Asian Journal
Of Traditional Medicines

Abstract: Phytochemical investigation of peanut testa (the seed coat of Arachis hypogaea L.) led to the isolation of eight phenolic compounds, including caffeic acid (1), methyl caffeate (2), ethyl caffeate (3), methyl protocatechuate (4), ethyl protocatechuate (5), butyl protocatechuate (6), (E)-p-hydroxycinnamic acid methyl ester (7), and resveratrol (8). The structures of the compounds were elucidated through spectroscopic data analysis and comparison with the previously reported literature. Among them, compounds 2, 3, 5, and 6 were obtained from Arachis hypogaea L. for the first time.

Key words: peanut testa, Arachis hypogaea L., separation and purification, phenolic compounds