Structural studies of a methyl galacturonosyl-methoxyxylan isolated from the stem of Lagenaria siceraria (Lau)
2007; Elsevier BV; Volume: 343; Issue: 2 Linguagem: Inglês
10.1016/j.carres.2007.09.013
ISSN1873-426X
AutoresKaushik Ghosh, Krishnendu Chandra, Sadhan K. Roy, Subhas Mondal, Debabrata Maiti, Debsankar Das, Arnab K. Ojha, Syed S. Islam,
Tópico(s)Carbohydrate Chemistry and Synthesis
ResumoA water-soluble polysaccharide was isolated from the aqueous extract of the stem of Lagenaria siceraria. The polysaccharide was found to be constituted of methyl d-galacturonate, 2-O-methyl-d-xylose, and d-xylose in a ratio of 1:1:1. On the basis of total acid hydrolysis, methylation analysis, periodate oxidation, NMR studies (1H, 13C, 2D-COSY, TOCSY, NOESY, HSQC, and HMBC), and MALDI-TOF MS analysis, the structure of the repeating unit of the polysaccharide is determined asDownload : Download full-size image
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