Investigation of antioxidant capacity of Melissa officinalis L. essential oils
September 2013
Extraction of natural substances with antioxidant activity, to replace synthetic food preservatives has gained great importance. Medicinal plants have traditionally been used in folk medicine as well as to extend the shelf life of foods. Melissa officinalisL., an aromatic Lamiaceae has the main phenolic components that are useful to utilize as antioxidant. In this work, M. officinalis L. leaves was...
Encapsulation of cinnamon oil in b-cyclodextrin
September 2013
Inclusion complexes between the Cinnamomum verum essential oil and b-cyclodextrin were prepared by co-precipitation method with the four oil to b-cyclodextrin ratios of 5:95, 10:90, 15:85 and 20:80 (w/w) in order to determine the effect of the ratio on the inclusion efficiency of b-cyclodextrin for encapsulating oil volatiles. The characterization of the complex involved the analysis of the...
Anxiolytic and anticonvulsant activity of alcoholic extract of heart wood of Cedrus deodara roxb. in rodents
September 2013
The objective of the present study was to evaluate the anxiolytic and anticonvulsant activity of the alcoholic extract of heart wood of Cedrus deodara(ALCD). 50, 100 and 200 mg/kg of ALCD were tested for its anxiolytic and anticonvulsant activity. Anxiolytic activity was tested by exposing mice to unfamiliar aversion in different methods like elevated plus maze model, light-dark model and actophotometer. The...
Proximate composition and metal evaluation of four selected medicinal plant species from Pakistan
September 2013
Proximate composition and levels of metals in four commonly consumed species,Sonchus eruca, Melia azadirchta, Withania cogulus and Fagonia indica, were investigated for the first time. Ash, carbohydrate, protein, fiber, fat and moisture were arranged on dry basis, while Cu, Pb, Co, Cd, Fe, Cr, Mg and Na were also investigated in metal analysis using association of official analytical chemists...
Comparative in vitro trypanocidal activities of water and methanol extracts of three parts of Khaya senegalensis on Trypanosoma evansi
September 2013
A comparative phytochemical and in vitro studies of water and methanolic extracts of three different parts of Khaya senegalensis, a plant used by herbalists in Nigeria to treat helminthiasis and other ailments revealed the presence of alkaloids, carbohydrates, tannins, saponins, flavonoids, terpenes sugars, cardiac glycosides and phlobatannins. At a dose of 20 mg/ml the water extract (leaf, stem...
Variability of essential oil composition in Albanian accessions of Satureja montana L.
September 2013
Satureja montana L. is an important aromatic and medicinal plant. The present study is aimed to contribute to a better knowledge of chemical biodiversity features of S. montana in Albania. The authors studied the variation in the chemical composition of its essential oil in six populations collected from agro-climatically diverse sites. Dried leaves were hydrodistillated and the essential oil was...
Screening of African traditional vegetables for their alpha-amylase inhibitory effect
September 2013
Diabetes is a syndrome of disordered metabolism resulting in abnormally high blood sugar levels (hyperglycemia). The one possibility of lowering postprandial glucose levels is by the inhibition of α-amylase activity. In this study, aqueous extracts from leaves, fruits and flowers, stems and roots of twenty African traditional vegetable plants were tested for their inhibitory effect on α-amylase. The results...
Increase in flavonoids content in red onion peel by mechanical shredding
September 2013
Quercetin, a bioflavonoid extracted from red onion peel, has a marked inhibitory activity against phosphodiesterase 5A. Mechanical shredding of red onion peel increased its total flavonoid content two fold compared to control. Change in individual flavonoid content was studied using HPLC. Quercetin 4'-O-β-glucopyranoside showed the highest increase in content after shredding with slight change in quercetin...
Preliminary studies on the in vitro antitrypanosomal activity of aqueous and methanolic crude extracts of stem bark of Nauclea latifolia on Trypanosoma congolense
September 2013
In Nigeria, herbal treatment of various types of diseases is very common using medicinal plants. In the present study, preliminary investigation on the In vitroantitrypanosomal activity of methanolic and aqueous extracts of stem bark extracts of Nauclea latifolia was evaluated on Trypanosoma congolense. Blood obtained from a highly infected mice with T. congolense (107) was incubated with...
