JOURNAL 2904
Records of Natural Products
VOLUME & ISSUE
Available Online: November 09,2023
Available Online: November 09,2023
PAGES
p.1 - 5
p.1 - 5
DOI ADDRESS
http://doi.org/10.25135/rnp.423.2309.2904 (DOI number will be activated after the manuscript has been available in an issue.)
http://doi.org/10.25135/rnp.423.2309.2904 (DOI number will be activated after the manuscript has been available in an issue.)
STATISTICS
Viewed 247 times.
Viewed 247 times.
GRAPHICAL ABSTRACT

ABSTRACT
Citrus hystrix has been widely used as beverages, traditional condiments and folk medicines. In this study, 5,6-dihydroxypyranoflavone (1), a new flavonoid with an oxidized prenyl group, and three known phenols (2-4), were separated from the leaves of this plant. Their structures were elucidated using comprehensive spectroscopic data including 1D NMR, 2D NMR and mass spectral analysis. Additionally, 5,6-dihydroxypyranoflavone (1) exhibited moderate antioxidant effect against DPPH and ABTS free radicals with IC50 values of 18.28 ± 0.36 and 12.46 ± 0.82 μM, respectively. The results suggested that the dietary plant Citrus hystrix could be considered as a potential source of natural antioxidants.
KEYWORDS- Citrus hystrix
- dietary plant
- flavonoid
- antioxidant effect