Abstract
The 50% aqueous ethanol extracts of petals of Rosa gallica collected in Xinjiang province, China, exhibited potent inhibitory effects against α-amylase and α-glucosidase. As the active principles, seven hydrolysable tannins were isolated from this species for the first time and elucidated by NMR and ESI-TOF-MS analysis. Quantitative analysis by ultra-performance liquid chromatography demonstrated that the contents of these hydrolysable tannins were 3–5% of the dry weight of the petals, and the hydrolysable tannins must be related to the medicinal utilization of this species.
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Ochir, S., Nishizawa, M., Park, B.J. et al. Inhibitory effects of Rosa gallica on the digestive enzymes. J Nat Med 64, 275–280 (2010). https://doi.org/10.1007/s11418-010-0402-0
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DOI: https://doi.org/10.1007/s11418-010-0402-0