Antioxidant

Volvariella volvaceae is an edible mushroom occurring in both tropical and sub tropical regions of the world and is important for the prevention and treatment of various diseases. The physicochemical, phytochemical and antioxidant activity of hydroalcoholic lyophilized and oven dried extracts of Volvariella volvaceae were investigated. The total ash, water soluble, acid insoluble, alcohol soluble extractive, water soluble extractive, moisture content and fluorescence property of Volvariella volvaceae powder were evaluated. Phytochemical screening of lyophilized and oven dried extracts of Volvariella volvaceae were performed to check the presence of various phytoconstituents. The lyophilized and the oven dried extracts showed the presence of carbohydrates, glycosides, alkaloids, flavonoids, saponins and tannins. The protein was present in lyophilized extract; while steroid were absent in both extracts. The capacity of antioxidant property of the extracts was evaluated by using DPPH and Superoxide anion radical scavenging assay. Total phenolic and total flavonoid contents were estimated to quantify the presence of phenolic content in extracts. The lyophilized extract showed higher antioxidant activity compared to oven dried extract and thus, the outcomes of the present study suggest that the therapeutic activities of Volvariella volvaceae can be attributed to its antioxidant property.

The present study was designed to investigate the neuroprotective effect of a flavonoid Morin Hydrate in 3-nitropropionic acid induced model of Huntington's disease.3-Nitropropionic acid was used to induce symptoms similar to that of Huntington’s disease in male wistar rats. Rats were treated with Morin (50 mg/kg and 100 mg/kg) for 14 days. Body weight, brain weight, behavioural parameters, biochemical parameters were assessed and brain samples were sent for histopathology.3-nitropropionic acid administration for 14 days significantly induced symptoms such as reduced body weight, impaired gait, locomotor activity, muscle grip strength and also caused oxidative stress in striatum. The treatment with Morin 50 mg/kg was less effective as compared to that of Morin 100 mg/kg. Morin (100 mg/kg)showed slightly reduced oxidative stress as well as motor coordination deficits. Histopathology results also revealed reduced neuronal degeneration in Morin (100 mg/kg) samples as compared to Huntington control (HC) rats. This evidence suggest flavonoid Morin might have protective effect against 3-Np induced huntington’s disease or disease like symptoms, and further studies on higher doses are needed to explore the usefulness of flavonoid Morin in HD.

The study was aimed to determine antioxidant activity of methanolic extracts of both leaf and root of 12 nos. of therapeutically used mangrove species of Odisha coast using different antioxidant assays i.e., DPPH, FRAP and ‘Reducing Power’. Significantly higher DPPH radical scavenging effect was observed in leaf extracts of Heritierafomes (IC50=13µg/ml). However, in root extract, the activity was higher in Rhizophoraapiculata (IC50=17µg/ml). As far as total antioxidant content is concerned, Avicennia marina showed highest content i.e94.16±5.36 mg AEAC/g dry wt.in leaf sample and87.33±0 mg AEAC/g dry wt. in root sample. The highest FRAP value (4.75±0.08 mM AAE/g dry wt.)  in leaf samples was found in Cerberamanghas. Whereas, highest FRAP value (5.19±0.40 mM AAE/g dry wt.) in root extract was noted in Cynometrairipa. As regard to reducing power, Kandeliacandel showed highest activity e.g.,3.49±0.08 mg AAE/g dry wt. in leaf extracts among the studied species. In root extract, Aglaiacucullata exhibited highest reducing activity (3.35±0.01 mg AAE/g dry wt.). This study revealed that H. fomes, R. apiculata, A. marina, C. manghas, C. iripaand K. candelwere found to be good sources of natural antioxidants for pharmaceutical utilization.

To evaluate the preliminary phytochemical, antioxidant and anti-inflammatory activity of77 Anaphyllum wightii Schott. Bovine Serum Albumin denaturation inhibition assay was used for the evaluation of in-vitro anti-inflammatory activity and DPPH. Free radical scavenging and super oxide scavenging assays were used to assess the antioxidant activity of chloroform and aqueous extracts of the tubers of Anaphyllum wightii Schott. In anti-denaturation study, it was observed that chloroform extract showed greater percentage of inhibition of bovine serum albumin denaturation ie 49.2% whereas aqueous extract showed 38.4% at the 400µg/ml concentration respectively. In case of antioxidant screening also, chloroform extract showed better antioxidant power compared to aqueous extract dose dependently. Among the two extracts evaluated for anti-inflammatory and antioxidant activities chloroform extract of Anaphyllum wightii was found to possess significantly good anti-inflammatory and antioxidant activities and this can be attributed to the presence of alkaloids, saponins, flavonoids and phenolic compounds.

The aim of the current study was to assess the antioxidant potential, total phenolic and flavonoid contents of crude extracts of Artabotrys crassifolius. The leaves and barks of Artabotrys crassifolius were extracted sequentially with hexane, chloroform and ethanol. The corresponding crude extracts obtained were then subjected to TPC, TFC, ABTS, DPPH and FRAP assays. Among the extracts tested, ethanol extracts of barks and leaves showed promising radical scavenging activity which necessitates further isolation and characterisation of the bioactive compounds present in the respective extracts.

