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<smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="country-region"><smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"> Sulphated galactans of marine red alga <i style="">Laurencia</i> spp. (Rhodomelaceae, Rhodophyta) from the west coast of India</smarttagtype></smarttagtype>

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Title Sulphated galactans of marine red alga Laurencia spp. (Rhodomelaceae, Rhodophyta) from the west coast of India
 
Creator Siddhanta, A. K.
Goswami, A. M.
Shanmugam, M.
Mody, K. H.
Ramavat, B. K.
Mairh, O. P.
 
Subject Laurencia
Rhodomelaceae
Rhodophyta
sulphated galactans
sulphated polysaccharides
 
Description 305-309
Sulphated galactans were isolated from four different species of Laurencia (L. papillosa, L. cruciata, L. pedicularioides, L. majuscula) from Indian waters. The crude sulphated polysaccharide (SPS) extracts contained ash (16-18%), moisture (14-18%), sugar (44-53%), sulphate (12-18%), protein (2-6%), 3,6-anhydrogalactose (14-27%) and uronic acid (4-9%). Crude extracts were chromatoghaphed on DEAE cellulose column and major fractions (0.5 M NaCl fraction) were characterized by GC-MS and 13C-NMR studies. Agarose-2-sulphate unit was identified in all the four polysaccharides samples. Laurencia papillosa, L. cruciata and L. pedicularioides SPS were found to be of similar type having 2-O-methy-3,6-anhydro-L-galactose and agaran 6ยข-sulphate (porphyran) units. Agarobiose and agarose-6-sulphate were detected in L. majuscula. Identification and chemical nature of these sulphated polysaccharides in the Laurencia spp. of Indian waters are of chemotaxonomic significance in view of their potential applications as agaroid.
 
Date 2009-05-27T07:43:05Z
2009-05-27T07:43:05Z
2002-12
 
Type Article
 
Identifier 0379-5136
http://hdl.handle.net/123456789/4354
 
Language en_US
 
Publisher CSIR
 
Source IJMS Vol.31(4) [December 2002]