Methanol Extract Of Stem Research Articles

Anticandidal synergistic activity of Ocimum sanctum and fluconazole of azole resistance strains of clinical isolates

Candida albicans is the most prevalent fungal pathogen in humans. It is the causative agent and most associated with serious fungal infection, accounting for more than 90% of cases. It is a most common cause of deep mycoses and vulvovaginal candidiasis. In the present study we found that methanolic extract of O. sanctum in combination of fluconazole shows higher zone of inhibition and lesser MIC values as compared to methanolic extract of leaves of O. sanctum or fluconazole when used alone. Synergistic antimicrobial activity was found when methanolic extract of leaves of O. sanctum was used in combination with fluconazole against C. albicans azole resistance strains isolated from catheter tip (CT) and high vaginal swab (HVS) (FIC≤0.5). Partial synergistic activity was observed against urine (U). Methanolic extract of stem of O. sanctum in combination with fluconazole gave indifferent antifungal results (FIC=1.0–4.0). Benzene extract of the leaf and stem of O. sanctum in combination with fluconazole showed indifferent antifungal results (FIC=1.0–4.0). Aqueous extract of leaves of O. sanctum in combination with fluconazole showed partial synergistic antimicrobial activity against catheter tip (CT) and high vaginal swab (HVS) and urine (U) (FIC=0.5–1.0). In the present study we evaluate the synergism of C. albicans against azole resistant clinical isolates. This study indicates clear evidence supporting the traditional use of O. sanctum in treating Candida infectious diseases.

Hepatoprotective and antioxidant activities of Spondias mombin leaf and stem extracts against carbon tetrachloride-induced hepatotoxicity.

ObjectiveSpondias mombin L. is a tree used in folk medicine in Nigeria for the treatment of hepatitis. This study was carried out to comparatively evaluate the hepatoprotective and antioxidant effects of S. mombin leaf and stem (SML and SMS) methanolic extracts in a rat model of carbon tetrachloride (CCl4)-induced hepatotoxicity.MethodsForty-two rats were distributed into seven groups. Groups A and B received water; groups C and D received 500 and 1000 mg/kg SML extract, respectively; groups E and F received 500 and 1000 mg/kg SMS extract, respectively; and group G received 100 mg/kg silymarin. Water, the two extracts, and silymarin were administered daily by oral gavage for 7 days. Hepatotoxicity was induced in groups B to G by the administration of CCl4 once on the seventh day. After 48 h, rats were sacrificed, and tissues and serum samples were examined for histological and biochemical indices of hepatotoxicity.ResultsAdministration of CCl4 resulted in liver injury with significant elevation in the hepatocellular injury markers alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), total bilirubin (TBIL), and conjugated bilirubin (CBIL), associated with a significant reduction in total circulatory protein. Pretreatment with SML and SMS extracts at both doses significantly ameliorated liver injury; lowered ALT, AST, ALP, TBIL, and CBIL levels; elevated cellular glutathione levels as well as catalase and superoxide dismutase activities; and decreased the levels of thiobarbituric acid reactive substances.ConclusionThis study provides preliminary evidence supporting the potential therapeutic benefit of S. mombin in xenobiotic-induced hepatotoxicity.

Isolation of Bioactive Compounds from Calicotome villosa Stems.

A phenylethanoid, two steroids, a flavone glucoside and a chalcone have been isolated for the first time from the stems of Calicotome villosa together with a previously isolated flavone glucoside. Their structures were determined by spectroscopic analyses (NMR, HRMS) as basalethanoïd B (1), β-sitosterol and stigmasterol (2), chrysine-7-O-β-d-glucopyranoside (3), chrysine 7-((6′′-O-acetyl)-O-β-d-glucopyranoside) (4) and calythropsin (5). The crude extracts and the isolated compounds (except 4), were evaluated for their antioxidant, antimicrobial (against two Gram-positive bacterial strains: Staphylococcus aureus, Bacillus cereus, four Gram-negative bacterial strains: Staphylococcus epidermidis, Klebsiella pneumonia, Acinetobacter baumanii, and three yeasts: Candida albicans, Candida tropicalis, and Candida glabrata), hemolytic, antidiabetic, anti-inflammatory and cytotoxic activity. The crude extracts showed good ability to scavenge the free radical DPPH. Methanol stem extract followed by the dichloromethane stem extract showed moderate antimicrobial potency; furthermore, at 1 mg/mL the methanol extract showed an inhibition of C. albicans growth comparable to nystatin. Dichloromethane, methanol, and aqueous extracts inhibited 98%, 90%, and 80% of HeLa cell proliferation at 2 mg/mL respectively. Weak hypoglycemic and hemolytic effects were exhibited by the crude extracts. Among all the tested compounds, compound 3 showed remarkable hypoglycemic potential (93% at 0.1 mg/mL) followed by compound 5 (90% at 0.3 mg/mL). Compound 5 was the most effective in the DPPH. scavenging assay (100% at 0.1 mg/mL) and cytotoxic assay on HeLa cells (99% and 90% after 24 and 48 h of treatment at 0.1 mg/mL, respectively). No anti-inflammatory effects were displayed by any of the crude extracts or the isolated compounds at any of the tested concentrations.

