Epidermal and Phytochemical Studies in the Genus Boerhavia (Nyctaginaceae) in Nigeria

Fadeyi, M. O.; Adeoye, A. O.; Olowokudejo, J. D.

doi:10.3109/13880208909053960

Cited by 31 publications

(24 citation statements)

References 2 publications

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“…Phytochemical screening for major constituent (alkaloids, anthraquinones, coumarins, flavonoids, saponins, tannins, and terpenes) was undertaken using standard qualitative methods that has been described previously [19][20][21][22][23].…”

Section: Phytochemical Screeningmentioning

confidence: 99%

Antioxidant and antimicrobial properties of five medicinal Libyan plants extracts

Alghazeer¹,

El-Saltani²,

Saleh³

et al. 2012

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Five Libyan medicinal plants Thapsia garganica, Hammada scoparia, Euphorbia serrata, Hyoscyamus albus andRetama rateam were selected to evaluate their biological activities. Their total phenolic and flavanoid contents were assessed. The antioxidant activity was estimated using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) as free radical scavenger. Their crude extracts showed reducing potential proportional to their concentration. The correlation coefficient (R 2 ) between antioxidant activity and their total phenolics and flavanoids content is 0.77 and 0.98 respectively. Crude aqueous, methanolic as well as alkaloids extracts of the five plants were tested against a number of G +ve and G -ve sensitive resistant (e.g. MRSA) bacteria beside some fungal species. The aqueous extracts displayed weak antibacterial activity whereas methanolic extracts were profoundly effective against both G +ve and G -ve bacteria. The extracts of E. serrata and H. scoparia were highly effective against E. coli in particular. The alkaloid-rich extracts of H. albus and H. scoparia induced remarkable bacteriostatic and fungistatic effects. The bioactive ingredients of H. scoparia, E. serrata and R. rateam extracts are shown to be potential sources of natural antioxidant and antimicrobial ingredients favoring their possible use in industrial pharmacology on large scale.

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Section: Phytochemical Screeningmentioning

confidence: 99%

Antioxidant and antimicrobial properties of five medicinal Libyan plants extracts

Alghazeer¹,

El-Saltani²,

Saleh³

et al. 2012

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show abstract

“…Phytochemical screening for major constituents was undertaken using standard qualitative method as described by Odebiyi and Sofowora (1990) and Fadeyi et al (1987). Alkaloids, tannins, flavonoids, phenols, glycosides, saponins and volatile oils tests were conducted in all the fractions.…”

Section: Phytochemical Screeningmentioning

confidence: 99%

Phytochemical screening and antimicrobial activity of roots, stem-bark and leave extracts of Grewia mollis

Shagal¹,

Kubmarawa²,

Idi³

2012

Afr. J. Biotechnol.

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The roots, stem-bark and leaves of Grewia mollis which is used as herbal remedies for the cure of diarrhea and dysentery by natives in northern part of Nigeria were studied. The ethanol and water extracts of roots, stem-bark and leaves of the plant were subjected to phytochemical screening and antimicrobial activity against Salmonella typhii, Escherichia coli, Streptococcus sp. and Staphylococcus aureus. From the tests carried out, the result reveals the presence of saponins, flavonoids, glycosides, tannins, volatile oils, alkaloids and phenols in the leaves extract of the plant. The antimicrobial activity revealed that ethanol extracts of the plant parts were active against E. coli, S. aureus and Streptococcus sp. This supports the claims of efficacy reported in fork use of the plant in the treatment of disease caused by some pathogens and if further purified can be used as source of novel antibiotics.

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“…This has generated huge and renewed interest in ethnomedicine, ethnobotany and ethnopharmacology [1]. Extracts from these plant parts (especially the roots, stems, leaves and fruits) have been used extensively to treat infectious diseases and inflammatory and oxidative stress related conditions [2,3,4].…”

Section: Introductionmentioning

confidence: 99%

Comparative Studies of the Phytochemical, Antioxidant and Antimicrobial Properties of Cashew Leaf, Bark and Fruits Extracts

Onuh¹,

Idoko²,

Yusufu³

et al. 2017

AJFN

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Extracts of the leaf, stem bark and fruit of cashew plants were investigated to determine their phytochemical, antioxidant and antimicrobial properties. Cashew leaves, stem barks and fruits of the Brazilian Jumbo variety were processed, extracted and analyzed for their phytochemical, antioxidant and antimicrobial activities. The results showed that the phytochemical contents varied significantly between the sample extracts. Carotenoids content of cashew extracts are 88.86, 125.93 and 100.33 mg/g for the leaf, bark and fruit respectively. The stem bark extract showed significantly highest tannin content (2.01 mg/g) compared to the cashew fruit extract (1.56 mg/g) and cashew leaf extract (1.19 mg/g). Total phenolic content of the cashew plant parts varied significantly from 103.92 -983 .23 mg/g sample of the extract with the leaf extract having significantly lowest value while the fruit had the highest value. Cashew fruit extract exhibited significantly highest percentage DPPH scavenging activity at all concentrations. There was a positive correlation between the total phenolic content and antioxidant activities of cashew extracts suggesting that the phenolic content may directly influence the antioxidant activities. Extracts of cashew leaves and stem barks exhibited appreciable inhibition on all human pathogens screened compared to the fruit extract which was only active against salmonella typhi. Cashew extracts could therefore be used as a potential source of ingredients in the development of nutraceuticals and functional foods for the control, management and treatment of health disorders.

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Epidermal and Phytochemical Studies in the Genus Boerhavia (Nyctaginaceae) in Nigeria

Cited by 31 publications

References 2 publications

Antioxidant and antimicrobial properties of five medicinal Libyan plants extracts

Antioxidant and antimicrobial properties of five medicinal Libyan plants extracts

Phytochemical screening and antimicrobial activity of roots, stem-bark and leave extracts of Grewia mollis

Comparative Studies of the Phytochemical, Antioxidant and Antimicrobial Properties of Cashew Leaf, Bark and Fruits Extracts

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