Showing 181 - 200 results of 483 for search '"free radical"', query time: 0.10s Refine Results
  1. 181

    Evaluation of Ethnopharmacological and Antioxidant Potential of Zanthoxylum armatum DC. by Rabia Kanwal, Muhammad Arshad, Yamin Bibi, Saira Asif, Sunbal Khalil Chaudhari

    Published 2015-01-01
    “…The results indicated that the free radical scavenging activity ranged from 40.12% to 78.39%, and the reductive potential ranged from 0.265 nm to 1.411 nm while the total antioxidant activity ranged from 0.124 nm to 0.183 nm. …”
    Get full text
    Article
  2. 182

    Assessment of Antioxidant and Cytotoxicity Activities of Saponin and Crude Extracts of Chlorophytum borivilianum by Mehdi Farshad Ashraf, Maheran Abd Aziz, Johnson Stanslas, Ismanizan Ismail, Mihdzar Abdul Kadir

    Published 2013-01-01
    “…Crude extract was found to possess higher free radical scavenging activity (ascorbic acid equivalents 2578 ± 111 mg AA/100 g) and bleaching activity (IC50 = 0.7 mg mL−1), while total saponin fraction displayed higher ferrous ion chelating (EC50 = 1 mg mL−1). …”
    Get full text
    Article
  3. 183

    Antioxidant Properties and Characterization of Heterotrigona itama Honey from Various Botanical Origins according to Their Polyphenol Compounds by Sharina Shamsudin, Jinap Selamat, Mukramah Abdul Shomad, Muhamad Faris Ab Aziz, Md. Jahurul Haque Akanda

    Published 2022-01-01
    “…The total phenolic content (TPC), total flavonoids content (TFC), free radical scavenging activity (IC50), and ferric reducing antioxidant power (FRAP) of H. itama were ranged between 52.64 and 74.72 mg GAE/100 g honey, 10.70–25.71 mg QE/100 g honey, 11.27–24.09 mg/mL, and 77.88–164.88 µmol FeSO4.7H2O/100 g honey, respectively. …”
    Get full text
    Article
  4. 184

    Synthesis and Characterisation of Copper(II) Complexes with Tridentate NNO Functionalized Ligand: Density Function Theory Study, DNA Binding Mechanism, Optical Properties, and Biol... by Madhumita Hazra, Tanushree Dolai, Akhil Pandey, Subrata Kumar Dey, Animesh Patra

    Published 2014-01-01
    “…Moreover, the antioxidant study of the ligand and complexes is evaluated by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) free-radical assays, which demonstrate that the complexes are of higher antioxidant activity than free ligand.…”
    Get full text
    Article
  5. 185

    Investigation of the Effects of Different Hydrophilic and Hydrophobic Comonomers on the Volume Phase Transition Temperatures and Thermal Properties of N-Isopropylacrylamide-Based H... by Ahmet Okudan, Abdullah Altay

    Published 2019-01-01
    “…Temperature-sensitive, random cross-linked terpolymers of NIPA were prepared from methyl methacrylate (MMA), N-tert-butylacrylamide (NTBA), and acrylic acid (AA) using a free radical polymerization method. In the synthesis of terpolymer hydrogels, N,N-methylene bisacrylamide (BIS) was used as cross-linkers and ammonium persulfate (APS) as initiator. …”
    Get full text
    Article
  6. 186

    Proanthocyanidin from Grape Seed Extracts Protects Indomethacin-Induced Small Intestinal Mucosal Injury by Dae Young Cheung, Jin Il Kim, Soo-Heon Park, Jae Kwang Kim

    Published 2014-01-01
    “…Proanthocyanidin (grape seed proanthocyanidin extracts, GSPEs) is an antioxidant and scavenges free radicals. Excessive oxidative stress and free radical production are major components in the pathogenesis of NSAID-induced small intestinal injury. …”
    Get full text
    Article
  7. 187

    Effect of Thermal Processing on Physicochemical and Antioxidant Properties of Raw and Cooked Moringa oleifera Lam. Pods by Abdur Razzak, Keya Rani Roy, Ummay Sadia, Wahidu Zzaman

