Sutdy on Chemical Characteristics and Content of Polysaccharides from Bamboo Leaves of Different Species
Chemical characteristics of polysaccharides from leaves of 17 bamboo species were investigated by acid hydrolysis, derivatization and GC analysis, and the contents of bamboo polysaccharides in different species were studied by sulfuric acid-anthrone method. The results indicated that bamboo polysaccharides in different species were mainly composed of: xylose 43.9% - 65.5%, arabinose 11.7% - 19.6%, glucose 7.2% - 20.8%, galactose 7.7% - 14.1% and unknown monosaccharide 5.0% - 6.9%.The mass fraction of bamboo polysaccharides in different species was about 1.9% - 5.7%, Shibataea chinensis Nakai had the hightest mass fraction of polysaccharides with 5.7%,and the lowest was Pleioblastus chian f.hisauchii with 1.9%. The mass fraction of polysacchrides over 4% from 17 species of bamboo leaves were screened out as follows: S.chinensis, Indocalamus pedalis (Keng) Keng f., Bashania fargesii (E.G.Camus)Keng f.et Yi, Sasa argenteastriatus E.G.Camus,Phyllostachys edulis(Carr)A.et C.Riv,P.nidularia Munro,Sinobambusa tootsik(Sieb.)Makino and Neosinocalamus affinis(Rendle)Keng f. Because of the wide source and high quality, P.edulis(Carr)A.et C.Riv is the best raw material to extract polysaccharides.
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维普
