International Journal of Phytomedicine
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Screening of some plant materials used in South-West Algerian traditional medicine for their antibacterial activity
No full textThe initial introduction of new medicinal agents into the health care system sometimes, requires information beyond that is recorded in libraries relying instead, on reports available through traditions and healers within a society. This paper explored the antibacterial activity of aqueous and hydromethanolic extracts of nine folkloric medicinal plant from Bechar region (southwest Algeria) namely: A. nardus, A. schoenanthus, G. vulgaris, two species of H. scoparia green & red, P. laevigata, R. tripartita, T. gallica and T. nudatum, frequently used in the local traditional medicine. The antibacterial activity of different extracts were evaluated by using disc diffusion method agar and antibiotics susceptibility of ten selected microorganisms: seven reference strains, Bacillus cereus, Enterococcus faecalis, Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Salmonella typhi, and three clinically isolated strains, Escherichia coli (Urinary Tract Infection), Escherichia coli (Vaginal Infection) and Staphylococcus aureus (Skin Infection). The maximum antibacterial activity was recorded against the gram negative reference strains Pseudomonas aeruginosaand Escherichia coli with a maximum inhibition diameter of 15.6 ± 0.5 and 15.0 ± 1.4 mm respectively displayed by the aqueous extract of T. gallica, followed by the activity detected by the hydromethanolic extract of R. tripartita against the gram negative reference strain Pseudomonas aeruginosa (14.6±1.2 mm) and the aqueous and hydromethanolic extracts of R. tripartita against the gram negative reference strains Pseudomonas aeruginosa and Escherichia coli with a maximum inhibition diameter of 14.3 ± 2.0 and 14.3±0.5 mm, respectively. According to the present study, H. scoparia red, P. laevigata, R. tripartita, and T. gallicacan be served as broad spectrum antibiotic and used as a potent source of natural antibacterial agents by replacing commercially available synthetic drug that may have a large number of side effects
Phytochemical Screening and Biological Studies of Shilajit (Asphaltum)
No full textShilajit (asphaltum) is produced by the long term humification of dead plant material and organic vegetable matter by different micro-organisms and has great potential for the treatment of a variety of human conditions. This treatise reviews its origin, sources, chemical composition, biological and commercial importance. Phytochemical analysis was done by standard methods to evaluate different Shilajit (asphaltum) classes of compounds in different samples of shilajit which are responsible for their biological activity. Shilajit`s anti-microbial activity has been evaluated against four different bacterial strains viz., Escherichia coli, Psuedomonas aeuroginosa, Klebisella pneumonia and Staphylococcus aureus. Phytochemical analysis illustrated that shilajit contains terpenoids, cardiac glycosides, saponins and reducing sugars. Surprisingly, some classes of compounds are absent in shilajit viz., alkaloids, flavonoids, tannins and anthraquinones. . Shilajit showed no response towards halophytic bacteria and negligible activity was shown towards other strains of bacteria. Since anti-microbial activity is based on environmental factors its activity varied between locations
The Phytochemical Investigation and Biological Activities of Berberis Orthobotrys
No full textThe leaf extract of Berberis orthobotrys Bien. ex Aitch. (B.o.) afforded three compounds viz., β-sitosterol (1), sesamin (2) and 10-eicosanol (3) which were identified by spectroscopic methods including 1D and 2D NMR, GC-MS, IR and comparison of their spectral data with the published data. To the best of our knowledge these three compounds are reported here for the first time to be isolated from Berberis orthobotrys Bien. ex Aitch. (B.o.). Moreover the root extract exhibited good antilieshmanial activity and root and fruit extracts demonstrated minor antifungal activity against Fusarium solani
In vitro antioxidant activities of stem bark, leaves and callus extracts from Amoora rohituka
No full textThe present work examined the in vitro antioxidant activity of sequentially extracted, solvent extracts (Petroleum ether, chloroform and Methanol) of stem bark, leaves and callus from Amoora rohituka. The antioxidative capacity of the extracts were examined by using DPPH (1,1-diphenyl,2-picryl hydrazyl), ABTS (2,2’-azinobis-3-ethyl-benzothiozoline-6-sulphonic acid) and NOS (Nitric oxide scavenging) assays by using Gallic acid as standard control. Among the tested extracts, methanol extract of stem bark showed better antioxidative capacity. The total antioxidant activity was expressed as µg equivalent of Gallic acid per gram on dry weight basis. IC50 values for methanol extract of stem bark were 7.53 µg/ml; 34.92 µg/ml and 56.31 µg/ml in ABTS, DPPH and NOS assays respectively. Whereas, leaves and callus extracts showed moderate antioxidative properties
Triterpenoids with Cytotoxic Potential from the Leaves of Tridax procumbens L.