Isolation and antiproliferative activity of triterpenoids and fatty acids from the leaves and stem of Turraea vogelii Hook. f. ex benth

Chloroform extract from the leaves of Turraea vogelii Hook f. ex Benth demonstrated cytotoxic activity against a chronic myelogenous leukemia cell, K-562 with IC50 of 14.27 μg/mL, while chloroform, ethyl acetate and methanol extracts from the stem of the plant inhibited K-562 cells growth with IC50 of 19.50, 24.10 and 85.40 μg/mL respectively. Bioactive chloroform extract of Turraea vogelii leaves affords two triterpenoids: oleana-12,15,20-trien-3β-ol (1), and oleana-11,13-dien-3β,16α,28-triol (2), with six fatty esters, ethyl hexaeicos-5-enoate (3), 3-hydroxy-1,2,3-propanetriyltris(tetadecanoate) (4), 1,2,3-propanetriyl(7Z,7′Z,7′′Z)tris(-7-hexadecenoate) (5), 1,2,3-propanetriyl(5Z,5′Z,5′′Z)tris(-5-hexadecenoate) (6), 1,2,3-propanetriyltris(octadecanoate) (7), and 2β-hydroxymethyl tetraeicosanoate (8). Tetradecane (9), four fatty acids: hexadecanoic acid (10), tetradecanoic acid (11), (Z)-9-eicosenoic acid (12), and ethyl tetradec-7-enoate (13) were isolated from chloroform extract of Turraea vogelii stem. 1,2,3-propanetriyltris(heptadecanoate) (14), (Z)-9-octadecenoic acid (15) and (Z)-7-tetradecenoic acid (16) were isolated from ethyl acetate extract while (Z)-5-pentadecenoic acid (17) was obtained from methanol extract of the plant stem. Compounds 1, 2, 5, 6, 11, 12, 15, 16 and 17 exhibited pronounced antiproliferative activity against K-562 cell lines.

Evaluation of Antiarthritic Potentials of Methanolic Stem Extract of Tecoma Stans Linn in Wistar Albino Rat

Evaluation of Antiarthritic Potentials of Methanolic Stem Extract of Tecoma Stans Linn in Wistar Albino Rat

Evaluation of antioxidant and antibacterial activities of Crotalaria pallida stem extract

BackgroundAntioxidants play an important role in protecting cellular damage by reactive oxygen species. The aim of the present study is to assess the phytochemical nature, antioxidant and antibacterial activities of petroleum ether, chloroform, methanol, and aqueous extracts of Crotalaria pallida stem.MethodsThe preliminary screening of the various extracts was carried out using standard methods. Total phenolic content (TPC) was determined by the modified Folin-Ciocalteu method and antioxidant activities were assayed using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, reducing power assay, total antioxidant capacity (TAC) and reduction of ferric ions. Antibacterial activity of different extracts were assayed against Gram-positive and Gram-negative bacterial strains by observing the zone of inhibition using disc diffusion method, where Staphylococcus aureus, Bacillus cereus, Escherichia coli and Pseudomonas aeruginosa were used as bacterial strains.ResultsPetroleum ether, chloroform, methanol and aqueous extracts of stem exhibited remarkable antioxidant activity in terms of all the assays tested. Petroleum ether extract (PEE) showed DPPH radical scavenging activity with IC50 value of 126.96 µg/ml. In antibacterial assay, the PEE and chloroform extract (CE) showed mild to moderate antibacterial activity against all the bacterial strains except B. cereus while methanol extract (ME) showed no inhibitory effect against any of the tested bacteria.ConclusionPEE, CE and ME of C. pallida stem were found to be the most effective free radical quencher and a potent source of natural antioxidants as well as antibacterial activity. Thus justifying their traditional use in green therapeutics.

