Comparative Methodology for Isolation of Flavonoid Glycosides fromClusia criuva Cambess

Abstract

The family Guttiferae belongs to the superorder Theiflorae, order Theales and according to Dahlgren's system of classification, it is equivalent to Hypericaceae (=Clusiaceae) [1]. This family consists of 49 genera encompassing over 1000 species of wide distribution in the tropics as shrubs and trees [2]. Plants of the genus Clusia have been used in folk medicine for the treatment of different kind of illness such as: febrifuge, anti rheumatic, purgative, for stomach problems and, in Brazil, they are very commonly used to heal wounds [3]. The key of any study of material from natural sources is the availability of suitable separation methods for the isolation of pure products [4–6]. Tentatives for separations using chomatography on solid support phases were not very efficients in the fractionation of Clusia criuva Cambess methanolic/ethyl acetate extracts. However, the use of counter‐current chromatography, an all liquid technique, showed advantages in comparison with the more traditional liquid‐solid separation methods and even with HPLC. In this sense it was possible to isolate flavonoid glycosides from ethyl acetate extract of Clusia criuva, in a very short operation time.

A new biphenyl from Clusia melchiorii and a new tocotrienol from C. obdeltifolia

“…Clusia species have been used as purgative, antirheumatic, for stomach problems and to heal wounds. The literature indicated that species of this genus produce polyprenylated benzophenones, 1,2 triterpenes and sterols, 3,4 flavonoid glycosides 5 and not so often tocotrienols, 6 biphenyls 7,8 and quinones. 9 Biphenyls in Clusiaceae are rare and the literature related the isolation of only eight of them in this family, two from Pentaphalangium solomonse, 10 five from C. paralicola 7,8 and one from Kielmeyera coriacea.…”