Results 31 to 40 of about 3,103 (173)
CyTA - Journal of Food, 2020 Replacing traditional extraction technology with ultrasonic or microwave-assisted extraction has attracted considerable attention. In order to maximize the yield of extracted polyphenolic compounds and antioxidants from Sakiz artichoke by-products, a ...
Seda Kayahan, Didem Saloglu
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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
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CUPRAC Voltammetric Determination of Antioxidant Capacity in Tea Samples by Using Screen-Printed Microelectrodes [PDF]
Journal of Analytical Methods in Chemistry, 2019 Measurement of antioxidant capacity represents an analytical major challenge in terms of accuracy, efficiency, rapid response, or low cost of detection methods. Quantification of antioxidant capacity of food samples using disposable screen‐printed microelectrodes (SPMEs) was based on cyclic voltammetry versus open-circuit potential (CV vs OCP) and ...
Alina Elena Trofin +3 more
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Hittite Journal of Science and Engineering, 2019 Algae contain a large amount of biological active compounds functioning as antioxidant, antimicrobial and anti-tumour. In the present research, antioxidant activity of freshwater alga Microspora sp.
Zeynep Akar, Bulent Akar, Bulent Sahin
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The Scientific World Journal, 2020 Free radicals can cause many diseases, such as cancer. Antioxidant is a compound that could scavenge free radicals. One of the natural antioxidants is guava.
Rika Hartati +2 more
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Novel Colorimetric Sensor for Cupric Reducing Antioxidant Capacity (CUPRAC) Measurement
Procedia Engineering, 2016 Abstract A novel optic sensor was developed for screening the total antioxidant capacity based on the use of cupric – neocuproine (Cu(II)−Nc) immobilized into a polymethacrylate matrix (PMM) with spectrophotometric measurement. The absorption change associated with the formation of the colored Cu(I)−Nc chelate in the PMM as a result of reaction with ...
Krylova, E. +3 more
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Indonesian Journal of Pharmaceutical EducationLibo fruit (Ficus septica Burm. F.) is traditionally used for its medicinal properties, including antioxidant activity. This study assessed the antioxidant potential of methanol (EM) and purified (EP) extracts of Libo fruit collected from four regions in
Nurull Hikmah +6 more
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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
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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
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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