HPTLC analysis of berberine in stem extracts of Fibraurea darshani

The present study is a first report on the phytochemical analysis of the plant Fibraurea darshani which is endemic to Western Ghats. The plant is a woody dioecious climber belonging to the family Menispermaceae. Preliminary phytochemical screening of methanolic extracts of the stem of F. darshani revealed the presence of secondary metabolites like alkaloids, carbohydrates, anthraquiones, terpenoids, flavonoids, phenolics, sterols etc. A simple and reproducible high performance thin layer chromatography was developed to evaluate the presence of berberine in methanol extract of stem of F. darshani. This method involves separation of compounds by HPTLC on pre-coated silica gel 60F 254 plates with a solvent system of Chloroform: Ethyl acetate: Methanol: Formic acid (4:5:4:0.3) and scanned using densitometric scanner in UV reflectance photo mode at 254 and 366nm. The Rf values (0.97) for berberine in the plant sample and the reference standard were found comparable under UV light at 366nm. The HPTLC method developed was simple, accurate and specific.

Determination of Flavonoid, Tannin and Vitamin C Content from Methanol Extract Wrapping Stone Banana (Musa brachycarpa), Ketip Banana (Musa Paradisiaca Forma Typiaca) and Kepok Banana (Musa acuminata)

Research has been done to investigate the levels of flavanoid, tannin, and vitamin C of methanol extract of Stone banana (Musa brachycarpa), Ketip banana (Musa paradisiaca forma typiaca ), and Kepok banana (Musa acuminata). Jukut Ares is a Balinese traditional cuisine frequently served in any events of celebrations. The use of young stems of such banana varieties as the main raw materials in the process of making jukut ares has not been scientifically elucidated. Antioxidants are compounds with ability to inhibit oxidation-related reactions due to free radicals that cause disturbance of saturated fatty acids of cell membrane, blood vessels, DNA, as well as adipose tissues which lead to occurrence of various diseases. Plants components will have antioxidant activities if they contain compounds (phenol and flavanoid) with ability to scavenge free radicals. Tannin is a water based phenolic compound and vitamin C is also a water based vitamin that play important roles in preventing us from various diseases. Extraction was conducted by applying maceration method and to investigate the levels of flavanoid, spectrophotometric UV vis with aluminum chloride (AlCl3) was applied. The level of vitamin C of the materials was conducted by Iodine titration method, while the level of tannin was determind by applying spectrophotometri. The results showed that methanol extract of Ketip banana stem contained the highest level of flavanoid with a quantity of 53.13 mg/100gr QE, and this was followed by stone banana (36.28) and kepok banana (32.07) The highest vitamin C level was indicated in the extract of ketip banana (418.32 mg/100gr), which is followed by kapok banana and stone banana. In the calculation of tannin content, pisang ketip showed the highest level, while pisang batu contained the lowest level of tannin.

Mutagenicity, cytotoxic and antioxidant activities of Ricinus communis different parts

Ricinus communis (castor plant) is a potent medicinal plant, which is commonly used in the treatment of various ailments. The present study was conducted to appraise the cytotoxicity and mutagenicity of R. communis along with antioxidant and antimicrobial activities. Cytotoxicity was evaluated by hemolytic and brine shrimp assays, whereas Ames test (TA98 and TA100) was used for mutagenicity evaluation. Plant different parts were extracted in methanol by shaking, sonication and Soxhlet extraction methods. The R. communis methanolic extracts showed promising antioxidant activity evaluated as through total phenolic contents (TPC), total flavonoid content (TFC), DPPH free radical inhibition, reducing power and inhibition of linoleic acid oxidation. R. communis seeds, stem, leaves, fruit and root methanolic extracts showed mild to moderate cytotoxicity against red blood cells (RBCs) of human and bovine. Brine shrimp lethality also revealed the cytotoxic nature of extracts with LC50 in the range of 0.22–3.70 (µg/mL) (shaking), 1.59–60.92 (µg/mL) (sonication) and 0.72–33.60 (µg/mL) (Soxhlet), whereas LC90 values were in the range of 345.42–1695.81, 660.50–14,794.40 and 641.62–15,047.80 µg/mL for shaking, sonication and Soxhlet extraction methods, respectively. R. communis methanolic extracts revealed mild mutagenicity against TA98 (range 1975 ± 67 to 2628 ± 79 revertant colonies) and TA100 (range 2773 ± 92 to 3461 ± 147 revertant colonies) strains and these values were 3267 ± 278 and 4720 ± 346 revertant colonies in case of TA98 and TA100 positive controls, respectively. R. communis methanolic extracts prevented the H2O2 and UV to Plasmid pBR322 DNA oxidative damage. Results revealed that R. communis is a potential source of bioactive compounds and in future studies the bioactive compounds will be identified by advanced spectroscopic techniques.

