High-field NMR spectroscopy of cystocarpic and tetrasporic carrageenans from Iridaea undulosa

High-field 1H and 13C NMR spectroscopy has been used to characterize the fine structure of the cystocarpic and tetrasporic carrageenans from Iridaea undulosa. The proportion of different carrageenans from the κ-family in cystocarpic samples were calculated. In the 13C NMR spectra of the tetrasporic...

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Detalles Bibliográficos
Autores principales: Stortz, C.A., Bacon, B.E., Cherniak, R., Cerezo, A.S.
Formato: JOUR
Materias:
Molecular structure
Nuclear magnetic resonance
Plants (botany)
Spectroscopy
Carrageenans
Iridaea undulosa
Polysaccharides
carrageenan
article
carbohydrate analysis
carbon nuclear magnetic resonance
chemical structure
nonhuman
phytochemistry
priority journal
proton nuclear magnetic resonance
structure analysis
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00086215_v261_n2_p317_Stortz
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:High-field 1H and 13C NMR spectroscopy has been used to characterize the fine structure of the cystocarpic and tetrasporic carrageenans from Iridaea undulosa. The proportion of different carrageenans from the κ-family in cystocarpic samples were calculated. In the 13C NMR spectra of the tetrasporic samples, twelve signals of approximately equal intensity were observed, indicating a nearly "perfect" λ-structure. © 1994.

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