Tannins and related polyphenols from ten common Acacia species of India

  • Devi S
  • Prasad M
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Abstract

Tannins and related polyphenols from leaf, bark and pod samples of Acacia auriculiformis A. cunnex Benth., A. farnesiana Willd., A. leucophloea Willd., A. nilotica Willd., A. caesia W&A., A. ferruginea DC., A. torta Craib., A sundra DC., A. dealbata Link., and A. latronum Willd., have been estimated. Plant samples were collected from natural stands or from biomass plantations. Oven dried samples were extracted with water, 80% methanol, 70% acetone and 50% dimethyl sulfoxide and total phenolic compounds and tannins determined. In leaves the highest extractives were obtained from A. nilotica (40·2%), pods of A. auriculiformis (49·4%) with dimethyl sulfoxide. Total phenolic compounds and tannins of leaf samples were highest in A. nilotica (with acetone) the bark of A. farnesiana and the pods of A. nilotica (with dimethyl sulfoxide). Co-production of tannins, polyphenols, timber, gum and firewood from tree crops of Acacia are discussed. © 1991.

Author-supplied keywords

  • Acacia
  • India
  • biomass
  • co-production
  • multiuse
  • polyphenols
  • semi-arid region
  • tannins
  • tree crops

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Authors

  • S. Rama Devi

  • M. N.V. Prasad

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