Search results for “Antioxidant potential

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7 articles
Antioxidant Activity Open Access

Effect of pH on Phytochemical and Antioxidant Potential of Satawar Tubers (Asparagus Racemosus Willd.)

Nov 2021 DOI 10.14302/issn.2471-2140.jaa-21-3996
Singh SushilaCorresponding author Department of Chemistry, CCS Haryana Agricultural University, Hisar, Haryana, India.

Plants are an important source of medicines since ancient times. The traditional system medicine’s use a variety of native plants to diagnose, prevent, and eliminate acute and chronic diseases.Asparagus racemosus(Willd.), also have been widely used for medicinal purpose and its extensively distributed in the tropics and subtropics of India, commonly known as Satawar, belongs to the family Asparagus. The purpose of this was to identify the phytochemicals and to assess the antioxidant potential in aqueous extracts prepared at different pH levels of Satawar tubers. The maximum amount of phenolics and flavonoids content was present at pH 9 i.e.18.88mg GAE/g and 2.83mg CE/g. The total antioxidant capacity was highest at pH 2 (15.96mg AAE/g) and IC50 values of DPPH free radical scavenging activity was the lowest at pH 7, 2582.85µg/mL. According to the whole study, this plant is a very good source of phytochemicals and acts as a powerful antioxidant.

Antioxidant Activity Open Access

Methionine and Antioxidant Potential

Dec 2016 DOI 10.14302/issn.2471-2140.jaa-16-1378
Yin JieCorresponding author Institute of Subtropical Agriculture & Chinese Academy of Sciences, Changsha, Hunan 410125, China;

Methionine (Met) is a nutritionally essential amino acid and has been widely demonstrated to improve cellular oxidative balance and mediate oxidative stress. Met targets reactive oxygen species (ROS) directly by being oxidized to Met sulfoxide (MetO) 1. Met can be metabolized to cysteine (Cys) through transsulfuration pathway, which is further metabolized to glutathione (GSH), taurine, and hydrogen sulfide (H2S). All these metabolites exhibit antioxidant functions in various models (reviewed at 2). More recently, Met also has been demonstrated to enhance cellular oxidative tolerance via pentose phosphate pathway (PPP) 3, which contributes to the balance of cellular reducing power and accelerates the reduction reaction of MetO and GSH oxidative product GSSH back to Met and GSH.

Antioxidant Activity Open Access

Evaluation of Anti-oxidation and Therapeutic Effect of Biofield Energy Healing Based Novel Test Formulation Using TNBS (Tri Nitro Benzene Sulfonic Acid) - Induced Ulcerative Colitis in Sprague Dawley Rats

Feb 2021 DOI 10.14302/issn.2471-2140.jaa-21-3704
Jana SnehasisCorresponding author Trivedi Science Research Laboratory Pvt. Ltd., Thane (W), Maharashtra, India.

The aim of the study was to evaluate the antioxidant potential of Biofield Energy Healing (the Trivedi Effect®) based test formulation using TNBS-induced colitis animal model. Each ingredient of the test formulation was divided into two parts. One part was denoted as the control without any Biofield Energy Treatment, while the other part was treated with Biofield Energy Treatment by Mr. Mahendra Kumar Trivedi and defined as the Biofield Energy Treated test formulation. The colon tissue was used for the estimation of anti-oxidation activity for catalase (CAT), glutathione (GSH), lipid peroxidation (LPO) product, myeloperoxidase (MPO), superoxide dismutase (SOD), and glutathione peroxidase (GPx) using standard procedure. The antioxidant results showed that the CAT level was significantly increased by 95.4% (p≤0.001), 72.3%, 47.6%, and 13.9% in the Biofield Energy Treated test formulation (G5), Biofield treatment per se to animals (-15 days)(G6), Biofield Energy Treatment per se to animals plus Biofield Energy Treated test formulation (-15 day) (G8), and Biofield Energy Treatment per se to animals plus untreated test formulation (G9) groups, respectively as compared to the untreated test formulation group (G4). Further, colon GSH activity was found to be significantly increased by 23.2% (p≤0.05) 15.4%, and 15.5%, in G5, G6, and G9 groups, respectively with respect to G2 group. In addition, colon LPO activity data suggested that it was decreased by 12%, 17%, 18%, and 19.1% in G5, G6, Biofield Energy Treated test formulation (-15 day) (G7), and G8 groups, respectively, as compared with the G2 group. The level of MPO showed a significant (p≤0.001) reduced level by 27.9%, 22%, 14.5%, 16.6%, and 25.3% in G5, G6, G7, G8, and G9 groups, respectively as compared with the G2 group. The level of colon SOD was increased by 16.7% and 14.2% in the G5 and G9 groups, respectively as compared with the untreated test formulation, G4 group. Colon GPx level was increased by 177.6%, 71.4%, 71.4%, 161.2%, and 114.3% in G5, G6, G7, G8, and G9 groups, respectively as compared with the G2 group. Thus, it can be concluded that the Trivedi Effect®-Consciousness Energy Healing based test formulation and Biofield Energy per se has significant colon anti-oxidation profile, which can be used to improve many autoimmune and inflammatory diseases, stress management and prevention, and anti-aging by improving overall health.

Daily Grape Juice Consumption Promotes Weight Loss, Improved Stability and Reduced the DNA Damage in the Elderly

Jul 2020 DOI 10.14302/issn.2379-7835.ijn-20-3448
Dani CarolineCorresponding author Laboratório de Bioquímica, Centro Universitário Metodista – IPA, Porto Alegre/ RS, Brazil.

