Results 51 to 60 of about 8,482 (222)
Procedia Chemistry, 2014 AbstractCUPRAC is a method used to determine antioxidants quantifying the chromophore [Cu(Nc)2]+, generated upon increases of added antioxidants to a Cu(II) containing solution. In this work, an electrochemical alternative to quantify this complex is presented using cyclic voltammetry and chronoamperometry, compared with the classical spectroscopic ...
Cárdenas, Arely +2 more
openaire +1 more source
Pharmaceutical Biology, 2017 Context: Stachys guyoniana Noë ex. Batt. and Mentha aquatica L. are two Algerian Lamiaceae used in folk medicine. Objective: To investigate their antioxidant, anticholinesterase and antibacterial activities.
Maria Ferhat +7 more
doaj +1 more source
JIIS: Jurnal Ilmiah Ibnu Sina, 2022 Stres oksidatif adalah kerusakan yang diakibatkan oleh spesi oksigen reaktif. Senyawa yang dapat mencegah terjadinya stres oksidatif yaitu antioksidan.
Asep Roni, Dewi Kurnia, Nurani Hafsyah
doaj +1 more source
Antioxidant, anti-acetylcholinesterase and cytotoxic activities of ethanol extracts of peel, pulp and seeds of exotic Brazilian fruits Antioxidant, anti-acetylcholinesterase and cytotoxic activities in fruits [PDF]
, 2012 Ethanol extracts of powdered genipap (Genipa americana L), umbu (Spondia tuberosa A.) and siriguela (Spondia purpurea L) prepared from separate pulp, seeds and peel were investigated for their (i) antioxidant capacity, which was evaluated by various ...
Costa, Joao Gomes da +11 more
core +1 more source
Production of thymol nanoemulsions stabilized using Quillaja Saponin as a biosurfactant : antioxidant activity enhancement [PDF]
, 2019 Thymol oil-in-water nanoemulsions as a potential natural alternative for synthetic antioxidant agents were developed. The nanoemulsions were formulated using Quillaja Saponin bio-surfactant and green solvents including high oleic sunflower oil (HOSO ...
Dewettinck, Koen +3 more
core +2 more sources
Annals of Agricultural Sciences, 2021 Fruits of cardamom (Amomum compactum Sol. Ex Maton), Zingiberaceae family, has long been used as herbs and spices. The aim of the research was to evaluate the total flavonoid content and antioxidant activity in ethanol and ethyl acetate of fruit extract ...
Waras Nurcholis +4 more
doaj +1 more source
4-(3-Nitrophenyl)thiazol-2-ylhydrazone derivatives as antioxidants and selective hMAO-B inhibitors: synthesis, biological activity and computational analysis [PDF]
, 2019 A new series of 4-(3-nitrophenyl)thiazol-2-ylhydrazone derivatives were designed, synthesised, and evaluated to assess their inhibitory effect on the human monoamine oxidase (hMAO) A and B isoforms. Different (un)substituted (hetero)aromatic substituents
Alcaro, Stefano +10 more
core +1 more source
Hematology, 2014 The CUPRAC-BCS and antioxidant activity (AOA) assays have been developed as indirect methods to determine the total antioxidant capacity (TAC). We examined these assays as markers, in erythrocytes, under oxidative stress (induced by storage) and with antioxidants--vitamin C, L-carnitine, and curcumin.Antioxidants were added to blood samples, stored and
Ravikumar, Soumya, Rajashekharaiah, Vani
openaire +2 more sources
JSFA reports, EarlyView.Abstract Background This study evaluated the influence of four drying techniques—freeze drying (FZD), microwave drying (MCD), oven drying (OVD), and sun drying (SUD)—on the bioactive, nutritional, and physical properties of turmeric. Using standard analytical procedures, the samples were examined for antioxidant activity (DPPH and ABTS assays), total ...
Eric Antiri Aforo +6 more
wiley +1 more source
Antioxidant Potential of Resveratrol as the Result of Radiation Exposition
Antioxidants, 2022 The purpose of this study was to determine the effect of electron beam irradiation (EBI) at a dose of 25 kGy on the stability and antioxidant properties of resveratrol (RSV), a nutraceutical with clinically proven activity.
Natalia Rosiak +5 more
doaj +1 more source