No full textThe anticancer activity of crude extracts of the leaves of Tridax procumbens, against two breast cancer cell lines-MCF-7 (benign) and MDA-MB-231 (metastatic) were investigated and an attempt was made to identify the anticancer principle. The extracts with methanol (TPM), ethanol (TPE) and chloroform (TPC) as solvents were screened for cytotoxicity by MTT assay against MCF-7 cells. The effective extract was further evaluated on MDA-MB-231 cells. Among the three extracts, TPC was effective at an IC50 value of 136 µg/ml and 129 µg/ml on MCF-7 and MDA-MB-231 cells respectively. Phytochemical analysis of the extract showed the presence of only steroids and terpenoids and their concentration was high (77.4% w/w). HPLC-MS of the chloroform soluble crude extract revealed a major peak (57.59% concentration) at a retention time of 4.78 min and MS data of this peak revealed presence of two fragments of molecular weight 475.80 and 701.80. The compounds were identified to be 3β, 9β-Dihydroxy-18α-oleanan-28-oic acid, a derivative of oleanolic acid and 3β, 28-Bis (cinnamoyl) betulin respectively, both from the triterpenoid family
Phytochemistry investigation and antioxidant activity of four edible Verbenaceae of Burkina Faso
Full text linkLantana rhodesiensis Moldenke, Lippia chevalieri Moldenke, Vitex diversifolia Bak and Vitex doniana Sweet are four species of Verbenaceae family widely used in traditional medicines in Burkina. The aim of this investigation was to study the chromatographic profile of phenols acids and that of the flavonoids as well as the antioxidants activities. Then, three types of extraction were made: acetonic (100%), decoction, ethanol-water(80/20 + 20/80); and fractions of ethanol-water which arehexane fraction (HF), ethyl acetate fraction (EAF), butanol fraction (BF) and aqueous fraction (AqF) of each species. These evaluations were supplemented by the quantification of the metal ions and the characterization by atomic absorption and HPLC-DAD methods of totals phenols acids and totals flavonoids.The whole of these proportioning was directed against the antioxidant activity through the anti-DPPH* (free radical scavenging activity), anti-TAC (total antioxidant capacity) and anti-IRP(iron reducing power).36 flavonoids on 41 were highlighted by the HPLC-DAD method. A derivative glycosylate of quercetin was detected in the V. diversifolia extracts. L. chevalieri presented the strongest value in terms of ions content with a 55.88 g/kg of calcium.In terms of antioxidant activity, L. rhodesiensis and L. chevalieri presented the best activities on total antioxidant activity and anti-DPPH, and iron reducing power respectively.It’s arise that decoction extract have the best’s activities and can justify the traditional uses
Curative effect of Plumbago indica root extract on thioacetamide induced hepatotoxicity in experimental rats
No full textThe root parts of Plumbago indica is widely used in the Indian Ayurvedic traditional system. The study was designed to evaluate the hepato curative activity Plumbago Indica (PLBM) methanolic root extracts at different doses (100 and 200 mg/kg bw) against thioacetamide induced liver damage in albino wistar rats. Liver damage was induced by administration of Thioacetamide (100 mg/kg bw) and was assessed by evaluating the activity of liver-function marker enzymes, antioxidant enzymes and lipid peroxidation. The liver sections were evaluated for histopathological changes. PLBM significantly (p ≤ 0.05) reversed the elevation of serum liver enzymes and hepatic levels of antioxidant markers. Histopathological findings also confirmed the curative effect of Plumbago Indica in a dose dependent manner. Thus this study scientifically rationale the use of Plumbago indica root as a promising drug against various liver disorders
Pharmacological Evaluation and Antifertility Activity of Aloe barbadensis Linn on female wistar rats.
