Abstract
A dihydrostilbene derivative compound, namely 3,3-dihydroxy-5-methoxybibenzyl or batatasin III (1) was isolated from the yam peel of Dioscorea alata L. The structure of compound 1 has been elucidated based on spectroscopy UV-Vis, 1D and 2D NMR Analysis. The IC50 of DPPH radical scavenging of this compound (206.82 μg/mL) lower than ethyl acetate extract (109.99 μg/mL), but higher than methanol extract (893.59 μg/mL).
Highlights
The genus Dioscorea (Dioscoreceae) comprises more than 600 species that are widely distributed in tropical and subtropical region such as Indonesia
Wild yam or Dioscorea alata occur in several part of Indonesia and the plants is commonly known as Uwi tuban
In continuation of the research of the phenolic compounds in this medicinal plant, our research group already reported from two species: D. esculenta L.successfully isolated two phenanthrene derivatives namely confusarin and nudol [7], methyl-3,4-dihydroxybenzoate and 9,10dihydrophenanthrene from D. alata L.[8]
Summary
The genus Dioscorea (Dioscoreceae) comprises more than 600 species that are widely distributed in tropical and subtropical region such as Indonesia. SEMIRATA- International Conference on Science and Technology 2018 W Agustina1, A N Kristanti2, Y Takaya3, E Fitriana1 and N S Aminah2*
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