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18 articles for “DPPH free radical”
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Free radical scavenging effect of various extracts of Root of Shirisha (Albizia lebbeck (L.)Benth.) by DPPH method
Abstract: The study of antioxidants and free radicals in biology is producing medical revolution that promises a new age disease and health management. The present study was performed to evaluate the in vitro antioxidant effect of the methanol, ethyl acetate, hydro alcohol and water extracts of Albizia lebbeck (L.) Benth. by using DPPH method. The ethyl acetate extract exhibited significant inhibition in DPPH free radical formation with IC50 values of 70.5206. …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 10, Issue 3, 2019 · pp. 12–16 Read article
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In vitro Antioxidant Activity of Calotropis Procera
Abstract: Antioxidant activity of root of Calotropis procera extract was evaluated in a series of in vitro assay involving free radicals. IC50 values were determined. Extracts of I. coccinea exhibited scavenging effect in concentration dependent manner in all in vitro method. IC50 of ethyl acetate extract was 48.43, 75.811 and 60.60 μg/ml for 2,2-diphenylpicrylhydrazyl radical scavenging, hydrogen peroxide scavenging, and nitric oxide scavenging, respectively. Ethyl acetate extract shows good in vitro …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 4, Issue 2, 2014 · pp. 11–14 Read article
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Comparative Exploration of Medicinal and Photosynthetic Occurrences of Coriandrum sativum, Menthapiperita and Spinacia oleracea
Abstract: AbstractPlants form a large group of valuable materials like medicines, alkaloids, flavonoids, carotenes, and chlorophylls. To evaluate these activities leaves of three plant samples i.e., Coriandrum sativum, Mentha piperita and Spinacia oleracea were used in this study and two organic solvents i.e., acetone and ethanol were used to extract the antibacterials and antioxidants from plant samples. Total flavonoid content, total phenolic content and 1,1-Diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging methods were …
Published in Research & Reviews : Journal of Herbal Science · Vol. 2, Issue 3, 2013 · pp. 15–23 Read article
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Lasiosiphon glaucus: Preliminary Phytochemical Screening, Antioxidant Activity and Anti-inflammatory Activity of Ethnomedicinal Plant
Abstract: An important ethnobotanical medicinal plant Lasiosiphon glaucus was evaluated for its antioxidant and anti-inflammatory potentials. The plant showed significant antioxidant activity as evaluated by DPPH free radical scavenging activity (IC50 100 µg/ml) and ABTS radical scavenging activity (IC50 96 µg/ml) and Total antioxidant activity of 33 mg/g ascorbic acid equivalent. The plant has a total phenol content of 8.7 mg/g gallic acid equivalent. It is evident form HRBC membrane destabilisation …
Published in Research & Reviews : Journal of Herbal Science · Vol. 7, Issue 1, 2018 · pp. 1–7 Read article
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Comparative Phytochemical Composition and Antioxidant Activities of Mangifera indica and Mucuna urens Seeds
Abstract: ABSTRACTThis study was carried out to evaluate and compare the phytochemical composition and antioxidant activities of Mangifera indica and Mucuna urens seeds, with a view to elucidating the phytochemical basis for their medicinal uses, and their nutraceutical potentials as soup thickeners. Of the two seeds, M. indica had significantly higher (ρ < 0.05) total phenol, tannin, total flavonoid and total saponin contents than M. urens on dry weight basis. Conversely, …
Published in Research & Reviews : Journal of Herbal Science · Vol. 1, Issue 2, 2012 · pp. 15–24 Read article
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In vitro and in vivo Anti-Oxidant and Anti-Diabetic Evaluation of cladodes Crude Extract and Solvent fractions of Opuntia elatior mill (Cactaceae)
Abstract: Objective: Ariel part of Opuntia elatior (Cactaceae) has been used in folklare remedies to treat diabetes in America, Mexico and India. However, the anti-diabetic potential of cladodes of this medicinal plant is not scientifically validated and authenticated. The present study aimed to evaluate in vitro and in vivo anti-oxidant and anti-diabetic potential of methanol extracts and solvent fractions of O. elatior cladodes. Methods: Phytochemical analysis performed according to standard procedure. …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 12, Issue 2, 2025 · pp. 77–88 Read article