Phytochemical Analysis and In vitro Antimicrobial activities of various extracts of Decalepis arayalpathra

The present study was aimed to investigate the phytochemical, antioxidant, antimicrobial activity of in vivo (root, stem and leaf), and in vitro derived leaf callus of Decalepis arayalpathra. The explants were cultured on MS medium supplemented with different concentration and combination of auxins and cytokinins for callus induction. The total phenolic, flavonoid and tannin contents in different solvent extracts were analysed using standard methods. Antibacterial and antifungal activity of different solvent extracts was carried out using the agar well diffusion method and food poison technique. Maximum callus induction was noticed on MS media supplemented with 2, 4-D (9.05µM/L) and BAP (4.44 µM/L) + NAA (2.69 µM/L) respectively. Total phenolic and flavonoid contents were higher in methanolic extracts of root and stem compared to other extracts. Antimicrobial activities was significantly higher in methanolic extract of root, leaf, stem and callus followed by aqueous and chloroform extract. The maximum antibacterial activity was observed in Klebsiella pneumoniae, Staphylococcus aureus and Escherichia coli in methanolic extracts of stem, leaf and callus. Our results demonstrated the phytochemical and antimicrobial activities of D. arayalpathra and further studies have to be carried out to identify the novel compounds.

Innovative research on isolation, characterization, and identification of bioactivity in the isolated constituent from methanol extract of Galphimia glauca cav. stems

Background: Galphimia glauca Cav (GG) is naturalized in tropical and subtropical regions of the world including India. Objective: The present study has been opted to shed light on GG stems to isolate, characterize, and explore the analgesic and anti-inflammatory potential of the isolated phytomolecule using in vivo models. Materials and Methods: The bioactive fraction of the active stem methanol extract was subjected to column chromatography followed by preparative thin layer chromatography to separate the phytoconstituent. The isolated phytoconstituent was characterized and evaluated for toxicological studies, analgesic, and anti-inflammatory activity. Results: The isolated phytoconstituent “BS-1” was characterized by melting point, Rf value, IR spectra, mass spectra, 1H-NMR spectrum, and 13C NMR spectrum. The LD50of BS-1 was found to be >2000 mg/kg. The results were significant (P Abbreviations Used: GG: Galphimia glauca, GGSME: Galphimia glauca stem methanol extract, GGH: G. glauca n-hexane fraction, GGC: G. glauca chloroform fraction, GGEA: G. glauca ethyl acetate fraction, GGM: G. glauca methanol fraction, IAEC: Institutional Animal Ethics Committee, CPCSEA: Committee for the Purpose of Control and Supervision of Experimental Animals, OECD: The Organization for Economic Co-operation and Development, WHO: World Health Organization, b.w: Body weight, i.p: Intraperitoneal, p.o: per oral, NSAIDS: Nonsteroidal anti-inflammatory drugs, IPE (%): Indicates percentage inhibition of paw edema, 1H-NMR: Proton nuclear magnetic resonance, 13C NMR: Carbon-13 nuclear magnetic resonance, LCP: Lalitha College of Pharmacy, AGI: Anurag Group of Institutions, BS-1: Novel isolated molecule.

