These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Contributions to the phytochemical study of Bidens tripartitae herba from Romania. I. Tannins.
    Author: Zagnat M, Cheptea C, Spac AF.
    Journal: Rev Med Chir Soc Med Nat Iasi; 2013; 117(1):275-80. PubMed ID: 24505928.
    Abstract:
    AIM: To analyze qualitatively and quantitatively tannins in the native plant, collected during the whole vegetation period from different areas of the country, and in its different organs (flower, stem, leaf). MATERIAL AND METHODS: For quantitative analysis, the plant product was extracted by repeated maceration (3 days) with 80% methanol. Proanthocyanidins in the extract were quantified by spectrophotometric methods. RESULTS: condensed tannins were present while hydrolyzed tannins were absent. Chromatographic analysis showed that tannins spectrum is similar in all plant organs and in plants collected at different times throughout the vegetation period. The differences are only quantitative. The maximum amount of tannins was found during the flowering stage (10.32%). CONCLUSIONS: In terms of tannin content, flowering is the best time to collect. However, collection throughout the whole vegetation period is acceptable.
    [Abstract] [Full Text] [Related] [New Search]