The possibility of utilising chopped and deseeded carob pods (kibbles) as a source of polyphenolic antioxidants was examined by performing extractions with various solvent systems, in order to evaluate and optimize the conditions for the recovery of polyphenols. Maximum quantities of polyphenolic components were found in 80 % acetone extracts, as evaluated by measuring total polyphenol and tota...

Autochthonous strains belonging to Lacticaseibacillus paracasei and casei were screened based on pro-technological (kinetics of growth acidification, exopolysaccharides biosynthesis), functional (cell viability during processing storage, in vitro protein digestibility, gastrointestinal batch digestion), sensory properties ferment milk intended be included the ice-cream formulation. The main dis...

Juice prepared from lemon (Eureka), mandarin (Kinnow) and orange (Orlando) fruits cultivated in Saudi Arabia were analyzed for different physico-chemical properties, total phenolics, ascorbic acid and antiradical activities. Juices from lemon, mandarin and orange 8.97, 16.1 and 11.78% total soluble solids; 5.73, 1.37 and 1.69% titrable acidity; 79.21, 91.18 and 107.37 mg GAE/100mL total phenoli...

Natural flavonoids such as quercetin, (+)catechin and rutin as well as four methoxylated derivatives of quercetin used as models were investigated to elucidate their impact on the oxidant and antioxidant status of human red blood cells (RBCs). The impact of these compounds against metal toxicity was studied as well as their antiradical activities with DPPH assay. Antihemolytic experiments were ...

Capsella bursa-pastoris (L.) Medik. (Brassicaceae) is a wild herb with high nutritional value that can be eaten raw or cooked. A metabolomic study was performed with different extracts of its aerial parts that were tested concerning their antiradical, acetylcholinesterase inhibitory and antibacterial activities. Phenolic compounds were identified and quantified by HPLC-DAD, organic acids and am...

Based on the reaction of 1,6-diaryl-3, 4-dihydroxy-2, 4-hexadiene-1, 6-dione and arylidene-arylamines various 6-aryl-substituted-4-benzoylacetyl-4-hydroxy-5, 6-dihydro-4H-1, 3-oxazines were synthesized. Due to the relevance of search of new biologically active compounds with antioxidant activity, there was analyzed antiradical activity of derived oxazines. Antiradical properties of these compou...

Many pine bark extracts have antioxidant properties. This work examined bench scale extraction on the yield, the composition and antioxidant properties of Pinus radiata. Acetone solvent (98.7% w/w at 120 °C) yielded maximum phenols concentration, tannins concentration, anti-radical activity (DPPH) and reducing activity (FRAP), although its extraction yield was the lowest. When the organic solve...

Commercialization of cactus pears based on their antioxidant properties can generate competitive advantages, and these can turn into business opportunities and the development of new products and a high-value ingredient for the food industry. This work evaluated the antioxidant activities (1,1-diphenyl-2-picrylhydrazyl radical-scavenging, protection against oxidation of a β-carotene-linoleic ac...

The aim of this study was to assess the antiglycation and antioxidant properties of aqueous extract of Anethum graveolens (dill). In the in vivo and in vitro experiments, antioxidant properties, blood glucose, and AGEs formation were determined. Dill extract was given orally to healthy and diabetic rats. Our results illustrated that different concentrations of dill extract (0.125, 0.25, 0.5, an...

BACKGROUND In line with the current tendency towards the production of the so-called safe foods, the use of environmentally-friendly methods for the extraction of polyphenols from fruits has been sought. Citric acid is a good solvent in the preparation of phenolic compounds for the food and pharmaceutical industries because it is a natural antioxidant and is non-toxic for the environment. Furth...