    Published 2022-01-01
    “…The values for total phenol content, total flavonoid content, vitamin C, DPPH free radical scavenging activity, and β-carotene were 28.13 mg, 2.98 mg, 38.23%, 3.98 mg, and 0.12 mg, respectively, in raw samples whereas 24.56 mg, 2.72 mg, 3.50 mg, 34.32%, and 0.0904 mg, respectively, in thermally-processed samples. …”
    Get full text
    Article
  8. 188

    Redox Metabolism and Autonomic Regulation During Aging: Can Heart Rate Variability Be Used to Monitor Healthy Longevity? by Olha Yelisyeyeva, Danylo Kaminskyy, Marta Semen, Ilona Chelpanova, Khrystyna O. Semen

    Published 2025-01-01
    “…Excessive activation of free radical reactions accompanied by the inability of the antioxidant defense (AOD) mechanisms to control the flow of the reactive oxygen species (ROS) leads to the persistence of oxidative stress, hypoxia, impaired mitochondrial energy function and reduced ATP potential. …”
    Get full text
    Article
  9. 189

    Chemical Composition and Antibacterial and Antioxidant Activities of Stem Bark Essential Oil and Extracts of Solanecio gigas by Mequanint Molla Yitayeh, Amanu Monie Wassihun

    Published 2022-01-01
    “…The EO and methanolic extract had free radical scavenging activities with IC50 value, 13.8 ± 0.48 and 4.2 ± 0.04 μg/ml, respectively. …”
    Get full text
    Article
  10. 190

    In Vitro Experimental Assessment of Ethanolic Extract of Moringa oleifera Leaves as an α-Amylase and α-Lipase Inhibitor by Adebanke Ogundipe, Babatunde Adetuyi, Franklyn Iheagwam, Keleko Adefoyeke, Joseph Olugbuyiro, Oluseyi Ogunlana, Olubanke Ogunlana

    Published 2022-01-01
    “…Diphenyl-2-picrylhydrazyl (DPPH), ABTS (2,2′-azino-bis (ethylbenzothiazoline-6-sulfonic acid)), and nitric oxide (NO) assays showed the extract to have a strong free radical scavenging activity. The 50% inhibitory concentration (IC50) values of the lipase and amylase activities of the extract are 1.0877 mg/mL and 0.1802 mg/mL, respectively. …”
    Get full text
    Article
  11. 191

    Determination of Total Phenolics, Flavonoids, and Antioxidant Activity and GC-MS Analysis of Malaysian Stingless Bee Propolis Water Extracts by Sharifah Nur Amalina Syed Salleh, Nur Ayuni Mohd Hanapiah, Hafandi Ahmad, Wan Lutfi Wan Johari, Nurul Huda Osman, Mohd Razif Mamat

    Published 2021-01-01
    “…Total phenolic and flavonoid contents were evaluated using Folin–Ciocalteu colorimetric and aluminium chloride methods, respectively, while the antioxidant activity was analysed using 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging assay. Results indicated that H. fimbriata extracts exhibit the highest TPC, TFC, and antiradical activity among all samples tested. …”
    Get full text
    Article
  12. 192

    Stigmas and Petals of Crocus sativus L. (Taliouine, Morocco): Comparative Evaluation of Their Phenolic Compounds, Antioxidant, and Antibacterial Activities by Asmaa Benkerroum, Khadija Oubella, Soukaina Zini, Kaoutar Boussif, Hind Mouhanni, Fouad Achemchem

    Published 2024-01-01
    “…The polyphenol content was measured using the Folin–Ciocalteu method, the antioxidant activity was determined using the DPPH free radical scavenging method, and the well-diffusion method was used to assess antibacterial activity against seven pathogenic bacterial strains (Bacillus subtilis, Escherichia coli, Listeria monocytogenes, Proteus vulgaris, Pseudomonas aeruginosa, Salmonella enterica, and Staphylococcus aureus). …”
    Get full text
    Article
  13. 193

    Potential Health Implications of the Consumption of Thermally-Oxidized Cooking Oils – a Review by Falade Ayodeji Osmund, Oboh Ganiyu, Okoh Anthony Ifeanyi

    Published 2017-06-01
    “…Therefore, thermal oxidation seems not to provide any health benefit, as it deteriorates cooking oils and the consumption of the oils may predispose consumers to various disease conditions that may ensue from free radical generation, thereby having deleterious effect on human health.…”
    Get full text
    Article
  14. 194