In vitro antisickling effects of Xylopia aethiopica and Monodora myristica
September 2013
The antisickling effects of two indigenous spices Xylopia aethiopica andMonodora myristica were investigated. Two hundred grams (200g) of each powdered sample was divided into two equal parts. One part was used for crude aqueous extraction (CAE) and the other, for Batch process extraction, with chloroform, methanol, butanol, and water to yield; the fat-soluble (FAS), butanol-soluble (BUS) and...
Effects of arbuscular mycorrhizal fungi, different levels of phosphorus and drought stress on water use efficiency, relative water content and proline accumulation rate of Coriander (Coriandrum sativum L.).
September 2013
An experiment was carried out using a split factorial based randomized complete block design with 4 replications to study the effects of AMF, phosphorus and drought stress on some characteristics of Coriander. The factors studied included application and non-application of mycorrhiza (Glomus hoi) 0.35 and 70 kg ha-1 phosphorus applications, and two levels of drought stress irrigation. The results showed that...
Plants used in traditional management of human ailments at Bale Mountains National Park, Southeastern Ethiopia
September 2013
Though the majority of people in Ethiopia at large, and at Bale Mountains National Park in particular, rely on ethnomedicinal plant species to manage human ailments, the indigenous knowledge largely remains undocumented. Therefore, an ethnobotanical study was conducted on medicinal plant species used to manage human ailments at Bale Mountains National Park, Southeastern Ethiopia. Observations and semi-structured...
In vitro 5-Lipoxygenase inhibition of polyphenolic antioxidants from undomesticated plants of South Africa
September 2013
Aqueous and methanolic extracts of 18 leafy vegetables from South Africa were investigated for their free radical scavenging activity, total phenolic content and anti-inflammatory properties. Amaranthus dubius, Amaranthus hybridus, Amaranthus spinosus, Asystasia gangetica, Bidens pilosa, Centella asiatica, Ceratotheca triloba, Chenopodium album, Cleome monophylla, Emex australis, Galinsoga parviflora, Justicia...
Analgesic, anti-inflammatory, antipyretic and anti-plasmodial effects of the methanolic extract of Crossopteryx febrifuga
September 2013
Preparations of Crossopteryx febrifuga have been used in traditional medicine for treatment of pain and malaria for many years and their efficacies are widely acclaimed among the Hausa communities of northern Nigeria. The methanolic extract of C. febrifuga was evaluated for analgesic, anti-inflammatory, antipyretic and anti-plasmodial activities of in rodents. The extract significantly diminished...
Analgesic, anti-inflammatory and antipyretic activities from flavonoid fractions of Chromolaena odorata
September 2013
The ethanolic extract of Chromolaena odorata was fractionated with solvent-solvent extraction technique using the following solvents successively, n-hexane, dichloromethane, ethyl acetate, n-butanol and water. The fractions were evaluated for analgesic, anti-inflammatory and antipyretic activities using standard experimental models which includes; hot plate and formalin paw licking tests for analgesic...
Diversity and conservation of medicinal plants in the Bomaa community of the Brong Ahafo region, Ghana
September 2013
Patrick Addo-Fordjour*, Alexander Kofi Anning, Ebenezer Jeremiah Durosimi Belford and Dorcas Akonnor
Isolation and characterization of 2, 3, 8-tri-me ether ellagic acid from the stem bark of Irvingia gabonensis (Baill)
September 2013
The stem bark of Irvingia gabonensis used variously in ethno medicinal treatments in some parts of Nigeria was studied. A silica gel column chromatography of the methanol extract (using only chloroform) eluted a pale yellow crystalline substance identified by means of spectral analyses as 2,3,8-Tri-Me ether ellagic acid. Key words: Irvingia gabonensis, 2, 3, 8-Tri-Me ether ellagic acid,...
