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Related Experiment Videos

[Limonoids in Phellodendron amurense (Kihada)].

M Miyake1, N Inaba, S Ayano

  • 1Wakayama Agricultural Biological Research Institute, Japan.

Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan
|May 1, 1992
PubMed
Summary
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This study analyzed limonoids and their glucosides in Phellondendron amurense (Kihada) seeds and barks. Higher concentrations of limonin and obakunone were found in the barks compared to the seeds.

Area of Science:

  • Phytochemistry
  • Natural Product Chemistry
  • Pharmacognosy

Context:

  • Phellondendron amurense (Kihada) is a plant species with traditional medicinal uses.
  • Limonoids are a class of terpenoids found in various plant species.
  • Understanding the chemical composition of medicinal plants is crucial for their application.

Purpose:

  • To quantify and identify specific limonoids and their glucosides in the seeds and barks of Phellondendron amurense.
  • To compare the distribution and concentration of these compounds between the seeds and barks.

Summary:

  • Analysis of Phellondendron amurense revealed the presence of limonin, obakunone, limonin 17-beta-D-glucopyranoside, and obakunone 17-beta-D-glucopyranoside in the seeds.
  • The barks of Phellondendron amurense contained higher concentrations of limonin and obakunone, along with nomilin.

Related Experiment Videos

  • Specific concentrations were reported: seeds contained limonin (1950 ppm), obakunone (20 ppm), limonin 17-beta-D-glucopyranoside (820 ppm), and obakunone 17-beta-D-glucopyranoside (1360 ppm).
  • Barks contained limonin (6760 ppm), obakunone (1240 ppm), and nomilin (270 ppm).

    • Impact:

    • Provides quantitative data on the limonoid content of Phellondendron amurense, aiding in chemotaxonomic studies.
    • Highlights potential differences in bioactive compound profiles between plant parts, informing future research on pharmacological activities.
    • Contributes to the knowledge base of natural products chemistry and the characterization of medicinal plant constituents.