Iranian Echium species (Boraginaceae), popularly known as "Gol-e-Gavzaban" are native plants that some of them have been used widely as food and traditional medicine since long times. In this work organs from different populations of two Iranian Echium species were collected from their natural locations in order to analyze their phenolic content and antioxidant activity. Hydroalcoholic extracts...

In this work, the Interfacial interfacial polymerization (IP) technique was employed using terephthaloyl chloride (TPC) and p-phenylenediamine (PPD), as reactant monomers, to prepare poly(paraphenylene terephthalamide) thin film composite (TFC) nanofiltration on polyethersulphone (PES) support layer. The effects of six different anionic and non-ionic surfactants, in the aqueous phase on the mor...

BACKGROUND The aim of this study was to screen various solvent extracts of whole plant of Torilis leptophylla to display potent antioxidant activity in vitro and in vivo, total phenolic and flavonoid contents in order to find possible sources for future novel antioxidants in food and pharmaceutical formulations. MATERIAL AND METHODS A detailed study was performed on the antioxidant activity o...

The aim of this study was to determine the total phenolic content (TPC), flavonoids (TFC), composition, and in vitro antioxidant activity olive leaf extract five cultivars (Caiazzana, Frantoio, Leccino, Ortice, Coratina) from Campania Region (Italy) during three harvest-times (March, June, November). Different microwave powers, treatment-times, solvents (methanol, ethanol, water) different prop...

BACKGROUND Etlingera elatior is a well-known herb in Malaysia with various pharmaceutical properties. METHODS E. elatior flowers grown in three different locations of Malaysia (Kelantan, Pahang and Johor), were investigated for differences in their content of secondary metabolites (total phenolics [TPC], total flavonoids [TFC], and total tannin content [TTC]) as well as for their antioxidant,...

Plants are the natural treasure of antioxidants and antimicrobial agents. Present study was intended to evaluate antioxidant potential Plumeria alba leaves hydroalcoholic extract (PALHE). Study involved phytochemical screening, antioxidant, antibacterial activity PALHE. The PALHE prepared using 95% ethanol as solvent through maceration method. determination total phenolic content (TPC) flavonoi...

The Rhamnus alaternus plant is a rich source of excellent bioactive compounds including polyphenols and flavonoids. Yet, the improvement extraction yield total polyphenol content (TPC) flavonoid (TFC) from this has never been inspected in depth. Hence, using 15-run Box-Behnken design, dynamic maceration process was optimized for TPC TFC order to investigate antioxidant capacity various fraction...

Sweet basil (Ocimum basilicum Linnaeus) is aromatic herb that has been utilized in traditional medicine. To improve the phytochemical constituents and pharmaceutical quality of sweet basil leaves, ultraviolet (UV)-B irradiation at different intensities (2.30, 3.60, and 4.80 W/m²) and durations (4, 6, 8, and 10-h) was applied at the post-harvest stage. Total flavonoid content (TFC) and total phe...

Abstract Background In this study, turmeric ( Curcuma longa L.) powder was prepared with various extraction and drying methods. Extractions were performed using three solvents (water, 50% ethanol, 70% ethanol) methods, namely, spray (SD), freeze (FD), spray-freeze (SFD). Results Levels of the curcuminoids, curcumin, demethoxycurcumin, bisdemethoxycurcumin, in preparations analysed HPLC, scannin...

Abstract Phytochemical and antioxidant activity of quinoa flour was evaluated after subjected to gamma irradiation processes at dose 3 6 kGy. Both non-irradiated irradiated samples were successive extractions in ethanol solvent. The treatment investigated via Ferric reducing power (FRAP) radical-scavenging (RSA) using 2,2-diphenyl-1-picrylhydrazyl (DPPH).Total phenolic flavonoid content analyze...