Rosmarinic acid biosynthesis in callus and cell cultures of Agastache rugosa Kuntze
September 2013
Callus and cell suspension cultures of Agastache rugosa were established to investigate the production of rosmarinic acid in vitro. For callus induction 2,4-D treatment was more effective than that of NAA. The best callus induction rate (92%) and callus growth A. rugosa were obtained in MS medium containing 2 mg/l 2, 4-D. In cell suspension culture of A. rugosa, the maximum growth (7.7 g/l)...
In vitro propagation of Crotalaria verrucosa L. an important ethnobotanical plant
September 2013
An efficient and reproducible procedure for the large scale propagation ofCrotalaria verrucosa, an important ethno botanical herb is described. Multiple shoots were produced from cotyledonary nodes of 15 days old aseptic seedlings on Murashige and Skoog (MS) medium supplemented with thidiazuron (TDZ) or benzyladenine (BA). Highest number (6.0) of shoots per cotyledonary node was recorded on MS medium with 0.1 μM...
Anti-diabetic activity of Syzygium cumini and its isolated compound against streptozotocin-induced diabetic rats
September 2013
Syzygium cumini (Myrtaceae) is widely used traditional system of medicine to treat diabetes in India. The present study was carried out to isolate and identify the putative antidiabetic compound from the S. cumini [SC] seed. A compound, mycaminose was isolated from SC seed extract. The isolated compound mycaminose (50 mg/kg) and ethyl acetate [EA] and methanol [ME] extracted compounds of S....
Antioxidant property of selected Ocimum species and their secondary metabolite content
September 2013
In this study, chemical composition and antioxidative properties of eight selected Ocimum species (Ocimum gratissimum, Ocimum americanum, Ocimum minimum, Ocimum citriodorum, Ocimum kilimandscharicum, Ocimum grandiflorum, Ocimum lamiifolium, and Ocimum selloi) was investigated. Leaves of these plants were extracted using methanol. The quantitative analysis of phenolic constituents was determined using...
Review on diabetes, synthetic drugs and glycemic effects of medicinal plants
September 2013
There has been increased scientific interest in medicinal plants that have been reported to be used traditionally to treat diabetes in humans. This is due to increased efficacy of new plant-derived drugs, growing interests in natural products and the presence of serious side effects of conventional medicines. The development of drugs from plants by drug companies also encourages large pharmaceutical screening of herbs....
Activity of Sansevieria aethiopica (Thunberg) leaf extracts on the planktonic and the biofilm of Candida albicans ATCC 10231
September 2013
Increase in resistance of Candida species to conventional prescribed antifungal agents poses a challenge to health care. This calls for alternative therapies such as the use of antifungal plant extracts. Therefore, the objective of this study was to screen Sansevieria aethiopica(Thunberg.) leaf extracts for anti-fungal activity against Candida albicans. A microbroth dilution method was used...
Safety profile of suppository Hamamelis virginiana leaf extract
September 2013
The increased use of herbal remedies combined with their increasing availability in pharmacies, beauty and nutrition shops and supermarkets necessitates the evaluation of their efficacies and safety. The objective of the present study is to evaluate the safety of the rectal administration of the dry leaf extract of witch hazel (Hamamelis virginiana L. Family: Hamamelidaceae), one of the traditionally used...
Antioxidant and free radical scavenging activity of curcumin determined by using different in vitro and ex vivo models
September 2013
Antioxidant potential and free radical scavenging abilities of curcumin were evaluated using in vitro models such as, reducing potential, 1,1-diphenyl-2-picryl-hydrazil (DPPH), superoxide (O2-), hydrogen peroxide (H2O2) and nitric oxide (NO) radical scavenging. Curcumin recorded dose-dependent effect and higher reducing potential (ODmax = 0.266). Curcumin could efficiently scavenged DPPH (IC50 = 1.08...
Growth, flowering, fruit dimensions and post harvest parameters of Morinda citrifolia as influenced by irrigation regimes and organic manures
September 2013
An experiment was carried out in Morinda citrifolia through split plot design with irrigation regimes on main plot (four levels) and organic manures on sub plot (eight levels) with two replications. Among the treatment combinations, M2S4 (100% WRc through drip irrigation + 50% farm yard manure (FYM) + 50% vermicompost (VC)) registered the highest plant height (148.74, 202.54 and 254.12 cm), number of...
