抄録
Ursolic acid (I), n-hentriacontane (II), steryl ester (III), and β-sitosterol (IV) (contaminated with stigmasterol) were isolated from the whole herb of Plantago asiatica LINNÉ. A hydrolysis of III gave the mixture of β-sitosterol and stigmasterol as neutral components and palmitic acid as an acidic part. Therefore, the steryl ester (III) was found to be a mixture of β-sitosteryl palmitate and stigmasteryl palmitate.