Investigation of Erythrina Spp. IX. Chemical Constituents of Erythrina stricta Bark

Inhibition of MAO A and B by some plant-derived alkaloids, phenols and anthraquinones

“…The phytochemicals (seven alkaloids piperine (DwumaBadu et al, 1976), strychnine (Akopian and Shcherbina, 1970), brucine (Yang and Yan, 1993), stachydrine (Singh et al, 1975), tetrandrine (Lin et al, 1993), frangchinoline and sinomenine (Yamasaki, 1976), four phenols paeonol (Di et al, 1998), honokiol, magnolol and eugenol (Zheng et al, 1992), and six anthraquinones emodin (Huang et al, 1991), rhein, chrysorphanol, aloe-emodin, physcion (Min et al, 1998;Agarwal et al, 2000) and 1,8-dihydroxyanthraquinone (Eckardt et al, 1985) were provided by the National Institute for Control of Pharmaceutical and Biological Products, Beijing, China. And the purity of each product was ascertained by TLC and HPLC analyses.…”

Erythrina variegata

“…The alkaloid isolated had the properties identical with those of hypaphorine. From seeds Plate 4 Close view of fl owers (Chung GF) erythraline and 'free' and 'liberated' erysovine were isolated (Singh and Chawla 1970 ). The fatty acid composition of the seed oil was also determined.…”

“…The petroleum ether bark extract was found to compose of wax alcohols and wax acids, alkyl ferulates, alkyl phenolates, stigmasterol, sitosterol, campesterol and citrostadienol/24-methylenelophenol (Singh et al 1975 ). The ethanol bark extract yielded chloroform-soluble and water-soluble bases, identifi ed as erysovine and stachydrine, respectively.…”

bis-Sigmodiol: a new prenylflavanone dimer fromErythrina sigmoideaHua (Fabaceae) of Nigeria

“…More than 340 secondary metabolites have been isolated from various Erythrina species. These include flavonones [4], isoflavonones [5], isoflavones [6], isoflavans [7], isoflavanones [8], esters [9], phenolics [10], coumarins [11], triterpenes [12], triterpenoidal saponins [13], alkaloids [14], proteins [15], and pterocarpans [16]. About 30 of these secondary metabolites are reported to have antimicrobial [17][18][19], antifungal [20,21], anti-inflammatory [22], and cytotoxic [23] properties; they also act as phytoalexins [24] and phospholiphase A 2 inhibitors [25].…”