Ethnobotany of Acanthaceae in the Mount Cameroon region
September 2013
An ethnobotanical survey was carried out in the Mount Cameroon area, southwest region of Cameroon to determine the uses of different species of the Acanthaceae. An inventory of identified Acanthaceaes used by different individuals and traditional medical practitioners (TMPs) was established from information gathered through the show-and-tell/semi-structured method and interviews during field expeditions. Sixteen...
Ethnobotany of some polypetalous plants from the Kashmir Himalaya
September 2013
Importance of medicinal plants in traditional healthcare practices which provide clues to new areas of research and in biodiversity conservation is now well known. However, information on the uses of plants for medicine is lacking from many hilly and tribal areas of Kashmir Himalaya. The present study has been carried out from different hilly areas of Kashmir Himalaya, to look for the diversity of plant resources that...
In vitro antioxidant and antimicrobial activity of anthotaxy extracts from Dendranthema morifolium (Ramat.) Tzvel. and Chrysanthemum indicum L.
September 2013
Dendranthema morifolium (Ramat.) Tzvel. and Chrysanthemum indicum L. are two traditional Chinese medicines, which were often obscure in prescriptions. In this study, the aqueous and ethanolic anthotaxy extracts from D. morifolium (Ramat.) Tzvel. and C. indicum L., were evaluated for their antioxidant and antimicrobial properties. Ethanolic extracts showed higher contents of...
Comparative toxicity of Azadirachta indica A. juss. and Callistemon citrinus D. C. against sugarcane stalk borer Chilo auricilius Dudgeon (Lepidoptera: Crambidae)
September 2013
Efficacy of Azadirachta indica A. Juss. leaves and Callistemon citrinus D.C. leaves extract were tested against sugarcane stalk borer, Chilo auricilius Dudgeon. The plant extract prepared by sequential extraction method using different solvent like, petroleum, chloroform, methanol, distilled water and acetone at different per cent concentrations were used. Ovipositional behavior...
Essential oil composition and pharmacological activities of Micromeria biflora (Buch.- Ham. Ex D. Don) Benth. collected from Uttarakhand region of India
September 2013
By a combination of gas chromatography (GC) and gas chromatography/mas spectrometry (GC/MS) sixteen compounds contributing to 91.9% of the total essential oil of Micromeriabiflora (Buch.-Ham. ex D. Don) Benth. (Lamiaceae) were identified. The oil was dominated by oxygenated sesquiterpenoids; caryophyllene oxide (42.5%), epi-α-cadinol (5.7%), β-eudesmol (9.3%), oplapanone (4.5%) and guaial (4.6%)....
Polyphenolic content and antioxidant activity of leaf extracts from Quercus durifolia, Quercus eduardii, Quercus sideroxyla and Quercus resinosa
September 2013
The phenolic content and antioxidant activities of extracts from Quercus durifolia, Quercus resinosa, Quercus eduardii and Quercus sideroxyla leaves were studied. Extracts were obtained by successive extraction with aqueous acetone (70%) followed by methanol (50%). Antioxidant activities were determined using a single electron transfer (SET) and hydrogen atom transfer (HAT) based assays. For...
Evaluation of the activity of Guatemalan medicinal plants against cancer cell lines and microbes
September 2013
Medicinal plants are used by rural Guatemalan villagers to treat a variety of ailments, and a better understanding of their effectiveness against common diseases is warranted. Acetone and methanol extracts of 73 medicinal plant species from 44 families were bio-assayed against breast, cervical, skin, and tongue cancers, and Staphylococcus aureus, Escherichia coli, Streptococcus...
Macro and microscopical identification of two Acanthospermum medicinal plants
September 2013
Acanthospermum hispidum and Acanthospermum australe (Asteraceae) are widely distributed in arid regions, in northeastern Brazil, and the first specie is used in folk medicine as anti‑asthmatic while the second specie as antiseptic, anti-inflammatory and diuretic. They are often confounded and used indifferently for the same medicinal purposes due to both having similar morphological characteristics. The aim of this...
