Studies on Root Bark of Mulberry Tree (III) -Constituents in the Root-bark of Morus Lhou Koizumi-

상백피(桑白皮)에 관한 연구(硏究) (III) -로상근피(魯桑根皮)의 성분(成分)-

The root-bark of the mulberry tree has been used as a medicine with antitussive, antiphlogistic, diuretic etc. in Korea. Among many kinds of mulberry trees, Morus Lhou has been widely cultivated in our country. In this experiment, three substances were obtained from the root-bark of Morus Lhou removed its cork layer by column chromatography of methanol extract. One of the substances was supposed as ${\alpha}$-amyrin acetate, another was alyceride, the other was confirmed as ${\beta}$-sistosterol by chemical and physical methods.