracts of truffles (Tuber aestivum vittadini) to characterize their chemical composition. Water-soluble metabolites belonging to different classes such as sugars, polyols, amino acids, and organic acids were almost completely assigned by means of one- and two-dimensional experiments (1H-1H COSY, TOCSY, 1H-13C HSQC, 1H-13C HMBC, and 1H-31P HMBC). The 1H spectral assignment of the cell membrane components such as lipids, sterols, and fatty acids extracted in organic solvents was also performed.

Pietro Ragni - One of the best experts on this subject based on the ideXlab platform.

  • High-Field Nuclear Magnetic Resonance (NMR) Study of Truffles (Tuber aestivum vittadini)
    Journal of Agricultural and Food Chemistry, 2004
    Co-Authors: Luisa Mannina, Michela Cristinzio, Anatoli P. Sobolev, Pietro Ragni, Annalaura Segre
    Abstract:

    A high-field NMR technique was used to analyze aqueous and organic extracts of truffles (Tuber aestivum vittadini) to characterize their chemical composition. Water-soluble metabolites belonging to different classes such as sugars, polyols, amino acids, and organic acids were almost completely assigned by means of one- and two-dimensional experiments (1H−1H COSY, TOCSY, 1H−13C HSQC, 1H−13C HMBC, and 1H−31P HMBC). The 1H spectral assignment of the cell membrane components such as lipids, sterols, and fatty acids extracted in organic solvents was also performed. Keywords: Truffles; Tuber aestivum vittadini; chemical composition; metabolites; NMR

  • High-Field Nuclear Magnetic Resonance (NMR) Study of Truffles (Tuber aestivum vittadini)
    Journal of agricultural and food chemistry, 2004
    Co-Authors: Luisa Mannina, Michela Cristinzio, Anatoli P. Sobolev, Pietro Ragni, Annalaura Segre
    Abstract:

    A high-field NMR technique was used to analyze aqueous and organic extracts of truffles (Tuber aestivum vittadini) to characterize their chemical composition. Water-soluble metabolites belonging to different classes such as sugars, polyols, amino acids, and organic acids were almost completely assigned by means of one- and two-dimensional experiments (1H-1H COSY, TOCSY, 1H-13C HSQC, 1H-13C HMBC, and 1H-31P HMBC). The 1H spectral assignment of the cell membrane components such as lipids, sterols, and fatty acids extracted in organic solvents was also performed.

Michela Cristinzio - One of the best experts on this subject based on the ideXlab platform.

  • High-Field Nuclear Magnetic Resonance (NMR) Study of Truffles (Tuber aestivum vittadini)
    Journal of Agricultural and Food Chemistry, 2004
    Co-Authors: Luisa Mannina, Michela Cristinzio, Anatoli P. Sobolev, Pietro Ragni, Annalaura Segre
    Abstract:

    A high-field NMR technique was used to analyze aqueous and organic extracts of truffles (Tuber aestivum vittadini) to characterize their chemical composition. Water-soluble metabolites belonging to different classes such as sugars, polyols, amino acids, and organic acids were almost completely assigned by means of one- and two-dimensional experiments (1H−1H COSY, TOCSY, 1H−13C HSQC, 1H−13C HMBC, and 1H−31P HMBC). The 1H spectral assignment of the cell membrane components such as lipids, sterols, and fatty acids extracted in organic solvents was also performed. Keywords: Truffles; Tuber aestivum vittadini; chemical composition; metabolites; NMR

  • High-Field Nuclear Magnetic Resonance (NMR) Study of Truffles (Tuber aestivum vittadini)
    Journal of agricultural and food chemistry, 2004
    Co-Authors: Luisa Mannina, Michela Cristinzio, Anatoli P. Sobolev, Pietro Ragni, Annalaura Segre
    Abstract:

    A high-field NMR technique was used to analyze aqueous and organic extracts of truffles (Tuber aestivum vittadini) to characterize their chemical composition. Water-soluble metabolites belonging to different classes such as sugars, polyols, amino acids, and organic acids were almost completely assigned by means of one- and two-dimensional experiments (1H-1H COSY, TOCSY, 1H-13C HSQC, 1H-13C HMBC, and 1H-31P HMBC). The 1H spectral assignment of the cell membrane components such as lipids, sterols, and fatty acids extracted in organic solvents was also performed.

Anatoli P. Sobolev - One of the best experts on this subject based on the ideXlab platform.

