
TY  - JOUR
A1  - Brasch, DJ 
A1  - Chuah, C 
A1  - Melton, LD 
T1  - Formolysis studies on some polysaccharides from red seaweeds
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1984
VL  - 37
IS  - 7
SP  - 1539
EP  - 1544
KW  - 
UR  - https://doi.org/10.1071/CH9841539 
N2  - Formolysis of the permethylated agaroses from marine algae of the Pterocladia species and Gracilaria secundata, and of the permethylated porphyran from Porphyra columbina, resulted in a much higher recovery of 3,6-anhydro-2-O-methyl-L-galactosyl (relative to methylated D-galactosyl) derivatives than was obtained from conventional methylation analyses. The formolysis method, when followed by sulfuric acid hydrolyses, provided a novel method for the estimation of 3,6-anhydro-L-galactose residues in these agar-type polysaccharides. The 3,6-anhydro-2-O-methyl-L-galactose was determined by gas chromatography of its alditol acetate, and identified by g.l.c./m.s. 
ER  -