No full textEthanolic and Aqueous extract of Leaf of Aloe barbadensiswas study, antifertility activity in proven fertile female Wistar Rats at the doses 500mg/kg b.wt./day for 30 days. Different parameters were studied in female wistar rats including effect of Reproductive outcome, Anti-implantation, Abortifacient study and Estrogenic and Anti-estrogenic activity, Phytochemical were observed.,Aloe vera Leaves shown positive test for Alkaloids, Steroid, Flavonoids, Terpene, Carbohydrates and Tannin. The extract of Aloe vera has anti-fertility effect the control rats showed good number of litters. Treatment of animal with different extracts, resulted a significant (P< 0.05, P< 0.01). antifertility activity (42.2% and 7.8%) was exhibited by AAV and WAV respectively. After 21 days of the extracts free period, the antifertility effect of the extracts was reversed. The extract treatments with AAV, an increase in the resorption index (%) by the extract is an indication of failure in the development of the embryo. The mean percentage of anti-implantation and percent resorption (abortifacient) were found to be highest for AAV-29.46%, WAV -12.17, and AAV-32.96%, WAV-7.78% respectively. The decrement in implantation caused by the extracts may be due to estrogenic or anti-estrogenic activity. However, along with standard AAVexhibiting more potent estrogenic and less potent anti-estrogenic when compared with standard.Clinical assessment of Female antifertility agents should include acceptability, safety and efficacy during and after the treatment. The present study was therefore carried out to evaluate the claimed antifertility effect of Aloe veraleaf using different aspects of reproductive physiology in female wistar rats
Oxidative stress and inflammation caused by n-Hexyl salicylate in mouse skin: the effectiveness of flavonoids
No full textReactive oxygen species (ROS) play a role in a numbered of degenerative conditions including psoriasis. Psoriasis is a chronic inflammatory disease who’s the etiopathogenesis is not yet completely understood, and therefore there is no standardized therapeutical approach. Flavonoids, recognized as potent antioxidants, are multifunctional molecules that can act as anti-inflammatory and antiproliferative agents through the modulation of multiple signaling pathways. The present study was designed to investigate the protective role of flavonoids [quercetin, chrysin, curcumin or Epigallocatechin 3-gallate (EGCG)] against n-Hexyl salicylate (HXS)-induced oxidative stress and inflammation in skin. Anti-oxidative and anti-inflammatory effect of flavonoids is quantified by histopathological assessment of skin, measuring the levels of lipid peroxidation and glutathione (GSH) in the skin, total number of inflammatory cells in peritoneal cavity, macrophage spreading index, and hematological and biochemical parameters. Topically applied of n-Hexyl salicylate caused significant increase in lipid peroxidation and decrease in GSH, which is accompanied by an increase total number of inflammatory cells in skin and peritoneal cavity, functional activity of macrophages, and enzymatic activity of ALP and AST. In contrast, topically applied 5 % preparation of flavonoids (quercetin, chrysin, curcumin or EGCG) with HXS effectively prevented these alterations and maintained the antioxidant status. The results suggest that flavonoid preparations can serve as a potent antioxidant and anti-inflammatory agents in psoriatic-like skin lesions, without toxic effects
Phytochemical screening and influence of extraction solvents on antioxidant and antimicrobial activities of Asparagus racemosus willd. Root
No full textThe bioactive components present in the Asparagus racemosus root are known to be responsible for its medicinal properties. However, the solvent extraction for these bioactive components had effect on bioactive activities. The present study was aimed to compare the effect of using different extraction solvents to extract the active components, antioxidant and antimicrobial activities from Asparagus racemosus root. Aqueous (DW and NW) extracts showed the efficiency of Asparagus racemosus root as antioxidant agent and broad spectrum antibacterial agent against both Gram-positive and Gram-negative. 95% Ethanolic extract had the most potential in the Ferric Reducing Antioxidant Power (FRAP) of 14.400±0.001 mg AAE/100g FW. But aqueous (DW and NW) extracts showed the lowest IC50 value of 4.716±0.002 - 4.757±0.001 mg/ml (IC50 ascorbic acid of 3.422±0.001 mg/ml). Moreover, Natural distilled water extract had also the bactericidal effect on P. aeruginasa ATCC 27853 and K. pneumoniae and E. faecalis DMST 4736 at 3-6 h intervals after incubation. These biological activity may be due partly to the presence of various phytochemical compounds; phenolics, flavonoids saponins, steroids, terpenoids and cardiac glycosides. It also suggests that Asparagus racemosus root was a potential candidate in antioxidant and antimicrobial agents. It was useful in applications with modern medicine in the therapy or prevention of disease as well as the adoption in commercial various health products in the future. In addition to the ethanol and water were suitable solvent to extract the substance, natural distilled water was also the alternative solvent for bioactive compounds extraction