  • Metabolic profile of lettuce leaves by high‐field NMR spectra
    Magnetic Resonance in Chemistry, 2005
    Co-Authors: Anatoli P. Sobolev, Raffaella Gianferri, E Brosio, Annalaura Segre
    Abstract:

    A detailed analysis of the proton high-field NMR spectra of aqueous and organic extracts of lettuce leaves is reported for the first time. A combination of COSY, TOCSY, 1H–13C HSQC, 1H–13C HMBC bidimensional sequences and DOSY was used to assign each spin system and to separate the components of the complex patterns. A large number of water-soluble metabolites belonging to different classes such as carbohydrates, polyols, organic acids and amino acids were fully assigned. Moreover, the complex spectra of metabolites extracted in organic solvents belonging to sterols, fatty acids, diacylglycerophospholipids, galactosyldiacylglycerols, sulpholipids, pheophytins, carotenoids and hydrocarbons were also assigned. Copyright © 2005 John Wiley & Sons, Ltd.

  • metabolic profile of lettuce leaves by high field nmr spectra
    Magnetic Resonance in Chemistry, 2005
    Co-Authors: Anatoli P. Sobolev, Raffaella Gianferri, E Brosio, Annalaura Segre
    Abstract:

    A detailed analysis of the proton high-field NMR spectra of aqueous and organic extracts of lettuce leaves is reported for the first time. A combination of COSY, TOCSY, 1H–13C HSQC, 1H–13C HMBC bidimensional sequences and DOSY was used to assign each spin system and to separate the components of the complex patterns. A large number of water-soluble metabolites belonging to different classes such as carbohydrates, polyols, organic acids and amino acids were fully assigned. Moreover, the complex spectra of metabolites extracted in organic solvents belonging to sterols, fatty acids, diacylglycerophospholipids, galactosyldiacylglycerols, sulpholipids, pheophytins, carotenoids and hydrocarbons were also assigned. Copyright © 2005 John Wiley & Sons, Ltd.

  • High-Field Nuclear Magnetic Resonance (NMR) Study of Truffles (Tuber aestivum vittadini)
    Journal of Agricultural and Food Chemistry, 2004
    Co-Authors: Luisa Mannina, Michela Cristinzio, Anatoli P. Sobolev, Pietro Ragni, Annalaura Segre
    Abstract:

    A high-field NMR technique was used to analyze aqueous and organic extracts of truffles (Tuber aestivum vittadini) to characterize their chemical composition. Water-soluble metabolites belonging to different classes such as sugars, polyols, amino acids, and organic acids were almost completely assigned by means of one- and two-dimensional experiments (1H−1H COSY, TOCSY, 1H−13C HSQC, 1H−13C HMBC, and 1H−31P HMBC). The 1H spectral assignment of the cell membrane components such as lipids, sterols, and fatty acids extracted in organic solvents was also performed. Keywords: Truffles; Tuber aestivum vittadini; chemical composition; metabolites; NMR

  • High-Field Nuclear Magnetic Resonance (NMR) Study of Truffles (Tuber aestivum vittadini)
    Journal of agricultural and food chemistry, 2004
    Co-Authors: Luisa Mannina, Michela Cristinzio, Anatoli P. Sobolev, Pietro Ragni, Annalaura Segre
    Abstract:

    A high-field NMR technique was used to analyze aqueous and organic extracts of truffles (Tuber aestivum vittadini) to characterize their chemical composition. Water-soluble metabolites belonging to different classes such as sugars, polyols, amino acids, and organic acids were almost completely assigned by means of one- and two-dimensional experiments (1H-1H COSY, TOCSY, 1H-13C HSQC, 1H-13C HMBC, and 1H-31P HMBC). The 1H spectral assignment of the cell membrane components such as lipids, sterols, and fatty acids extracted in organic solvents was also performed.

  • Proton high‐field NMR study of tomato juice
    Magnetic Resonance in Chemistry, 2003
    Co-Authors: Anatoli P. Sobolev, Annalaura Segre, Raffaele Lamanna
    Abstract:

    A detailed analysis of the proton high-field (600 MHz) NMR spectra of tomato juice and pulp is reported for the first time. A combination of J-resolved, COSY, TOCSY, DOSY, 1H–13C HSQC and 1H–13C HMBC 2D sequences was used to assign each spin system and to separate the components of the complex patterns in the 1D overlapped proton spectra. To obtain resolved proton spectra of tomato pulps the high-resolution magic angle spinning technique was used; a comparison with the liquid-state NMR spectra of the corresponding juices was accomplished. On the basis of the assignments made, the chemical composition of tomato juices from two cultivars (Red Setter and Ciliegino) was determined. Copyright © 2003 John Wiley & Sons, Ltd.