Antimicrobial activity of some Vietnamese medicinal plants extracts
September 2013
Antimicrobial activities of some Vietnamese medicinal plant extracts including Premna integrifolia L, Terminalia nigrovenulosa, Pseuderanthemum palatiferum, Streptocaulon juventas, Eclipta alba, and Solanum hainanense were investigated. Almost all extracts had antimicrobial effects on the tested microorganisms, including Bacillus subtilis,Staphylococcus aureus, Lactobacillus...
Effects of licorice (Glycyrrhiza uralensis F.) commercial extract on the biodistribution of the radiopharmaceutical sodium pertechnetate, radiolabeling of blood constituents and on some biochemical parameters in Wistar rats
September 2013
This study investigated the influence of a licorice (Glycyrrhiza uralensis) commercial extract on the biodistribution of the radiopharmaceutical sodium pertechnetate, on the radiolabeling of blood constituents and on selected biochemical parameters of Wistar rats. The animals were treated with licorice for 7 days and the assays were performed. A biodistribution assay was performed by administering sodium pertechnetate...
Essential oil composition and pharmacological activities of Micromeria biflora (Buch.- Ham. Ex D. Don) Benth. collected from Uttarakhand region of India
September 2013
By a combination of gas chromatography (GC) and gas chromatography/mas spectrometry (GC/MS) sixteen compounds contributing to 91.9% of the total essential oil of Micromeriabiflora (Buch.-Ham. ex D. Don) Benth. (Lamiaceae) were identified. The oil was dominated by oxygenated sesquiterpenoids; caryophyllene oxide (42.5%), epi-α-cadinol (5.7%), β-eudesmol (9.3%), oplapanone (4.5%) and guaial (4.6%)....
The effects of alcoholic extract of Arjuna (Terminalia arjuna Wight & Arn.) bark on stability of clarified butterfat
September 2013
Potential of ethanolic extract of Terminalia arjuna Wight & Arn bark to enhanced the shelf life and anti-oxidant ability of clarified butterfat (ghee) was evaluated using accelerated oxidation tests. Seven percent by weight of ethanolic extract of T. arjuna Wight & Arn bark was effective in retarding the auto-oxidation of both cow and buffalo ghee during storage. It had significant...
Evaluation of antioxidant, oxidative DNA damage protective and antimicrobial activities of Foeniculum vulgare plant
September 2013
The potential health benefits of Foeniculum vulgare (FV), commonly known as fennel, is related to the treatment of cardiovascular disease, digestive disorders, carminative, diuretic, etc. The present study was carried out to evaluate F. vulgare plant as new source of natural bioactive molecules having antioxidant potential and DNA damage protection activity caused by reactive oxygen...
Assessment of some agro-technological parameters of cactus pear fruit (Opuntia ficus-indica Mill.) in Morocco cultivars
September 2013
Cactaceae had always attracted attention by their strange shapes and important adaptability supporting extreme conditions. For this reasons, Fruit traits were measured on 13 cultivars growing in different locations in Morocco. Results show significant differences between the cultivars. The source of this variation was probably genetic without excluding the geographic effects. The Tamri, Berkan, Ait Baha cultivars showed...
Molecular authentication by multiplex-PCR of three similar medicinal plant species: Cynanchum wilfordii, Cynanchum auriculatum and Polygonum multiflorum (Fallopia multiflorum)
September 2013
Polygoni Multiflori radix (Hashuoh in Korean and Heshouwu in Chinese) and Cynanchi Wilfordii Radix (Baekshuoh in Korean and Beishouwu in Chinese) are important oriental medicinal herbs in Korea, Japan, and China. The trnL (tRNA-Leu) intron region was targeted for molecular analysis with universal primers to discriminate the morphologically similar to Polygoni multiflori Radix and Cynanchi wilfordii radix from their...
Anti-ulcer activities of oil extract of Balanites aegyptiaca seed in guinea pigs
September 2013
Over the years, management of advanced peptic ulcers used to be a nightmare and in most cases surgery is resorted to. This study was carried out to investigate the anti-ulcer activities of the oil extract of Balanites aegyptiaca seed in guinea pigs. Thirty guinea pigs weighing between 200 and 440.8 g were randomly assigned into six groups of five each. Gastroduodenal ulceration was achieved by pyloric ligation...
