The Open Conference Proceedings Journal
(Biological Sciences, Chemical Sciences, Physical Sciences, Medicine, Engineering & Technology)
(Discontinued)
ISSN: 2210-2892 ― Volume 10, 2020
Hopeanolin and other Resveratrol Oligomers from the Twigs of Shoreaacuminata: Antioxidant Propertiesand Chemotaxonomic Significance
The Open Conference Proceedings Journal, 2013, 4: 213
Norhayati Muhammad , Laily B. Din , Nazlina Ibrahim , Zuriati Zakaria , Wan A. Yaacob
Institute of Teacher Education, Ministry of Education, Blok 2200, JalanPersiaranApec, Cyber 6, 63000 Cyberjaya, Selangor D.E., Malaysia.
Electronic publication date 01/3/2013
[DOI: 10.2174/2210289201304010213 ]
Abstract:
(-)-Hopeanolin (1) [1] was isolated from the acetone extract of the twigs of Shoreaacuminata (Dipterocarpaceae), together with four resveratrol oligomers namely (-)-laevifonol [2], (-)-α-viniferin [3], (+)-vaticanol B [4] and (-)-hopeaphenol. The structure of these compounds were established based on spectroscopic evidence, including UV, IR, NMR and mass spectra. Compound 1 showed the potent ability to protect β-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 Shoreaand other genera of Dipterocarpaceae especially Hopea.