Clerodendrum indicum.(L.)Kuntze is commonly known as bharangi, roots and leaves are used in skin and digestive disorders by folk people. In Ayurvedic medicine same is used as cough and pitta suppressant. However, very less work is reported from this plant. The aim of the study in this paper was to evaluate its cytotoxic and antioxidant activity of leaf and bark extracts. Cytotoxic potential was explored using brine shrimp mortality assay and antioxidant potential of the extracts was explored using quantitative TLC based DPPH assay and Qualitative Radical scavenging DPPH assay. An attempt was made to isolate the active fraction of the plant from leaf extract. Out of four extracts   Methanol extracts of leaf (C.indicum) showed significant cytotoxic activity of 90% at the dose of 200µg/ml.  Maximum number of antioxidant bands were obtained in chloroform extract of the leaf sample. Methanol extract of leaf gave a flavonoids fraction which showed promising cytotoxic activity. Thus, study has provided lead and needs elaborate experimentation.

To evaluate the anti-inflammatory and antioxidant potential of methanol extract of flowers of Salvia officinalis Linn. (MESO). Antioxidant activity and free radical scavenging activity of MESO has been evaluated by employing various in vitro models including reducing power, Total antioxidant activity, DPPH radical, ABTS  radical, superoxide radical (O2• –), nitric oxide, hydrogen peroxide, hydroxyl radical scavenging activity and metal chelating activity. Anti-inflammatory activity has been evaluated by carrageenan induced rat paw edema animal model. The plant extract (MESO) revealed significant antioxidant activity with lower IC50 values. Metal chelating activity was found poor. In inflammation model, MESO demonstrated significant anti-inflammatory activity with maximum oedema inhibition at 3 rd hour post carrageenan injection. The results indicated that the plant could be a potential source of antioxidant and could find a use in the herbal therapy of inflammation also.

Liver harm is most vital health issues or so a lot of than 900 medicines involved in case of liver injury. World health organization estimate that eightieth of total population used herbal drugs for some characteristic of primary health care while not any facet effects. Herbal medicine has emerged as a skilled approach with sensible values in handling various diseases, developing an affordable phytotherapy to treat severe liver diseases needs economical exploration of properties like antiviral action, antihepatotoxicity, stimulation of liver regeneration besides choleretic activity. The search used

The crude methanol extract of leaf of Tiliacora acuminata Miers as well as organic solvent (n-hexane, carbon tetrachloride and chloroform) fractions and methanolic fraction (aqueous) were subjected to screening for total phenolic content, antioxidant, cytotoxic, thrombolytic and antimicrobial activity. In total phenolic content analysis, the n-hexane soluble fraction of leaf was found to contain highest amount of phenolic content (TPC, 132.18 mg/gm of dry weight of extract, expressed as gallic acid equivalents). In the DPPH assay, the n-hexane soluble fraction of leaf displayed the highest free radical scavenging activity with IC50 value 64.54 μg/ml as compared to 27.5 μg/ml produced by butylated hydroxyl toluene.  A positive correlation was evident between total phenolic content and free radical scavenging activity of T. acuminata having correlation coefficient (R2) of 0.91. In cytotoxicity screening, the crude methanol extract of leaf demonstrated strong cytotoxic activity with LC50 value of 2.40 μg/ml as compared to 0.451 μg/ml produced by vincristine sulphate. During assay for thrombolytic activity, the crude methanol extract revealed 32.5% lysis of clot while standard streptokinase and water, used as positive and negative controls, demonstrated 70.4% and 3.62% lysis of clot, respectively. In antimicrobial assay by disc diffusion method, all the samples exhibited moderate to significant antimicrobial activity (zone of inhibition = 10.0-20.0 mm) against all the test organisms. Among all the samples, the carbon tetrachloride soluble fraction displayed strong antimicrobial activity against Escherichia coli (20.0 mm).

In indigenous/traditional systems of medicine, the drugs are primarily dispensed as water decoction or ethanolic extract. Fresh plant parts, juice or crude powder are a rarity rather than a rule.  Total Phenolic content in the extracts measured as gallic equivalent in Ashwagandha (methanolic)  43.77 ± 1.7, aqueous = 42.52 ± 0.8, activity of Trolox by ABTS method IC50 value 428.38 ± 1.90 µg /ml, Total Antioxidant activity by ABTS method in Ashwagandha (methanolic) IC50 Value is 28.353 ± 0.269 mg/ml in  aqueous 32.547 ± 0.532 mg/ml , Free radical scavenging capacity by DPPH in Ashwagandha (methanolic) IC50 Value 2.9  ± 0.09 mg/ml  in aqueous 3.27 ± 0.05 mg/ml. The medicinal plant examined in this study has long been used in Indian traditional medicine, Ayurveda as well as many other traditional drug practices of the rest of the world. Withania somnifera, known as ‘Ashwagandha’, has been an important herb in the Ayurvedic and indigenous medical systems for centuries in India.