Natural antifungal compounds from the peels of Ipomoea batatas Lam

  title={Natural antifungal compounds from the peels of Ipomoea batatas Lam},
  author={Abimbola Peter Oluyori and Arun Kumar Shaw and Rastogi Preeti and Sam Reddy and Olubunmi Atolani and Gabriel Ademola Olatunji and Oluwatoyin Adenike Fabiyi},
  journal={Natural Product Research},
  pages={2125 - 2129}
Abstract Three antifungal compounds have been isolated for the first time from the peels of Ipomoea batatas Lam. Their structures were established on the basis of 1D and 2D NMR spectra data as well as ESI-MS and IR analysis. Urs-13(18)-ene-3β-yl acetate was found to possess a weak activity against Sporothrix schenckii and Trichophyton metagrophytes fungi with an MIC value of 50 μg/mL each. Stigmasterol and 3-friedelanol were equally active against T. metagrophytes. 

Chromatographic Fractionation of An Ethanolic Extract of Peels from Ipomoea batatas Lam for Improved Anticancer Activity

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Eight compounds:β-amyrin acetate (1),friedelin (2),epifriedelanol (3),n-triacontanol (4),β-sitosterol(5),ethyl caffeate (6),scopoletin(7)and daucosterol (8) were isolated by silica gel chromatography


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Sesquiterpene-rich volatile constituents of Ipomoea obscura (L.) Ker-Gawl.

  • R. Joshi
  • Chemistry, Medicine
    Natural product research
  • 2015
The hydro-distilled essential oil from flowering aerial parts of Ipomoea obscura (L.) Ker-Gawl. (Convolvulaceae) was investigated by using gas chromatography equipped with a flame ionisation detector

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Antifungal activity of the amyrin derivatives and in vitro inhibition of Candida albicans adhesion to human epithelial cells

Aims:  The antifungal activity of amyrin pentacyclic triterpene and 15 synthetic derivatives was evaluated against Candida species. Additionally, inhibition of adhesion of Candida albicans to human

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An analysis of the polar extracts from sweet potato Ipomoea batatas led to the isolation of seven unknown aminoacyl sugars, which were elucidated on the basis of 1D, 2D NMR, and mass spectrometry data.

Batatins I and II, ester-type dimers of acylated pentasaccharides from the resin glycosides of sweet potato.

Through spectroscopic simulation of these complex oligosaccharides, the chemical shifts and coupling constants were deduced for the overlapped proton resonances with a non-first-order resolution.

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It is suggested that epifriedelanol (3) reduces cellular senescence in human primary cells and might be used to develop dietary supplements or cosmetics that modulate tissue aging or aging-associated diseases.

Natural anthocyanins from phytoresources and their chemical researches

After the introduction of new representative anthocyanins found in the past few years and the major relationships between structures and stability, modern separation and analysis technologies in related studies were summarised.


This comprehensive account provides information about stigmasterol, also known as Stigmasterin or Wulzen anti-stiffness factor, an unsaturated plant sterol present in various medicinal plants, utilized in a number of chemical processes which are designed to yield numerous synthetic and semi-synthetic compounds for pharmaceutical industry.