Phytochemical Constituents Isolated from the Stem Bark of Bauhinia monandra

Abstract

The methanolic extract from stem bark of Bauhinia monandra, a medicinal plant employed in folk medicine, yielded by column chromatography lup-20(29)-en-3β,24-diol (1) and methyl galloate (2) along with β-sitosterol (3). These known phytoconstituents are being reported for the first time from this plant and their structures were established by NMR and MS spectral studies and by comparison with their literature data. Furthermore, lup-20(29)-en-3β,24-diol (1), a minor constituent, was isolated from this genus for the first time.

Evaluation of the phenolic content and in vitro antioxidant potential of Bauhinia monandra Kurz (Fabaceae)

“…Overall, the AcOEt extracts show a better reduction profile. And their richness in electron donating phytophenols and flavonoids are responsible for this (Argolo et al, 2004;Aderogba et al, 2006;Kumaran and Karunakaran, 2007;Alade et al, 2011;Ferrari et al, 2019). The reducing activity by NO inhibition and FRAP assay of B. strychnifolia leaf and stem extracts has been shown (Itharat et al, 2016;Praparatana et al, 2022).…”

“…Nevertheless, its values are lower than that of ascorbic acid (429407.783 ± 586.14 µg EFeSO 4 /g ES) taken as reference antioxidant.Overall, the AcOEt extracts show a better reduction profile. And their richness in electron donating phytophenols and flavonoids are responsible for this(Argolo et al, 2004;Aderogba et al, 2006;Kumaran and Karunakaran, 2007;Alade et al, 2011;Ferrari et al, 2019).…”

Bauhinia monandra Kurz Fabaceae

“…A mixture of this native species and other Bauhinia species are generally applied for the treatment of ailments besides diabetes (Holdsworth 1990;Da Silva et al 2000;Mendes et al 2006;Dapar et al 2020b). 29)-en-3β,24-diol, was isolated from the genus Bauhinia for the first time (Ferrari et al 2019). Many studies have revealed numerous pharmacological activities from different Bauhinia (Holdsworth 1990;Da Silva et al 2000), including the antioxidant potential of B. monandra (Nworie and Okorie 2018).…”