    Effect of Enzyme-Assisted Vinification on Wine Phenolics, Colour Components, and Antioxidant Capacity by Ivana Generalić Mekinić, Živko Skračić, Ana Kokeza, Barbara Soldo, Ivica Ljubenkov, Mara Banović, Vida Šimat, Danijela Skroza

    Published 2020-03-01
    “…Spectrophotometry was used for determination of total phenolics, anthocyanins, and wine colour parameters (intensity, hue, and chromatic structure); the individual phenolics were detected using HPLC; while reducing and free radical scavenging activities of the samples were analysed using the FRAP and DPPH assays. …”
    Get full text
    Article
  15. 195

    Jus Punica Granatum Memulihkan Motilitas Spermatozoa Tikus Putih Pada Kondisi Stres Oksidatif by Putu Oky Ari Tania, Emilia Devi D. Rianti, Indra Firismanda Dermawan, Nur Sri Wahyuni

    Published 2018-11-01
    “…Fast food consumption including used of repeated heating-oil, causing various of health problems, especially the formation of free radicals characterized by elevated MDA levels. Pomegranates have many therapeutic functions, especially as antioxidants that scavenges free radical of oxidative stress thus improving the quality of spermatozoa. …”
    Get full text
    Article
  16. 196

    The Role of Antioxidant Activity of Chitosan-Pinus merkusii Extract Nanoparticle in against Lead Acetate-Induced Toxicity in Rat Pancreas by G. Wardani, Ernawati, K. Eraiko, S. A. Sudjarwo

    Published 2019-01-01
    “…It could be concluded that Chitosan-Pinus merkusii nanoparticle has a potential to be a powerful agent and may be useful as an antioxidant against free radical-induced oxidative stress and pancreatic cell damage mediated by lead acetate intoxication.…”
    Get full text
    Article
  17. 197

    Comparison of Antioxidant Properties of Fruit from Some Cultivated Varieties and Hybrids of <i>Rubus idaeus</i> and <i>Rubus occidentalis</i> by Natalia Adamczuk, Mirosława Krauze-Baranowska, Justyna Ośko, Małgorzata Grembecka, Piotr Migas

    Published 2025-01-01
    “…Crossbreeding species/cultivars of the <i>Rubus</i> genus may result in an increased content of anthocyanins, but on the other hand, it may lead to a reduction in free radical scavenging activity in the ABTS and DPPH. …”
    Get full text
    Article
  18. 198

    Antioxidant, Antimicrobial, and Protein Kinase Inhibition Profiling of C. ambrosioides Seed Extracts along with RP-HPLC by Saira Bano, Muhammad Waleed Baig, Mohammad K. Okla, Syeda Saniya Zahra, Nosheen Akhtar, Wahidah H. Al-Qahtani, Hamada AbdElgawad, Ihsan-Ul Haq

    Published 2022-01-01
    “…Methanol extract exhibited highest ascorbic acid equivalent (AAE) free radical (DPPH) scavenging (IC50 of 110.7±5 μg/ml), total antioxidant capacity (110.6±2.2 μg AAE/mg), and total reducing power (94.30±0.46 μg AAE/mg). …”
    Get full text
    Article
  19. 199

    The Addition of Opuntia ficus-indica Ethanolic Extract to a Skimmed Milk-Based Extender Impacts Ram Sperm Quality by Larbi Allai, Xavier Druart, Pinar Terzioğlu, Noureddine Louanjli, Boubker Nasser, Mehmet Ozturk, Bouchra El Amiri

    Published 2023-01-01
    “…The antioxidant activity of ETHEX was studied using free radical 1, 1-diphenyl-2-picrylhydrazyl (DPPH•) assay. …”
    Get full text
    Article
  20. 200

    A comparative dataset on the GC–MS analysis and antioxidant activity of Selaginella bryopteris from different geolocations of IndiaMendeley Data by Utkarsha Srivastava, Ashwani Mathur

    Published 2025-04-01
    “…The comparative antioxidant assessment of the extracts from all three geolocations was undertaken by three different methods of free radical scavenging activity by DPPH assay, FRAP assay and total antioxidant capacity determination by Phosphomolybdate assay. …”
    Get full text
    Article