A phytochemical investigation on the roots of Dracaena marginata yielded nine steroidal saponins. Six of the saponins were isolated as three pairs of 22-hydroxy furostanol saponins and their 22-methoxy derivatives including two new minors identified as 26-O-β-D-glucopyranosyl-22α-hydroxy-(25R)-furost-5en-3β, 26diol -3O-αLrhamnopyranosyl-(1→3)-[α-L-rhamnopyranosyl -(1→4)]–β–D -glucopyranoside an...

Saponins are secondary metabolites with high molecular weight. They present in a wide range of plant species and are distributed throughout the bark, leaves, stems, roots and even flowers. Saponins are bitter in taste and in recent years, they have received considerable attention because of their various biological activities including hepatoprotective, anti-ulcer, anti-tumor, antimicrobial, ad...

As one of the most commonly used medicinal plants, ginseng has been an attractive model herb for study. A wide range of analytical methods has been used to characterize its constituents. However, less effort has been devoted to the rare ginseng saponins, especially their isomers and sugar linkages. In this study, we used segmental monitoring and diagnostic ion filtering to characterize ginseng ...

Saponins, molecules classified as triterpenic or steroidal glycosides, are metabolites distributed in all the plant kingdom that can be used for the production of foods, cosmetics, and pharmaceuticals, as well as in soil bioremediation. Saponins are normally extracted from natural resources with water, ethanol and/or methanol, and then concentrated by liquid-liquid partitioning with n-butanol. ...

Glucosinolates are plant secondary metabolites used in plant defense. For insects specialized on Brassicaceae, such as the diamondback moth, Plutella xylostella L. (Lepidoptera: Plutellidae), glucosinolates act as "fingerprints" that are essential in host plant recognition. Some plants in the genus Barbarea (Brassicaceae) contain, besides glucosinolates, saponins that act as feeding deterrents ...

The insecticidal activity of aqueous extract of Panax notoginseng (Burkill) F. H. Chen (Araliaceae) flower buds against Aedes albopictus Skuse (Diptera Culicidae) larvae and pupae was tested and quali-quantitative profile of principal saponins of the active tested aqueous extract were investigated by LC-ESI/MS/MS. P. notoginseng aqueous extract (35% of saponins/dried plant extract) showed the h...

Objective: To objective of this work was to perform phytochemical qualitative and quantitative analyzes of the main secondary metabolites in the root of Berberis microphylla. Methods: The extracts of B. microphylla root were tested through phytochemical screening and the quantification of the most important constituents was carried out using spectrophotometric and gravimetric techniques. Result...

Four new dammarane-type triterpenoid saponins, chikusetsusaponin FT(1) (1), chikusetsusaponin FT(2) (2), chikusetsusaponin FT(3) (3), chikusetsusaponin FT(4) (4), and six known triterpenoid saponins, chikusetsusaponin FK(4) (8), chikusetsusaponin FK(5) (9), chikusetsusaponin FK(2) (10), chikusetsusaponin FK(3) (11), chikusetsusaponin LN(4) (12), and chikusetsusaponin IVa (14), were isolated fro...

Evidence for the microbial degradation of plant saponins is limited to few investigations. Rothrock et al. (1955) have reported that the saponins from Dioscorea tubers can be cleaved into their component parts, diosgenin and the sugar moiety, by Aspergillus terreus. Among the bacteria, yeast, and molds examined, only strains of Penicillium, Aspergillus, and Fusarium were capable of hydrolyzing ...