Abstract
The yield, IR spectra, 3,6-anhydro-d-galactose and sulfate content are given for several species of putative carrageenophytes from different sites on the Brazilian coast. Kappa carrageenan was found in Hypnea musciformis and Gigartina spp. ; all the other species tested yield an iota type. The lowest carrageenan yield was found in Cryptonemia crenulata (5%), and the highest in Gigartina sp. (72%); 3,6-anhydrogalactose content was highest in Hypnea musciformis and Gigartina spp., whereas sulfate was lowest in H. musciformis. Slight variations in the yield of carrageenans were found during the period of observation (March 1988 to May 1989), but no clear pattern could be recognized. No significant variation was observed in plants from different collection sites.
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Saito, R.M., de Oliveira, E.C. Chemical screening of Brazilian marine algae producing carrageenans. Hydrobiologia 204, 585–588 (1990). https://doi.org/10.1007/BF00040291
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DOI: https://doi.org/10.1007/BF00040291