The system of low-molecular-weight carrageenans and agaroids from the room-temperature-extracted fraction of Kappaphyeus alvarezii
The room-temperature-extracted fraction from the red seaweed Kappaphycus alvarezii consists mainly of low-molecular-weight carrageenans, with structural dispersion around a basic κ-pattern. This dispersion results from: (a) low percentages of 3,6-anhydrogalactose and the presence of precursor units;...
Guardado en:
| Autores principales: | , , |
|---|---|
| Publicado: |
2000
|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00086215_v325_n4_p287_Estevez http://hdl.handle.net/20.500.12110/paper_00086215_v325_n4_p287_Estevez |
| Aporte de: |
| id |
paper:paper_00086215_v325_n4_p287_Estevez |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_00086215_v325_n4_p287_Estevez2023-06-08T14:32:38Z The system of low-molecular-weight carrageenans and agaroids from the room-temperature-extracted fraction of Kappaphyeus alvarezii Estevez, Jose Manuel Ciancia, Marina Cerezo, Alberto Saúl Carrageenans Kappaphycus alvarezii L-Galactose Low molecular weight Room-temperature extract Seaweed polysaccharides Structure determination carrageenan galactose monosaccharide potassium chloride water xylose article chemistry gas chromatography infrared spectroscopy ion exchange chromatography isolation and purification mass fragmentography metabolism nuclear magnetic resonance spectroscopy seaweed temperature Carrageenan Chromatography, Gas Chromatography, Ion Exchange Galactose Gas Chromatography-Mass Spectrometry Magnetic Resonance Spectroscopy Monosaccharides Potassium Chloride Seaweed Spectroscopy, Fourier Transform Infrared Temperature Water Xylose The room-temperature-extracted fraction from the red seaweed Kappaphycus alvarezii consists mainly of low-molecular-weight carrageenans, with structural dispersion around a basic κ-pattern. This dispersion results from: (a) low percentages of 3,6-anhydrogalactose and the presence of precursor units; (b) important quantities of 6-Ο-methyl β-D-galactose (4-sulfate) residues; (c) significant amounts of i-repeating structure, and (d) small amounts of non-sulfated and disulfated β-D-galactose residues. Significant quantities of β-L-galactose units suggest the presence of agaroids, as it has been reported in several other carrageenophytes. © 2000 Elsevier Science Ltd. All rights reserved. Fil:Estevez, J.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ciancia, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cerezo, A.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2000 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00086215_v325_n4_p287_Estevez http://hdl.handle.net/20.500.12110/paper_00086215_v325_n4_p287_Estevez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Carrageenans Kappaphycus alvarezii L-Galactose Low molecular weight Room-temperature extract Seaweed polysaccharides Structure determination carrageenan galactose monosaccharide potassium chloride water xylose article chemistry gas chromatography infrared spectroscopy ion exchange chromatography isolation and purification mass fragmentography metabolism nuclear magnetic resonance spectroscopy seaweed temperature Carrageenan Chromatography, Gas Chromatography, Ion Exchange Galactose Gas Chromatography-Mass Spectrometry Magnetic Resonance Spectroscopy Monosaccharides Potassium Chloride Seaweed Spectroscopy, Fourier Transform Infrared Temperature Water Xylose |
| spellingShingle |
Carrageenans Kappaphycus alvarezii L-Galactose Low molecular weight Room-temperature extract Seaweed polysaccharides Structure determination carrageenan galactose monosaccharide potassium chloride water xylose article chemistry gas chromatography infrared spectroscopy ion exchange chromatography isolation and purification mass fragmentography metabolism nuclear magnetic resonance spectroscopy seaweed temperature Carrageenan Chromatography, Gas Chromatography, Ion Exchange Galactose Gas Chromatography-Mass Spectrometry Magnetic Resonance Spectroscopy Monosaccharides Potassium Chloride Seaweed Spectroscopy, Fourier Transform Infrared Temperature Water Xylose Estevez, Jose Manuel Ciancia, Marina Cerezo, Alberto Saúl The system of low-molecular-weight carrageenans and agaroids from the room-temperature-extracted fraction of Kappaphyeus alvarezii |
