Results 41 to 50 of about 8,482 (222)
Evaluation of antioxidant activity of the fermented product from the biotransformation of R-(+)-limonene in solid-state fermentation of orange waste by Diaporthe sp. [PDF]
, 2019 A
Bier, Mário César Jucoski +3 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
openaire +1 more source
Effects of honey addition on antioxidative properties of different herbal teas [PDF]
, 2015 Tea and herbal infusions are among the major contributors of phenolic compounds, specifically flavonoids, in our daily diet. Honey is another antioxidant-rich food that is widely used as a natural sweetener. In this work, the effects of honey addition on
Boyacioglu, Dilek +6 more
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Hydroxyl radical detection with a salicylate probe using modified CUPRAC spectrophotometry and HPLC
Talanta, 2008 Reactive oxygen species (ROS) may attack biological macromolecules giving rise to oxidative stress-originated diseases, so it is important to establish efficient methods to screen hydroxyl radical scavengers for antioxidant therapy. Since *OH is very short-lived, secondary products resulting from *OH attack to various probes are measured. As a low-cost
Bektasoglu, Burcu +3 more
openaire +3 more sources
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
doaj +1 more source
Control and comparison of the antioxidant capacity of beers [PDF]
, 2010 The purpose of the present work is to determine the antioxidant capacity (AC) of 27 commercial beers. The AC indicates the degree of protection of a certain organism against oxidative damage provoked by reactive oxygen and nitrogen species.
Delerue-Matos, Cristina +3 more
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
Journal of Chemical Metrology, 2022 The estimation of uncertainty -taking into account all sources of error- is an important tool allowing the identification the influence of each stage of the analytical procedure on the overall quality of the results. Measurement uncertainty - reported with the measurement result - is a parameter that indicates the distribution of the probabilities ...
Kilincer, Mehmet +3 more
openaire +2 more sources
Development and application of rice starch based edible coating to improve the postharvest storage potential and quality of plum fruit (Prunus salicina) [PDF]
, 2018 The study investigated the possibility of enhancing the shelf life of plum fruit coated with rice starch-ι-carrageenan (RS-ι-car) composite coating blended with sucrose fatty acid esters (FAEs). Film solution (starch 3%, carrageenan 1.5% and FAEs 2%) was
Bowyer, M. +7 more
core +2 more sources