Paracetamol and Hydrogen peroxide-induced tissue alterations are reduced by Costus afer extract

Aim/Objective: To evaluate the effect of the methanolic extract of Costus afer stem on paracetamol-induced tissue injury in rats (in-vivo) and its ability to reduce hydrogen peroxide-induced erythrocyte damage (in-vitro). Methods: Twenty-five rats were acclimatized for two weeks and randomized into five groups. Group I were untreated controls, while each rat in groups III - V was given a single intraperitoneal-administration of paracetamol (800 mg/kg b.w.). Prior to the administration of paracetamol, rats in groups II and IV were orally given Costus afer extract at 200 mg/kg b.w while rats in group V were given 400 mg/kg b.w. extract once daily for four days. In the other experiment, hydrogen peroxide was used to induce erythrocyte damage (after isolating erythrocytes from whole blood) and subsequently incubated with the extract at different concentrations. Markers for tissue and erythrocyte damage were assessed in serum, tissue homogenates and erythrocytes. Results: Paracetamol caused marked elevations (p < 0.05) in the levels of alanine aminotransaminase (ALT), aspartate aminotransaminase (AST), alkaline phosphatase (ALP), urea and creatinine in serum. The levels of thiobarbituric acid reactive species (TBARS) in both liver and kidney were also raised over control (p < 0.05) while the activities of superoxide dismutase (SOD) and catalase were reduced over untreated controls (p < 0.05). Pre-treatment of rats with Costus afer extract (p.o.) caused significant reduction in serum levels of ALT, AST, ALP, urea, creatinine and tissue TBARS closer to control values (p < 0.05). Pre-treatment of the rats with the plant extract also increased the activities of SOD and catalase in both liver and kidney. Apart from the levels of TBARS in liver and catalase in kidney, rats pre-treated with 400 mg/kg b.w. extract showed greater response than pre-treatment with 200 mg/kg b.w. The extract also reduced hydrogen peroxide-induced erythrocyte damage assessed as haemolysis and lipid peroxidation which was concentration-dependent (p < 0.05). Conclusion: This indicated that Costus afer possesses the ability to protect the various tissues against chemical-induced injury.

Promising Antifungal Potential of Selective Botanical Extracts, Fungicides and Trichoderma Isolates Against Alternaria solani

In vitro antifungal potential of Trichoderma isolates, selective botanical extracts and fungicides against A. solani was evaluated. Trichoderma isolates, i.e. T. harzianum, T. viride and T. hamatum, were tested for their antifungal effect by dual culture technique at 48, 96, 144 and 172 hrs. T. hamatum produced the highest inhibition of A. solani in vitro, followed by T. hazianum and T. viride after 172 hrs. Methanolic leaf extracts of Elettaria cardamomum, Syzygium aromaticum, Curcuma longa and root extract of Parthenium hysterophorus showed up to 100% inhibition of A. solani, compared to control, while methanolic stem and leaf extracts of P. hysterophorus produced up to 90% inhibition of the pathogen. In vitro, six different systemic fungicides Triger 25% EC (Tebuconazole), Solex (Carbendazim 40% + Triadimefon 10%), Dew (Difenoconazole), Amistor Top SC (Azoxystrobin + Difenoconazole), Corel 25% EC (Difenoconazole), Reflex (Difenoconazole + Propiconazole) were tested against A. solani at 5, 10 and 15 ppm concentrations after 48, 96, 144 and 172 hrs. Corel and reflex at all concentrations produced best growth inhibition of A. solani. The inhibition was maximum by all fungicides at 15 ppm after 172 hrs. All fungicides had a promising inhibitory effect on A. solani, except Solex. It can be concluded from the present investigation that a combination of these strategies can be used in integrated disease management of A. solani on potato.

Hptlc and molecular fingerprinting of Tinospora cordifolia miers ex hook. F. &amp; thoms.

Tinospora cordifolia (wild.) Miers ex Hook. F. & Thoms is well known for its use in traditional as well as modern medicine for its application in various diseases like immunomodulatory, anti-diabetic, anti-oxidant, hepato-protective, anti-arthritic properties. The present study reports a HPTLC and molecular fingerprinting analysis of T. cordifolia plant that can be used as a reference for identification and quality control of the products. The PCR amplification with rbc La-F and rbc La-R ITS region showed 600bp PCR product. The DNA sequence analysis of samples used in this study were submitted with the NCBI nucleotide database and it confirmed that the collected samples are of T. cordifolia. The quantitative analysis of the plant material also revealed the presence of various amount of alkaloids, carbohydrates, tepenoids, steroids, phenolic compounds, glycosides, saponins, flavonoids, proteins. The HPTLC fingerprinting was performed by derivatization with Chloroform: Methanol (9: 1) mobile phase and Anisaldehyde sulphuric acid reagent. HPTLC fingerprinting profile using CAMAG HPTLC tools showed 11 bands at visible light in 10μL of methanolic stem extract and 13 bands at visible light in 10μL of methanolic callus.