| topic_facet |
Carrageenans Kappaphycus alvarezii L-Galactose Low molecular weight Room-temperature extract Seaweed polysaccharides Structure determination carrageenan galactose monosaccharide potassium chloride water xylose article chemistry gas chromatography infrared spectroscopy ion exchange chromatography isolation and purification mass fragmentography metabolism nuclear magnetic resonance spectroscopy seaweed temperature Carrageenan Chromatography, Gas Chromatography, Ion Exchange Galactose Gas Chromatography-Mass Spectrometry Magnetic Resonance Spectroscopy Monosaccharides Potassium Chloride Seaweed Spectroscopy, Fourier Transform Infrared Temperature Water Xylose |
| description |
The room-temperature-extracted fraction from the red seaweed Kappaphycus alvarezii consists mainly of low-molecular-weight carrageenans, with structural dispersion around a basic κ-pattern. This dispersion results from: (a) low percentages of 3,6-anhydrogalactose and the presence of precursor units; (b) important quantities of 6-Ο-methyl β-D-galactose (4-sulfate) residues; (c) significant amounts of i-repeating structure, and (d) small amounts of non-sulfated and disulfated β-D-galactose residues. Significant quantities of β-L-galactose units suggest the presence of agaroids, as it has been reported in several other carrageenophytes. © 2000 Elsevier Science Ltd. All rights reserved. |
| author |
Estevez, Jose Manuel Ciancia, Marina Cerezo, Alberto Saúl |
| author_facet |
Estevez, Jose Manuel Ciancia, Marina Cerezo, Alberto Saúl |
| author_sort |
Estevez, Jose Manuel |
| title |
The system of low-molecular-weight carrageenans and agaroids from the room-temperature-extracted fraction of Kappaphyeus alvarezii |
| title_short |
The system of low-molecular-weight carrageenans and agaroids from the room-temperature-extracted fraction of Kappaphyeus alvarezii |
| title_full |
The system of low-molecular-weight carrageenans and agaroids from the room-temperature-extracted fraction of Kappaphyeus alvarezii |
| title_fullStr |
The system of low-molecular-weight carrageenans and agaroids from the room-temperature-extracted fraction of Kappaphyeus alvarezii |
| title_full_unstemmed |
The system of low-molecular-weight carrageenans and agaroids from the room-temperature-extracted fraction of Kappaphyeus alvarezii |
| title_sort |
system of low-molecular-weight carrageenans and agaroids from the room-temperature-extracted fraction of kappaphyeus alvarezii |
| publishDate |
2000 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00086215_v325_n4_p287_Estevez http://hdl.handle.net/20.500.12110/paper_00086215_v325_n4_p287_Estevez |
| work_keys_str_mv |
AT estevezjosemanuel thesystemoflowmolecularweightcarrageenansandagaroidsfromtheroomtemperatureextractedfractionofkappaphyeusalvarezii AT cianciamarina thesystemoflowmolecularweightcarrageenansandagaroidsfromtheroomtemperatureextractedfractionofkappaphyeusalvarezii AT cerezoalbertosaul thesystemoflowmolecularweightcarrageenansandagaroidsfromtheroomtemperatureextractedfractionofkappaphyeusalvarezii AT estevezjosemanuel systemoflowmolecularweightcarrageenansandagaroidsfromtheroomtemperatureextractedfractionofkappaphyeusalvarezii AT cianciamarina systemoflowmolecularweightcarrageenansandagaroidsfromtheroomtemperatureextractedfractionofkappaphyeusalvarezii AT cerezoalbertosaul systemoflowmolecularweightcarrageenansandagaroidsfromtheroomtemperatureextractedfractionofkappaphyeusalvarezii |
| _version_ |
1768543401070821376 |