Variation in phenolic constituents and antioxidant capacities of plant organs of three Cuban species of Pluchea Cass. (Asteraceae) under ex vitro and in vitro growth conditions
September 2013
The phenolic content and antioxidant capacity of Cuban Pluchea species extracts were measured by polar extraction technique with the aim to optimize antioxidant-rich extracts. Our results highlighted the variability of the phenolic content and antioxidant potential in the genus Pluchea according to the species and plant organs. The antioxidant capacity and phenolics were additionally examined...
Assessment of the potential toxic effects of Agave sisalana Perrine ex Engelm in rats
September 2013
Agave sisalana is commonly used by local communities to treat mucosal inflammation and control gastro-intestinal parasites in chickens. However, information on toxicity of A. sisalana is limited. This study conducted acute, sub-acute and chronic tests to assess the potential toxicity of the plant on rats. The A. sisalana aqueous leaf extract was prepared following the procedures of the...
Medicinal and non-medicinal uses of some plants found in the middle region of Saudi Arabia
September 2013
Kingdom of Saudi Arabia is gifted with a wide range of flora, consisting of different species of trees, shrubs and herbs. It contains hydrocarbon, edible and medicinal plants. Eighty three species (belonging to thirty four plant families) have been investigated for their traditional and medicinal potentiality. The ethnopharmacy of Saudi Arabia represents a good example of a strongly interconnected integration...
The antimutagenic and antioxidant properties of Spirogyra neglecta (Hassall) Kützing
September 2013
Spirogyra species is a freshwater filamentous green alga. Consumed as food in Northern Thailand, the algae have shown hypoglycemic ability in rats. The aims of this study were to investigate the chemical composition, antioxidant and antimutagenic activities in vitro of the aqueous extract of Spirogyra neglecta (Hassall) Kützing. The antioxidant activity was evaluated by...
Effect of cultural practices and environmental conditions on yield and quality of herbal plants: Prospects leading to research on influence of nitrogen fertilization, planting density and eco-physiological parameters on yield and quality of field-grown bush tea (Athrixia phylicoides DC.)
September 2013
Herbal plants are grown in diverse regions of varying climates with growth and productivity being influenced by both biotic and abiotic factors. Cultural practices have a significant influence on growth and productivity of these plants. In order to maximize yield and quality of tea as an herbal plant, cultural practices such as fertilization and planting density should be optimized. Fertilization improves growth, total...
Antioxidant and antifungal activity of selected plant species used in traditional medicine
September 2013
In vitro antifungal activity of acetone, methanol, hexane and dichloromethane leaf extracts of six plant species (Bucida buceras, Breonadia salicina, Harpephyllum caffrum, Olinia ventosa, Vangueria infausta and Xylotheca kraussiana) was determined using a serial dilution assay against Aspergillus fumigatus. These plant species were selected from 600 evaluated, inter alia, against two...
Using high performance liquid chromatography (HPLC) fingerprint distinguish producing area and grown years of Shanxi Astragalus
September 2013
So far, there has been no advanced method to assure the quality control for Astragalus. However, this paper summarizes a fingerprinting approach, which based on developed high performance liquid chromatography to provide reference for the scientific evaluation of the intrinsic quality of Astragalus. To assess the chemical content of Astragalus in different years and different producing areas, we determined 22 batches of...
Antibacterial, antioxidant, cytotoxic activities and preliminary phytochemical screening of extracts from Combretum schumannii Engl.
September 2013
Combretum schumannii Engl. is a plant documented in traditional medicine system for treatment of headache, oedema and pneumonia in some areas of North Eastern Tanzania. In the present study, extracts from parts of this plant were assessed for antibacterial, antioxidant capacity and cytotoxic activities to establish rationale for its use in traditional medicine. Dried leaves, fruits, stem bark and roots...
Page 20 of 77, showing 50 records out of 3835 total, starting on record 951, ending on 1000
