Đặc điểm vi học và bước đầu khỏa sát thành phần hóa học thân cây Vọng cách (Premma serratifolia L., Verbenaceae) và lá Vông nem (Erythrina variegata L., Fabaceae)

Abstract

In this paper, pharmacognostic characteristics and chemical constituents of Premna serratifolia stems and Erythrina variegata leaves were investigated. Powder from Premna serratifolia stems was intitially found to be made up of 6 constituents: protective multicellular hair, heartwood, striped tissue, curly tissue, net tissue and dot tissue; Erythrina variegata powder comprised 4 constituents: aerocells, leafpiece of thin rectangular cells, hard cells and ring net. In addition, from the dichloromethane extract of Premna serratifolia stems, b-sitosterol compound was isolated by means of chemical column anlysis and spectrum methods. From the ethyl acetate extract of Erythrina variegata leaves, the presence of uracil compound was first found.