Abstract
Three new glucosylceramides (GluCers) named malusides I–III (1–3) were isolated from apple (cultivars of Malus domestica) pomace (fruit material remaining after juice extraction). An unusual oxo/hydroxy group pattern within the sphingadienine (d18:2) type sphingoid base was observed. All compounds contained the same α-hydroxylated fatty acid (h16:0) and a β-D-glucose moiety. Their structures were assigned on the basis of one- and two-dimensional (1D and 2D) nuclear magnetic resonance (NMR) spectroscopic analyses and mass spectrometry (MS) measurements.
Acknowledgments
M. Reisberg kindly acknowledges the support of the German Academic Exchange Service (DAAD) and of the German Federal Ministry for Education and Research (BMBF) for the project “Welcome to Africa”. The technical assistance by Anja Ehrlich, Manuela Woigk, and Annegret Laub is appreciated.
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©2018 Walter de Gruyter GmbH, Berlin/Boston
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Articles in the same Issue
- Frontmatter
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- Sesquiterpenes from the Saudi Red Sea: Litophyton arboreum with their cytotoxic and antimicrobial activities
- Biotechnology for bioenergy dedicated trees: meeting future energy demands
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- GC-MS characterization of n-hexane soluble fraction from dandelion (Taraxacum officinale Weber ex F.H. Wigg.) aerial parts and its antioxidant and antimicrobial properties
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- A new method for fast extraction and determination of chlorophylls in natural water
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