A new polysaccharide was extracted and purified from the roots of Angelica sinensis (Oliv) Diels (ASD). Its composition and linkage was elucidated by selective hydrolysis and GC/MS analysis of its derivatives. The...A new polysaccharide was extracted and purified from the roots of Angelica sinensis (Oliv) Diels (ASD). Its composition and linkage was elucidated by selective hydrolysis and GC/MS analysis of its derivatives. The polysaccharide was made of → 1) Fruf(2→and→6) Glcp (l→as its backbone with highly branched structure. To our best knowledge, this is the first report of the fructose residue in polysaccharides from the roots of the ASD.展开更多
The position and quantity of the hydroxyethyl groups in hydroxyethyl starch (HES) were studied by GC/MS and NMR. Quantitative characterization was carried out based on the results of both methods.
文摘A new polysaccharide was extracted and purified from the roots of Angelica sinensis (Oliv) Diels (ASD). Its composition and linkage was elucidated by selective hydrolysis and GC/MS analysis of its derivatives. The polysaccharide was made of → 1) Fruf(2→and→6) Glcp (l→as its backbone with highly branched structure. To our best knowledge, this is the first report of the fructose residue in polysaccharides from the roots of the ASD.
文摘The position and quantity of the hydroxyethyl groups in hydroxyethyl starch (HES) were studied by GC/MS and NMR. Quantitative characterization was carried out based on the results of both methods.