Cytotoxicity and immunomodulation activity of different methanolic stem extracts of Tinospora cordifolia (wild.) miers ex hook. f. &amp; thoms.

Cytotoxicity and immunomodulation activity of different methanolic stem extracts of <i>Tinospora cordifolia</i> (wild.) miers ex hook. f. &amp; thoms.

The effect of the aqueous and methanol fennel stem extracts (Foeniculum vulgare Miller) on isolated rat ileum contractility

Background/Aim. The fennel (Foeniculum vulgare Miller, Apiaceae) has a long history of use as traditional herb medicine due to its carminative properties. The study was aimed to investigate the effects of aqueous and methanol fennel stem extracts on intestinal activity. Methods. Relaxant activity of aqueous and methanol fennel stem extracts was evaluated in vitro in three experimental models: spontaneous contraction, acetylcholine and potassium chloride (KCl)-induced contraction of an isolated rat ileum. The composition of aqueous and methanol fennel stem extracts was qualitatively analyzed using the high performance liquid chromatographic (HPLC) analysis. Results. In the presence of an aqueous fennel stem extract at a concentration of 3 mg/mL, the inhibition of the spontaneous contractions of isolated rat ileum was 35.05% ? 3.57%. In presence of a methanol fennel stem extract at the same concentration, the maximum reduction of the spontaneous contractions was 48.91% ? 6.31%. The extracts in a concentration- dependent manner significantly inhibited the acetylcholine and KCl induced contractions of the isolated rat ileum (p &lt; 0.01). The following components were identified in fennel methanol stem extract: 3-caffeoylquinic acid, chlorogenic acid, 4-caffeoylquinic acid, 1,3-dicaffeoylquinic acid, rutin, miquelianin, quercetin heterosides, 1,5-dicaffeoylquinic acid, 1,4-dicaffeoylquinic acid, apigenin and rosmarinic acid. In an aqueous extract, their presence is found in trace amounts. Conclusion. The results of this study showed that the aqueous and methanol fennel stem extracts have spasmolytic effects on the intestinal smooth muscle and may be used for the control of intestinal motility.

Analysis of Phytoconstituents and Biological Activities of Different Parts of Mahonia nepalensis and Berberis aristata

The phytochemicals and biological activities of extracts from leaves and stem of Mahonia nepalensis and Berberis aristata were carried out. Phytochemical screening showed the presence of alkaloids, steroids, polyphenols, quinones, glycoside, flavonoid, terpenoid and cardiac glycoside in the hexane, ethyl acetate and methanol extracts of leaf and stem of these two plants. The column chromatography of methanol extract of stem of Mahonia nepalensis resulted in isolation of four pure compounds MN1, MN2, MN3 and MN4. Out of four isolated compounds, two were identified as MN1:b- sitosterol and MN2: Berberine by comparison of melting point, Co-TLC, IR and UV spectra of authentic sample. Potent pharmacological activity of Mahonia nepalensis and Berberis aristata were revealed from antimicrobial activity and brine shrimp bioassay. Methanol extracts of stem of Mahonia nepalensis and Berberis aristata showed significant zone of inhibition of 18 mm and 21 mm respectively against the Staphylococcus aureus. Methanol extract of Berberis aristata were comparatively little stronger against Staphylococcus aureus than methanol extract of Mahonia nepalensis. LC50 values (μg/ml) of methanol extracts of stem of Berberis aristata and Mahonia nepalensis were found to be 8.058x10-4 and 8.3 whereas methanol extracts of leaf of Mahonia nepalensis and Berberis aristata were 389.04 and 1303.166 respectively.Nepal Journal of Biotechnology. Dec . 2 0 1 7 Vol. 5, No. 1: 5-13

