Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

[Standardization of the birch leaf]

A Carnat1, I Lacouture, D Fraisse

  • 1Laboratoire de Pharmacognosie et Phytothérapie, Faculté de Pharmacie, Clermont-Ferrand.

Annales Pharmaceutiques Francaises
|January 1, 1996
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Ultraviolet-absorbing compounds in milk are related to forage polyphenols.

Journal of dairy science·2010
Same author

One-dimensional modelling of the interactions between heavy rainfall-runoff in an urban area and flooding flows from sewer networks and rivers.

Water science and technology : a journal of the International Association on Water Pollution Research·2009
Same author

PCB, PCDD/F and PBDE levels and profiles in crustaceans from the coastal waters of Brittany and Normandy (France).

Marine pollution bulletin·2007
Same author

The aromatic and polyphenolic composition of Roman camomile tea.

Fitoterapia·2003
Same author

[Hydroxycinnamic acid levels of various batches from mugwort flowering tops].

Annales pharmaceutiques francaises·2003
Same author

Dioxins in adipose tissue of non-occupationally exposed persons in France: correlation with individual food exposure.

Chemosphere·2001

Betula pendula and Betula pubescens leaves show similar flavonoid profiles. Flavonoid content varies with leaf age, with higher levels in young leaves, informing potential pharmacopoeial revisions.

Area of Science:

  • Phytochemistry
  • Pharmacognosy
  • Botany

Background:

  • Birch leaves (Betula species) are used in traditional medicine.
  • Understanding their chemical composition, particularly flavonoids, is crucial for quality control and therapeutic application.

Purpose of the Study:

  • To compare the flavonoid patterns in dried leaves of Betula pendula and Betula pubescens.
  • To investigate the influence of leaf age on flavonoid content in Betula pendula.
  • To propose revised pharmacopoeial specifications for Betulae folium based on flavonoid analysis.

Main Methods:

  • Analysis of flavonoid profiles in 17 batches of Betula pendula and Betula pubescens leaves.
  • Quantification of key flavonoid compounds including hyperoside, avicularin, and quercitrin.

Related Experiment Videos

  • Comparative study of commercial batches and assessment of leaf age effects.

    • Main Results:

    • Both Betula pendula and Betula pubescens exhibited similar flavonoid patterns.
    • Mean total flavonoid content was 3.29% in B. pendula and 2.77% in B. pubescens.
    • Flavonoid levels were significantly higher in young leaves compared to old leaves of B. pendula.

    Conclusions:

    • The flavonoid composition of Betula pendula and Betula pubescens leaves is comparable.
    • Leaf age is a critical factor influencing flavonoid content in Betula species.
    • The findings support the revision of pharmacopoeial standards for Betulae folium to ensure consistent quality.