Traditional Chinese medicinal herbs have been used for thousands of years to treat numerous ailments. In recent years, these herbs have been the focus of attention due to their medicinal and pharmacological benefi ts. In the present study, 25 types of herbs commonly used in Chinese medicinal culinary diets were quantitatively investigated for their various antioxidant activities. Using the 1,1-...

Types of nettles (Urtica dioica) were collected from different regions to analyze phenolic compounds in this research. Nettles are specially grown in the coastal part. According to this kind of properties, nettle samples were collected from coastal part of (Mediterranean, Aegean, Black sea, and Marmara) Turkey. Phenolic profile, total phenol compounds, and antioxidant activities of nettle sampl...

The extraction of red beetroot (Beta vulgaris) peel betalains and phenolics was compared with two extraction methods and solvents. The content of total phenolics in the extracts was determined according to a modification of the Folin-Ciocalteu method and expressed as gallic acid equivalents (GAE). The profiles of extracts were analysed by high-performance liquid chromatography (HPLC). The compo...

This study identified the secondary metabolites present and determined the antioxidant activity of 31 edible wild fruits grown in Benguet province, Cordillera Administrative Region, Philippines. Total polyphenol and flavonoid content were estimated using Folin-Ciocalteu and aluminium chloride method respectively. Antioxidant activity was measured through diphenyl-1-picrylhydrazyl assay. Based o...

background & aim: fruits from the jujube plant (ziziphus jujuba) possess health-promoting effects and medicinal properties. jujube has a long history of usage as a remedy in iranian traditional medicine and is recommended for the treatment of some diseases. this study investigated the variations in antioxidant capacities (aox), total phenol (tph), total flavonoid (tf) and total anthocyanin ...

The Folin-Ciocalteu assay is a widely used method for measuring the total phenolic content (TPC) in honey, but it can be affected by presence of reducing sugars which lead to interference and an over-estimation its TPC. To optimize honey analysis, effect pH on was investigated. A number scenarios were tested using different concentrations Na2CO3 (0.00%, 0.75%, 0.94%, 7.50%) order minimize sugar...

This study evaluated the chemical profile and antimicrobial activity of essential oil (EO) P. dioica. The EOs were extracted by hydrodistillation chemically characterized gas chromatography coupled to mass spectrometry (GC/MS). total phenolics quantified Folin Ciocalteu method. For assay, Disc Diffusion Broth Dilution method applied obtain minimum inhibitory concentration bactericidal concentra...

A modified and improved micromethod for tyrosine determination has been developed. The method is sensitive, economic and applicable for estimation of tyrosine released in enzymatic reactions and in tissue. A range of Folin-Ciocalteu (FC) reagent was used to optimize the conditions for the development of blue color. Thus in 1.5 ml of the assay system, the suitably diluted FC reagent at the final...