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Therapeutic Prospects and Comparative Bioactive Evaluation of Fenugreek Seed Extracts
Abstract: A medicinal plant with substantial therapeutic potential, fenugreek (Trigonella foenum-graecum L.) is rich in bioactive phytoconstituents. The phytochemical makeup and antioxidant properties of aqueous and methanolic fenugreek seed extracts were compared in this study. Phenolics, flavonoids, terpenoids, alkaloids, tannins, and saponins were found in both extracts, with the methanolic fraction showing greater intensity, according to preliminary phytochemical screening. The methanolic extract has higher levels of phenolic, flavonoid, and terpenoid content, …
Published in Research & Reviews : Journal of Botany · Vol. 15, Issue 2, 2026 · pp. 64–75 Read article
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Comparative Evaluation of In Vitro Antioxidant Activity of Bark, Flowers and Fruit Extracts of Pongamia pinnata
Abstract: In Indian history, the use of herbal remedies for various diseases has proved its efficacy. Free radicals are the main cause of disease such as diabetes, hypertension, inflammation, etc. The various parts of plant Pongamia pinnata possess good antioxidant activities. The objective of the study was to determine free radical scavenging activity of various plant parts by in vitro free radical scavenging assay such as DPPH assay, ABTS radical decolorization …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 2, Issue 2, 2015 · pp. 14–21 Read article
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Regional Variation in Amino Acid Composition, Antioxidant and Antimicrobial Activity of Tasar Sericin from North and South Bihar
Abstract: This study investigates geographical differences in biochemical and functional characteristics of sericin obtained from Antheraea mylitta cocoons sourced from two regions of Bihar, India: Bhagalpur (North) and Banka (South). Sericin was isolated via an alkali-assisted autoclaving process. Amino acid profiles were determined using HPLC. Free radical scavenging capacity was measured through DPPH, ABTS, and hydrogen peroxide assays. Antibacterial and antifungal effects were tested against Staphylococcus aureus, Escherichia coli, and Candida …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 16, Issue 2, 2026 Read article
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Regional Variation in Amino Acid Composition, Antioxidant and Antimicrobial Activity of Tasar Sericin from North and South Bihar
Abstract: This study investigates geographical differences in biochemical and functional characteristics of sericin obtained from Antheraea mylitta cocoons sourced from two regions of Bihar, India: Bhagalpur (North) and Banka (South). Sericin was isolated via an alkali-assisted autoclaving process. Amino acid profiles were determined using HPLC. Free radical scavenging capacity was measured through DPPH, ABTS, and hydrogen peroxide assays. Antibacterial and antifungal effects were tested against Staphylococcus aureus, Escherichia coli, and Candida …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 16, Issue 2, 2026 · pp. 1–10 Read article
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Anti-Inflammatory Activity of Stem Bark of Homalium Zeylanicum Benth On Wistar Rats
Abstract: Due to the adverse effects of anti-inflammatory and anti-arthritic drugs, which are currently in clinical use, a need arises to develop newer anti-inflammatory and anti-arthritic agents with less side effects. The investigations of the efficacy of plant-based drugs used in the traditional medicine have evidenced great interest owing to their lesser side effects. In this context the present study was conceptualized to evaluate antioxidant and anti-inflammatory activity of Homalium zeylanicum …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 4, Issue 1, 2017 · pp. 39–50 Read article
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Exploring the Bioactive Potential of Himalayan Lichens: Phytochemical and Antimicrobial Profiling of Xanthoparmelia tinctina and Pyxine subcinerea Extracts
Abstract: The symbiotic association that develops between cyanobacteria, algae, and fungi results in the composite organism known as lichens, which has traits similar to those of plants but differs in its separate parent organisms. Lichens can have a variety of morphological characteristics, including foliose structures that resemble flat leaves, crustose structures that resemble flake crystals, fruticose branches that have short, leafless branches, and leprose-powder-like appearances. Due to their therapeutic potential, lichens …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 14, Issue 2, 2024 · pp. 21–28 Read article