The aim of this study was to determine the influence of chronic supplementation with grape juice (400ml), in modulating the anthropometric and biochemical parameters. Thirty-nine seniors participated and were evaluated at baseline after 30 days. The chronic consumption of grape juice reduced weight, BMI and waist circumference. Indeed, the consumption modulated biochemical parameters, decreased the total cholesterol levels, Low-density lipoprotein (LDL) cholesterol, Urea and GGT. In addition, the intake of juice improved the performance in the TUG test, and caused more stability in the elderly. The levels of protein oxidation declined and the antioxidant potential significantly increased as well as SOD and the ratio SOD / CAT. In contrast, levels reduced sulfhydryl groups to consumption. In nuclear changes there are  a decrease in the frequency of MN and picnosis. In conclusion, grape juice could be an excellent option to improve quality of life in elderly.

Antioxidant Activity Open Access

Antioxidative Potential of Consciousness Energy Healing Treatment on HepG2 Cells and DMEM after Oxidative Stress Induced by Hydrogen Peroxide

Oct 2018 DOI 10.14302/issn.2471-2140.jaa-18-2400
Jana SnehasisCorresponding author Trivedi Science Research Laboratory Pvt. Ltd.,Bhopal, India

Antioxidants can reduce oxidative stress in cells is used for the treatment of several disorders such as cancer, cardiovascular, and inflammatory diseases. The present study was evaluated the antioxidant potential of the Consciousness Energy Healing (The Trivedi Effect®) Treated human hepatoma cell line (HepG2) and Dulbecco's Modified Eagle Medium (DMEM) for the assessment of cell viability under hydrogen peroxide-induced oxidative stress. The Biofield Energy Treated HepG2 cells group was maintained for 23 days under standard conditions. On the next day, the cells were challenged with 1 mM of H2O2 for the generation of oxidative stress. The ability of the Biofield Energy Healing Treatment to protect from the oxidative stress was determined by MTT cell viability assay and compared with the negative control group. The percentage of cell viability was significantly (p≤0.001) increased by 13.6% in the Biofield Energy Treated DMEM group; while altered by 3.2% in the Biofield Energy Treated HepG2 cells group compared to the negative control groussp. Overall, the Biofield Energy Treated DMEM showed a better antioxidative protection against oxidative stress than HepG2 cells group, which was induced by H2O2. Therefore, the results envisaged that The Trivedi Effect®- Biofield Energy Healing Treatment has an impact on the protection of various vital organs from oxidative stress; which might be helpful in the development of powerful/energized growth medium for the accelerated study with a cost-effective manner.

Antioxidant Activity Open Access

New Antioxidant Flavonoids from the Aerial Parts of Secamone Afzelii

Feb 2016 DOI 10.14302/issn.2471-2140.jaa-15-887
Alabdul Magid AbdulmagidCorresponding author ICMR-UMR CNRS 7312, Groupe Isolement et Structure, Campus Sciences, Bât. 18, BP 1039, 51687 Reims Cedex 2, France

A bioassay-guided fractionation of petroleum ether, EtOAc and n-BuOH soluble parts of the 80% hydromethanol extract was performed to investigate the antioxidant activity of Secamoneafzeliiaerial parts using DPPH free radical scavenging assay. The results revealed that EtOAc and n-BuOH soluble parts have moderate to good DPPH radical scavenging activity (EC50 = 139.3 and 30.5 μg/mL, respectively). Therefore, from the most active fractions of EtOAc and n-BuOH soluble parts were isolated two new flavonoid diglycosides quercetin-3-O-β-d-apiofuranosyl-(1→2)-α-l-rhamnopyranoside and genkwanin-8-C-β-d-apiofuranosyl-(1→2)-β-d-glucopyranoside in addition to nine known compounds (2-10). Their structures were elucidated on the basis of spectroscopic data including 1D- and 2D-NMR and ESI-MS. The ability of the isolated compounds to scavenge the DPPH was evaluated. The new compound 1, quercitrin (3) and rutin (6) have antioxidant potential with EC50 values ranging from 8.4 to 13.6 µg/mL, compared to the standard ascorbic acid (EC50 7.4 µg/mL).

Antioxidant Activity Open Access

The Total Antioxidant Capacity of Foods: A Reappraisal. Application to Commercial Orange Juices

Dec 2015 DOI 10.14302/issn.2471-2140.jaa-15-715
Kevers ClaireCorresponding author Plant Molecular Biology and Biotechnology and CEDEVIT B22, University of Liège Chemin de la Vallée, 4, Sart Tilman, 4000 Liège Belgium

Since a few years, more and more attention has been specifically given to dietary antioxidants as agents promoting health and preventing the incidence of diseases. As part of these efforts, analytical methods and assays have been developed to measure the antioxidant content in food substances. In this paper, the antioxidant capacity of 17 orange juices is determined by various assays (DPPH, ORAC, heamolysis, xanthine/xanthine oxidase) as the content in ascorbic acid and total phenolics. The results evidence all the complexity to evaluate the in vitro antioxidant capacity of foods. In very general terms, in spite of the wide utilization in these tests (FRAP, TAC, ORAC TRAP and others), their significance remains obscure. The discrepancy of the results and the absence of good correlation between the assays clearly highlight all the importance of understanding the strengths and weakness of assays evaluating antioxidant potential of a food at the risk of giving erroneous information to the consumer. It is clear that the use of "total antioxidant capacity" assays for the in vitro assessment of antioxidant quality of food does not be employed by food industrials as a marketing argument or for the assessment of the "wholesomeness" of a food.

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