The Open Conference Proceedings Journal
(Biological Sciences, Chemical Sciences, Physical Sciences, Medicine, Engineering & Technology)
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ISSN: 2210-2892 ― Volume 10, 2020
Hopeanolin and other Resveratrol Oligomers from the Twigs of Shorea acuminata: Antioxidant Propertiaes and Chemotaxonomic Significance
The Open Conference Proceedings Journal, 2014, 5: 5-10
Norhayati Muhammad, Laily B. Din, Nazlina Ibrahim, Zuriati Zakaria, Wan A. Yaacob
Institute of Teacher Education, Ministry of Education, Block 2200, Jalan Persiaran Apec, Cyber 6, 63000 Cyberjaya, Selangor D.E., Malaysia.
Electronic publication date 30/5/2014
[DOI: 10.2174/2210289201405020005]
Abstract:
(-)-Hopeanolin (1) was isolated from the acetone extract of the twigs of Shorea acuminata (Dipterocarpaceae), together with four resveratrol oligomers namely (-)-laevifonol, (-)-α-viniferin, (-)-vaticanol B and (-)-hopeaphenol. The structures of these compounds were established based on spectroscopic evidence, including UV, IR, NMR and mass spectra. Compound 1 showed the potent ability to protect -carotene bleaching by linoleic acid and also to scavenge DPPH radicals with IC50s 0.18 and 6.58 mM respectively. The presence of compound 1 and the other four resveratrol oligomers in this species have great chemotaxonomic significance on the relationship between Shorea and other genera of Dipterocarpaceae especially Hopea.
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