ANTI-TERMITE ACTIVITY OF CERTAIN PLANTS AGAINST ODONTOTERMES OBESUS

Termites are found throughout the world and are a perennial economical issue. Some plants are bestowed with anti-termite compounds which prevent termite infestation. In our study, we examined the anti-termite potential of four plant species namely, Achyranthes asapera, Sida acuta, Syzygium cumini and Terminalia arjuna against Odontotermes obesus. Acetone, chloroform, n-hexane, methanol and distilled water extracts were prepared, their qualitative and quantitative phytochemical constitution was determined. Additional qualitative assays were conducted on the extracts for diterpenes, oils, phytosterols and terpenoids. Methanol extracts were found to be more diverse in phytoconstituents followed by chloroform and acetone extracts. Alkaloids, flavonoids, saponins, total phenols and tannins were found in higher quantities in S. cumini and T. arjuna as compared to A. aspera and S. acuta. The anti-termite potential of each extract revealed that among the plants examined, T. arjunastem methanolic extract exhibited the highest termiticidal potential (74.67%) followed by S.cumini leaf and stem methanolic extracts(70% ,67% respectively). Aqueous extract of A. Aspera was found effective against termites and exhibited 56% mortality over a period of 48hrs

Antibacterial, antioxidant and Immuno-modulatory properties in extracts of Barleria lupulina Lindl.

BackgroundAntibacterial, immunomodulatory and antioxidant properties of aerial parts of Barleria lupulina Lindl were investigated in the present communication.MethodsThe antibacterial, antioxidant and immunomodulatory properties of B. lupulina (methanol soluble leaf and stem extracts) was analyzed by minimum inhibitory concentration, total phenolic contents, DPPH radical scavenging activity, determination of toxicity, hemagglutination antibody titre, delayed type hypersensitivity and neutrophil adhesion test, respectively.ResultsMethanol soluble leaf extract (MLE) contains more soluble bioactive compounds inhibiting the growth of five bacterial pathogens viz., Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Salmonella typhi even at MICs of 1.25 and 2.5 mg/mL. Aqueous stem extract (ASE) was least effective while MLE was highly effective in inhibiting the growth and survival of bacterial pathogens. While testing the effect of these extracts in animal model, no mortality of albino rats was recorded by using MLE and MSE at the concentrations from 200 to 600 mg/kg of their body weight. The MLE showed significant result in agglutination reaction and induced paw edema volumes when compared with untreated group (control). Both MLE and MSE extracts significantly increased neutrophil adhesion with increase in doses of extracts. MLE was found to have more potent immune-stimulant properties than the MSE. High phenolic contents were found in MSE while lowest IC50 values were found in MLE in term of DPPH radical scavenging activity.ConclusionsMethanol soluble leaf and stem extract of Barleria lupulina contains antibacterial, antioxidants and immunomodulating phytochemical compounds that was effective for antibacterial, antioxidant and immunomodulatory properties. These may be used as synthetic drug.

HEPATOPROTECTIVE ROLE OF CISSUS QUADRANGULARIS ON LEAD ACETATE-INDUCED LIVER INJURY IN FEMALE WISTAR RATS

Objectives: Several heavy metals like lead acetate can accumulate in the body due to exposure to the metal for a prolonged period. One of the possible mechanisms involved with lead toxicity is oxidative stress is for which liver is the target organ. The primary aim of this study was to examine the hepatoprotective role of methanolic stem extract from the herb Cissus quadrangularis on induced lead acetate liver injury in female Wistar rats.Methods: The course of the study was for 14 days. The animals were separated into 5 groups: two being control and negative and the other 3 groups based on the dosage of the methanolic extract of the plant was given. The dosage of the plant extract given was once daily for all days of course study. During the last 7 days, lead acetate was injected in the animals (25 mg/kg of body weight). The sacrifice was done 14 days later and the blood and liver samples were taken, which is then used for different antioxidant enzymatic assays.Results: Significant reduced (p &lt; 0.05) antioxidant levels and increased lipid peroxidation levels were observed in lead acetate treated group which was ameliorated by the action of extract from Cissus quadrangularis fusiformis. Histopathological study also supported the finding.Conclusion: The results of the different antioxidant enzymatic assays supported the hepatoprotective role of methanolic stem extract of the plant Cissus quadrangularis over induced lead acetate injury in wistar female rats.