A novel flavone glycoside from the stem of Bauhinia purpurea

Yadava, R. N.; Tripathi, Poonam

doi:10.1016/s0367-326x(99)00114-8

Cited by 42 publications

(26 citation statements)

References 2 publications

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“…Apesar da atividade hipoglicemiante desta espécie ter sido destacada há muito tempo [3][4][5] , poucos estudos foram realizados seja com respeito às suas atividades ou fitoquímica. O gênero Bauhinia é caracterizado pelo acúmulo de flavonóides livres e glicosilados [6][7][8][9][10] sendo que de B. forficata são relatados na literatura a presença de β-sitosterol and kanferol-3,7-diramnosídeo 6 . O presente trabalho registra os resultados do estudo fitoquímico das folhas e flores de B. forficata, descrevendo o isolamento e a identificação de kanferol (1) e de cinco flavonóides glicosilados (2-6) contendo os flavonóis kanferol e quercetina como agliconas.…”

Section: Introductionunclassified

Flavonóides glicosilados das folhas e flores de Bauhinia forficata (Leguminosae)

Pizzolatti¹,

Cunha²,

Szpoganicz³

et al. 2003

Quím. Nova

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Section: Introductionunclassified

Flavonóides glicosilados das folhas e flores de Bauhinia forficata (Leguminosae)

Pizzolatti¹,

Cunha²,

Szpoganicz³

et al. 2003

Quím. Nova

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“…A chemical survey of the genus afforded mainly glycosil flavonoids (Yadava & Tripathi, 2000), other phenolic derivatives (Reddy et al, 2003) and cyanoglycosides (Fort et al, 2001). The 6,7-dihydroxycoumarin-β-D-glucopyranoside or esculin (coumarin), a main constituent present in the ethanolic extract, aqueous fraction of B. platypetala leaves (Table 1), is well known for its antioxidant activities (Kaneko et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Chemical composition and anxiolytic-like effects of the Bauhinia platypetala

Santos¹,

Lima²,

Cerqueira³

et al. 2012

Rev. bras. farmacogn.

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Abstract:The pantropical genus Bauhinia, Fabaceae, known popularly as cow's foot, is widely used in folk medicine as antidiabetic. Behavioral effects of the ethanolic extract and ethereal, aqueous and ethyl acetate fractions from B. platypetala Benth. ex Hemsl. leaves were studied in male Swiss mice. The ethanolic extract and fractions were administered intraperitoneally and its effects on spontaneous motor activity (total motility, locomotion, rearing and grooming behavior) were monitored. Anxiolytic-like properties were studied in the elevated plus-maze test and the possible antidepressantlike actions were evaluated in the forced swimming test. The results revealed that only the highest dose of the ethereal fraction (50 mg/kg, i.p.) caused a signifi cant decrease in total motility, locomotion and rearing. Sole dose injected (50 mg/kg) of ethanolic extract and ethereal fractions increased the exploration of the elevated plus-maze open arms in a similar way to that of diazepam (2 mg/kg, i.p.). In the forced swimming test, the ethanolic extract and their fractions (12.5, 25 or 50 mg/kg) was not as effective as paroxetine (10 or 20 mg/kg, i.p.) and imipramine (25 or 50 mg/kg, i.p.) in reducing immobility. These results suggest that some of the components of the ethanolic extract and of the ethereal fraction from B. platypetala, such as p-cymene, phytol, D-lactic acid, hexadecanoic acid, among others, may have anxiolytic-like properties, which deserve further investigation. Furthermore, the results obtained indicate that ethanolic extract from B. platypetala and their fractions do not present antidepressive properties. However, these properties cannot be related to the chemical constituents identifi ed in this specie.

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“…For instance, Bauhinia purpurea has shown antidiabetic, analgesic, anti-inflammatory, antipyretic, antimalarial, antifungal, cytotoxic and thyroid hormone-stimulating activities as well as free radical scavenging [6][7][8][9][10][11][12][13][14] . Phytochemical studies with Bauhinia purpurea had related the presence of several molecules which could be potential corrosion inhibitors, such as flavonoids (rutin 7 , isoquercetrin 7 , 5,6-dihydroxy-7-methoxyflavone 6-O-β-D-xylopyranoside 15 , kaempferol 16 , quercetin 16 , isohammetin 16 , strobopinin 6 , demothoxymatteucinol 6 , bauhinoxepin C-J 6 and bauhinistatins1-4 1 ) in addition to phytosterols and fatty acids 17 . The phenolic compound extraction is enhanced using methanol solvent 18,19 .…”

Section: Introductionmentioning

confidence: 99%

The inhibitory action of Bauhinia purpurea extracts on the corrosion of carbon steel in sulfuric acid medium

et al. 2016

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The inhibitory effect of Bauhinia purpurea (Fabaceae) extract was studied in the corrosion of carbon steel in 1.0 mol•L -1 sulfuric acid solution. This plant was collected from the Brazilian rainforest. The carbon steel protection was observed by varying the extract concentration from 50 to 500 mg•L -1 . Polarization curves revealed that this extract acted as an adsorption inhibitor decreasing both anodic and cathodic density currents. Weight loss measurements showed that the extract remains stable for at least 72 hours. The adsorption process of this extract obeyed the Langmuir adsorption isotherm. Lastly, Arrhenius plot suggested the physical adsorption of the extract.

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A novel flavone glycoside from the stem of Bauhinia purpurea

Cited by 42 publications

References 2 publications

Flavonóides glicosilados das folhas e flores de Bauhinia forficata (Leguminosae)

Flavonóides glicosilados das folhas e flores de Bauhinia forficata (Leguminosae)

Chemical composition and anxiolytic-like effects of the Bauhinia platypetala

The inhibitory action of Bauhinia purpurea extracts on the corrosion of carbon steel in sulfuric acid medium

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