Structure of an arabinoxylan from the bark of Persea macrantha (Lauraceae)

Channe Gowda, J. Pape Gowda, Yernool V. Anjaneyalu

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

An arabinoxylan isolated from the delignified bark of Persea macrantha is composed of l-arabinose (73%) and d-xylose (27%). Partial hydrolysis gave 3-O-d-xylopyranosyl-l-arabinose, 4-O-d-xylopyranosyl-d-xylose, O-d-xylopyranosyl-(1→4)-O-d-xylopyranosyl-(1→4)-d-xylose, and O-d-xylopyranosyl-(1→4)-O-d-xylopyranosyl-(1→4)-O-d-xylopyranosyl-(1→4)-d-xylose. Methylation analysis and periodate oxidation have been performed on the native and the degraded polysaccharides. It is suggested that the polysaccharide contains a backbone consisting of (1→4)-linked β-d-xylopyranosyl residues, each of which is substituted both at O-2 and O-3 with l-arabinofuranosyl and 3-O-d-xylopyranosyl-l-arabinofuranosyl groups. Some of the d-xylosyl residues of the latter side-chains are further substituted either at O-2 and O-4, or at O-3 and O-4, with l-arabinofuranosyl groups.

Original languageEnglish (US)
Pages (from-to)261-267
Number of pages7
JournalCarbohydrate Research
Volume108
Issue number2
DOIs
StatePublished - Oct 16 1982

Fingerprint

Lauraceae
Persea
Xylose
Arabinose
Polysaccharides
Methylation
Hydrolysis
Oxidation
arabinoxylan

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

Cite this

Gowda, Channe ; Gowda, J. Pape ; Anjaneyalu, Yernool V. / Structure of an arabinoxylan from the bark of Persea macrantha (Lauraceae). In: Carbohydrate Research. 1982 ; Vol. 108, No. 2. pp. 261-267.
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abstract = "An arabinoxylan isolated from the delignified bark of Persea macrantha is composed of l-arabinose (73{\%}) and d-xylose (27{\%}). Partial hydrolysis gave 3-O-d-xylopyranosyl-l-arabinose, 4-O-d-xylopyranosyl-d-xylose, O-d-xylopyranosyl-(1→4)-O-d-xylopyranosyl-(1→4)-d-xylose, and O-d-xylopyranosyl-(1→4)-O-d-xylopyranosyl-(1→4)-O-d-xylopyranosyl-(1→4)-d-xylose. Methylation analysis and periodate oxidation have been performed on the native and the degraded polysaccharides. It is suggested that the polysaccharide contains a backbone consisting of (1→4)-linked β-d-xylopyranosyl residues, each of which is substituted both at O-2 and O-3 with l-arabinofuranosyl and 3-O-d-xylopyranosyl-l-arabinofuranosyl groups. Some of the d-xylosyl residues of the latter side-chains are further substituted either at O-2 and O-4, or at O-3 and O-4, with l-arabinofuranosyl groups.",
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Structure of an arabinoxylan from the bark of Persea macrantha (Lauraceae). / Gowda, Channe; Gowda, J. Pape; Anjaneyalu, Yernool V.

In: Carbohydrate Research, Vol. 108, No. 2, 16.10.1982, p. 261-267.

Research output: Contribution to journalArticle

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N2 - An arabinoxylan isolated from the delignified bark of Persea macrantha is composed of l-arabinose (73%) and d-xylose (27%). Partial hydrolysis gave 3-O-d-xylopyranosyl-l-arabinose, 4-O-d-xylopyranosyl-d-xylose, O-d-xylopyranosyl-(1→4)-O-d-xylopyranosyl-(1→4)-d-xylose, and O-d-xylopyranosyl-(1→4)-O-d-xylopyranosyl-(1→4)-O-d-xylopyranosyl-(1→4)-d-xylose. Methylation analysis and periodate oxidation have been performed on the native and the degraded polysaccharides. It is suggested that the polysaccharide contains a backbone consisting of (1→4)-linked β-d-xylopyranosyl residues, each of which is substituted both at O-2 and O-3 with l-arabinofuranosyl and 3-O-d-xylopyranosyl-l-arabinofuranosyl groups. Some of the d-xylosyl residues of the latter side-chains are further substituted either at O-2 and O-4, or at O-3 and O-4, with l-arabinofuranosyl groups.

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