• Corpus ID: 10706430

Evaluation of Vegetable Tannin Contents and Polyphenols of some Indigenous and Exotic Woody Plant Species in Sudan

  title={Evaluation of Vegetable Tannin Contents and Polyphenols of some Indigenous and Exotic Woody Plant Species in Sudan},
  author={Mahdi Haroun and Palmina Khirstova and Tony Covington},
 Abstract— This paper presents a complementary analytical approach to characterize vegetable tanning materials in different woody plant species grown in Sudan. It is described the application of hide powder and combined techniques for determination of tannin content, and three specific chemical techniques to analyze the total phenolic content present in the species. The catechin number (Stiasny number) determined according to the method by Yazaki and Hillis, the iron alum test were usedto… 

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