Abstract
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.
Original language | English |
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Pages (from-to) | 287-299 |
Number of pages | 13 |
Journal | Carbohydrate Research |
Volume | 325 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Jan 2000 |
Externally published | Yes |
Keywords
- Carrageenans
- Kappaphycus alvarezii
- L-Galactose
- Low molecular weight
- Room-temperature extract
- Seaweed polysaccharides
- Structure determination
ASJC Scopus subject areas
- Analytical Chemistry
- Biochemistry
- Organic Chemistry