Now showing items 1-10 of 220
Total antioxidant capacity with peak specificity via reaction flow chromatography and the ferric reducing antioxidant power assay
An established ferric reducing antioxidant power (FRAP) assay was optimised by preparation of the derivatisation reagent in 300 mM formate instead of 300 mM acetate conditions, resulting in increased sensitivity signal to ...
Comparison of DPPH Free Radical Scavenging, Ferric Reducing Antioxidant Power (FRAP), and Total Phenolic Content of Two Meriania Species (Melastomataceae).
Searching for new antioxidants used in pharmaceuticals, cosmetics or agrochemicals have increased today. Many phenolic compounds have been reported as promising for this goal.
Antioxidant profiling of ginger via reaction flow chromatography
(Natural Products, 2021-07)
Reaction flow (RF) chromatography is a powerful and efficient approach that utilizes conventional high-performance liquid chromatography (HPLC)–ultraviolet (UV)–visible detection. This technique exploits a novel column ...
Phenolic compounds and antioxidant capacity of monovarietal olive oils produced in Argentina
Virgin olive oil has high levels of phenolic compounds that are highly bioavailable; these compounds are receiving considerable attention for their antioxidant activity, closely related to the prevention of non-communicable ...
Effect of Moringa oleifera leaf powder on drying kinetics, physico-chemical properties, ferric reducing antioxidant power, α-tocopherol, β-carotene, and lipid oxidation of dry pork sausages during processing and storage
The potential of Moringa oleifera leaf powder (MLP) to limit lipid oxidation in nitrite‐free unfermented dry pork sausages (droëwors) was investigated. Total phenolic compounds, α‐tocopherol and β‐carotene content of MLP ...
Variation of secondary metabolites in the aerial biomass of cryptocarya alba
(Natural Product Incorporation, 2019)
DETERMINATION OF NARINGIN AND HESPERIDIN IN CITRUS FRUIT BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY. THE ANTIOXIDANT POTENTIAL OF CITRUS FRUIT
Naringin and hesperidin in dimethyl sulfoxide extracts of citrus fruit (oranges, red and blond grapefruit, and sweeties- a hybrid of pummelo and blond grapefruit) have been analyzed by high-perfonnance liquid chro matography ...
Antioxidant capacity of the striped sunflower (Helianthus annuus L.) seed extracts evaluated by three in vitro methods
(TAYLOR & FRANCIS LTD, 2009)
The antioxidant capacity of the striped sunflower seed cotyledon extracts, obtained by sequential extraction with different polarities of solvents, was evaluated by three different in vitro methods: ferric reducing/antioxidant ...
Antioxidant capacity and phytochemical characterization of Spathodea campanulata growing in different climatic zones in Brazil
The aim of present study was evaluating the antioxidant activity and real content of phytochemicals of Spathodea campanulata from different climatic regions (two subtropical and one tropical area/cities) at Brazil. Samples ...