The present study was conducted by using kitchen wastes like peels of different vegetables e.g. cucumber, potato, carrot, chickpea, cauliflower and pea, to evaluate the phytochemical constituents, DNA protection ability and free radicals scavenging activity. Phytochemicals tests showed the presence of carbohydrates, amino acids, glycosides, alkaloids, tannins and steroids in all samples while p...

The anti-ulcerative and antioxidant potentials of Egyptian propolis alcoholic extract as well as its total phenolic and flavonoid contents were evaluated. The content of total phenols and flavonoids of propolis extract were determined by spectrophotometric methods with an FC reagent and by the complexation reaction with aluminium chloride, respectively. The antioxidant activity was examined wit...

A diet rich in polyphenols has previously been shown to be associated with a lower risk for cardiovascular disease. Specifically, inhibition of platelet hyperactivation by polyphenols decreases platelet-dependent thrombosis, reducing the risk for cardiovascular disease. However, whether polyphenols in Salvia miltiorrhiza Bunge (SMB) affect platelet functions has not been clearly determined. Her...

To investigate the method for quantitatively determining chlorogenic acid in Verbena officinalis L. extract; and to determine its content and in-vitro antibacterial activity. Cylinder-plate method and MIC assay were employed to compare the antibacterial activity between different concentrations of Verbena officinalis L. extracts; and to evaluate the antioxidant activity of various extracts in t...

BACKGROUND Ethnomedicinally Rumex hastatus D. Don has been used since long for various ailments especially in neurological disorders. The reported data and the importance of Rumex genus demonstrate the vital medicinal value of R. hastatus. METHODS In the current investigational study, isolation of essential oil and its antioxidant and anticholinesterase assays were performed. The essential oi...

Essential oils from plants have been proven safe as natural antioxidants, and few are already marketed as digestive enhancers as well as in prevention of several degenerative diseases. This study evaluated the antioxidant capacity of seed and shell essential oils of Abrus precatorius (L), a herb used for ethno-medicinal practices in Nigeria. The essential oils were obtained by hydro-distillatio...

This study compares the radical scavenging capacity of high-molar-mass hyaluronan (HA) using standardized methods applying 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals and 2,2'-azinobis[3-ethylbenzthiazoline sulfonate] (ABTS) radical cations as oxidants. Additionally, spin-trapping technique combined with electron paramagnetic resonance (EPR) was used to evaluate the ability of HA to scavenge ...

At present, it is widely-known that free radicals are the causes of illness such as cancers, coronary heart disease, Alzheimer’s disease and aging. One method of protection from free radical is the consumption of antioxidant-containing foods or herbs. Several analytical methods have been used for qualitative and quantitative determination of antioxidants. This project aimed to evaluate antioxid...

Background & Aim:Oxidative stresses caused by free radicals are known to promote many diseases such as inflammation and cancer; therefore, any plant product that can inhibit free radical production can play an important role in preventing diseases. We aimed to compare the fracture rate and the scavenging activity of free radicals, and the antioxidant composition of rol...

The cytotoxicity, ROS (reactive oxygen species)-generation activity and radical-scavenging activity of curcumin and related compounds such as eugenol, eugenol orthodimer (bis-eugenol; 3,3'-dimethoxy-5,5'-di-2-propenyl-1,1'-biphenyl-2,2'-diol) and isoeugenol were investigated. Their cytotoxicity against a human submandibular gland adenocarcinoma cell line (HSG) declined in the order curcumin > i...