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In Vivo and In Vitro Antioxidative Efficacy of Naringenin on Cadmium -Induced Toxicity in Rats
Abstract: The aim of the study was to investigate the in vivo circulating antioxidants level such as vitamin C, vitamin E and GSH in Cadmium (Cd) induced toxic rats and the protective efficacy of naringenin via in vitro free radical scavenging assays. In this investigation cadmium chloride (5 mg/kg body weight (b.w) was administered orally (p.o) for 28 days to induce toxicity. Naringenin was pre-administered orally (50 mg/kg body weight) for …
Published in Research and Reviews: A Journal of Toxicology · Vol. 3, Issue 3, 2013 · pp. 9–16 Read article
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Green Synthesis and Characterization of Silver Nanoparticle using Leaves of Lawsonia inermis: Antibacterial, Antifungal and Anti-Oxidant Activity
Abstract: Nanotechnology is one of the fastest developing sciences over the past few years. This is an emerging field of modern research dealing with synthesis and designing of particle structure ranging from approximately 1–100 nm. Silver nanoparticles (AgNPs) are known for their tremendous applications in the field of therapeutics and diagnosis. In the present study, we have confirmed that the antibacterial, antifungal and anti-oxidant activity of biosynthesized AgNPs which were synthesized …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 6, Issue 1, 2016 · pp. 11–23 Read article
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Preliminary Phytochemical Screening, Antioxidant and antibacterial activity of Helicteres isora leaf extracts.
Abstract: Objective: To evaluate phytochemical screening, Anti-oxidant and anti-bacterial activity of Helicteres isora leaf extracts. Methods: Petroleum ether, chloroform, acetone, ethanol and hydroalcoholic extracts of leaves were used for the phytochemical screening. Anti-oxidant activity was measured using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) and nitric oxide (No) radical scavenging tests; antibacterial activity was assessed using disc diffusion techniques. Results: The percentage yields for the petroleum ether, chloroform, acetone, ethanol and the hydroalcoholic extract were …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 13, Issue 2, 2022 · pp. 11–17 Read article
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Optimization of Dry Basella rubra Leaf Powder in Nachos Preparation and Studying its Antioxidant Potential
Abstract: Basellaceae family (Malabar spinach) is a perennial vine native to tropical Asia. There are two main species of Malabar spinach; Basella alba, which has green stem and thick fleshy leaves and Basella rubra which has red stem. The objective of the study was to investigate the effect of addition of dry Basella rubra leaf powder. Nachos that contained 5 gm% of dry Basella rubra leaf powder had highest overall-acceptability score …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 9, Issue 2, 2019 · pp. 56–62 Read article
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Biochemical Assays of Crude and Purified Oxycarotenoid Extracts Isolated from Coriander Leaves and their Effect on Oxidative Stability of Oils by Rancimat Assay
Abstract: Antioxidants are important substances in the fight against the damage done by free radicals that are produced by oxidative stress. Antioxidants are available in various forms as dietary supplements/synthetic forms. Because of their toxicity and side effects, the extensive use of many of these synthetic antioxidants is ruled out. Most nutritionist agrees that, the natural food is the best source of antioxidants. Dietary antioxidants have the ability to scavenge free …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 8, Issue 1, 2018 · pp. 1–10 Read article
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Comparative Analysis of Antioxidant and Antimicrobial Properties of Tasar Sericin from Different Ecological Regions of India
Abstract: Sericin is a by-product of the silk industry, has gained attention for its bioactive properties, and ability to scavenge free radicals for protecting cells from oxidative damage, and different climatic conditions may influence the biochemical properties of the sericin. Thus, the present study aims to evaluate the antioxidant and antimicrobial properties of tasar sericin extracted from silkworms reared in diverse ecological regions of India. South Bihar, Jharkhand, Chhattisgarh, and Odisha …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 15, Issue 1, 2025 · pp. 70–76 Read article