August 2010
Yield and water use efficiency of (Nigella sativa L.) under different irrigation treatments in a semi arid region in the West of Iran
Black cumin (Nigella sativa) is a medicinal plant with economic influences, especially in medicine production. The present study investigates the effects of different drip tape and furrow irrigation treatments with normal and deficit irrigations on water use efficiency, various plant parameters and oil content of N. sativa. For this purpose, an experiment with three replications was conducted on a completely...
August 2010
Growth response of Artemisia afra Jacq. to different pH levels in a closed hydroponics system
In this study the effect of varying levels of pH on the fresh and dried yield and chlorophyll content of Artemisia afra Jacq. was investigated. Five groups of plants received deionised water adjusted to a certain pH. The pH for the treatments were 4.5, 5.5, 6.5 (the control), 7.5, and 8.5. The fresh weight of the plants was highest for the pH treatment of 6.5, while the fresh weight of the 4.5, 5.5 and 7.5...
August 2010
Ethanolic leaf extract of Verbena hastata produces antidiarrhoeal and gastrointestinal motility slowing effects in albino rats
The antidiarrhoeal effects of ethanol leaf extract of Verbena hastata were evaluated in rat .Studies were investigated on castor oil- induced diarrhoea and gastrointestinal motility activity in rat. The extract (200 and 400 mg/kg) elicited a greater anti-motility than 5 mg/kg atropine (P < 0.05) and significantly (P < 0.05) protected rats against castor oil- induced diarrhoea. The frequency of...
August 2010
Quality assessment of Zaoren-an-shen granule by High-performance liquid chromatography (HPLC) fingerprinting and quantitative analysis
To control the quality of Zaoren-anshen granule (ZRG), a simple, reliable and reproducible method of High-Performance Liquid Chromatography equipped with Photodiode Array Detector (HPLC-DAD) was developed for fingerprint analysis and quantitative determination of three major classes of constituent’s namely phenolic acids, flavonoids and lignanoids. In the fingerprint analysis, nineteen peaks were selected as...
August 2010
Antimicrobial and antioxidant activities of medicinal plant species Ornithogalum alpigenum stapf. from Turkey
In this study, examination of the antioxidant and antimicrobial properties inherent in leaves and bulbs of geophytic, endemic species, Ornithogalum alpigenum Stapf. were carried out. Of all the extracts derived from the leaves and bulbs of this plant with various solvents, the acetone bulb extract was most inhibitory to the growth of with inhibition zone diameter of 12 ± 2 mm Candida...
August 2010
The foliar micromorphology of Arctotis arctotoides (L.f.) O. Hoffm
The foliar micromorphology of Arctotis arctotoides (L.f.) O. Hoffm. a medicinal plant in the Eastern Cape Province, South Africa was investigated using the Scanning Electron Microscope (SEM). The leaf surfaces of the plant were characterized by anisocytic stomata, glandular and non-glandular trichomes. The abaxial surfaces had more stomata and glandular trichomes than the adaxial surfaces of the leaf. Crystal...
August 2010
Zingiber officinale extract modulates g-rays-induced immunosuppression in mice
Zingiber officinale extract (ZOE), has been demonstrated to ameliorate the symptoms of radiation sickness and mortality induced by the gamma-irradiation in mice. In this study, we further investigated the immune-modulator potential of ZOE against the immunosuppression. Compared to mice irradiated alone, ZOE treatment significantly increased the spleen relative weight of the mice. Moreover, ZOE treatment enhanced...
August 2010
Antimicrobial activity of Spondias pinnata resin
The antimicrobial activity of resin of Spondias pinnata Kurz. (Anacardiaceae) was evaluated on Saccharomyces cerevisiae, Bacillus subtilis, Escherichia coli,Enterobacter sakazakii and Acinetobacter baumannii. Resin extracts were made in different organic solvents. In vitro antimicrobial activities of resin extracts were studied by disc diffusion method and macrodilution...
August 2010
Effect of deep sea water on the antioxidant activity and catechin content of green tea
Application of deep sea water (DSW) on preparation of green tea was evaluated. Green tea leaves were soaked in desalinated deep sea water (DSW) at 75°C for 10 min, and were evaluated for antioxidant activity and catechin content. DSW green tea showed higher antioxidant activity than green tea prepared with distilled water (DW). The 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activities and reducing power...
August 2010
Chemical composition and antioxidant activity of essential oil of pine cones of Pinus armandii from the Southwest region of China
The essential oil of an endemic species, Pinus armandii, gathered from China, was extracted by hydrodistillation and solid phase micro-extraction (SPME). The oils have been studied by GC and GC-MS. A total of 57 compounds have been identified in the pine cone oil extracted by hydrodistillation, the principal components being α-pinene (20.92%) and D-limonene (15.78%), β-pinene (4.91%)...
August 2010
Amelioration of carbon tetrachloride induced oxidative stress in kidney and lung tissues by ethanolic rhizome extract of Podophyllum hexandrum in Wistar rats
Antioxidant activity of 70% ethanolic extract of rhizome of Podophyllum hexandrum(Indian Mayapple) was investigated in rats by inducing kidney and lung injury with CCl4. 70% ethanolic extract exhibited significant antioxidant activity in the tissues by showing increased levels of proteins, reduced glutathione (GSH), superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT), and...
August 2010
Haematological profiles in male rats treated with methanolic extract or chromatographic fractions of Cnestis ferruginea (de Candolle)
The current dearth of information on the effect of Cnestis ferruginea on haematology necessitated the current study, which is to assess the effects of crude and chromatographic fractions of C. ferruginea on the blood values of male rats. Two experiments were carried out in this study. The first was to determine the effect of acute administration of varying doses (500, 1000 and 2000 mgkg-1bw) of...
August 2010
Antibacterial potential of the three medicinal fruits used in Triphala: An Ayurvedic formulation
The present investigation is focused on antibacterial potential of dimethyl sulphoxide (DMSO) extracts from fruits of Emblica officinalis Gaertn., Terminalia bellerica Roxb. and Terminalia chebula Retz. against Salmonella typhi (32 strains) isolated from different human pathogens in agar dilution technique. DMSO fruit extracts of E. officinalis showed potent...
August 2010
Anticarcinogenic effect of ferulic acid on ultraviolet-B irradiated human keratinocyte HaCaT cells
The key role of ultraviolet (UV) radiation in skin cancer development has been confirmed by abundant evidences. The human epidermis is the main defense against UV radiation. Ferulic acid is a potent ubiquitous plant antioxidant. The purpose of the present study was to investigate whether Ferulic acid could inhibit ultraviolet-B (UVB) induced carcinogenesis and its possible underlying mechanisms. The human keratinocyte...
August 2010
Cytotoxicity activity of isolated compounds from Elaeodendron transvaalense ethanol extract
Five known compounds, four triterpenoids [(lup-20(30)-ene-3α,29-diol (1), lup-20(29)-ene-30-hydroxy-3-one-(2), Ψ – taraxastanonol 3, β-sitosterol 4] and 4’ –O- methylepigallocatechin 5 were isolated from Elaeodendron transvaalense bark ethanol extract. This plant is traditionally used in Southern Africa for the treatment of various ailments including sexually...
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