In this work total anthocyanin content (TAC), total flavonoid content (TFC), total phenolic content (TPC) and minerals found in five black glutinous rice cultivars (MS, SK, PY, PC and KK) from Thailand were analyzed. The antioxidant activity of anthocyanin-rich black glutinous rice bran extracts against nitric oxide radical (NO˙), superoxide radical (O2˙Ż) and lipid peroxyl radical (LOO˙) was a...

Royal jelly, which is used in functional foods due to its antioxidant capacity, has started be widely used. In this study, the capacities and phenolic contents of royal jelly mixtures were determined. Total substance (TPC) specified using Folin-Ciocalteu procedure, total flavonoid (TFC) by aluminium chloride colourimetric method, compound with LC-MS/MS activity 2,2-diphenyl-1- picrylhydrazyl (D...

Jurinea dolomiaea Boiss., family Compositae, is a medicinally important plant of alpine region. Its tuberous roots are used in various ailments in folk medicine. This study was undertaken to estimate total phenolic (TPC) and total flavonoid contents (TFC) and to determine anti-free radical potential by diverse in vitro antioxidant assays. Crude methanol extract (JDME) was fractionated into n-he...

Abstract Lagenaria siceraria (bottle gourd) fruit is highly celebrated for its nutritional as well therapeutic properties. The present study was undertaken with the aim of exploring an efficient green solvent-free microwave-assisted extraction method bioactives from this fruit. Optimization done according to response surface methodology (RSM), where microwave power (W) and time (s) were indepen...

Honey is a popular food product produced by honey bees that it is a well-known antimicrobial and antioxidant activity. Floral origin of honey plays an important role on its biological properties.This research was carried out to evaluate the antibacterial and antioxidant activity of four sample honey with different floral origin collected from the bee hive in the Golestan province in north of Ir...

The present article includes the Ultrasound-Assisted Extraction (UAE) of Citrus unsiu Marc. leaves rich in polyphenols. The best possible combinations of solvent, pH of the media, solvent/solid ratio, extraction time, extraction temperature and particle size were obtained for the maximum extraction of Total Phenolic Compounds (TPC) and Total Flavonoid Compounds (TFC) by us...

 Background: Antioxidants have the ability to influence acrylamide formation. This study aimed to evaluate the impact of aqueous extracts of six wild edible plants on the acrylamide formation in potato crisps. Methods: Sliced potatoes were submerged in the plant extracts at a concentration of 0, 5, and 10 g/L for 1, 5, and 10 min. Before being fried and their acrylamide levels were calculated ...

The medicinal significance of Ephedra is based on the sympathomimetic properties of ephedrine (E) alkaloids. Pharmacological effects depend on the phytocomposition of individual Ephedra species. The aim of this study was to measure the total alkaloids content (TAC), total phenolics content (TPC), and total flavonoids content (TFC) and determine their relationship in dry herb of Ephedra major, E...

Melaleuca bracteata is a yellow-leaved tree belonging to the Melaleuca genus. Species from this genus are known to be good sources of natural antioxidants, for example, the "tea tree oil" derived from M. alternifolia is used in food processing to extend the shelf life of products. In order to determine whether M. bracteata contains novel natural antioxidants, the components of M. bracteata etha...

The influence of both acidic and basic hydrolysis on the yield, total phenolic content and antioxidative capacity of methanolic extract of germinated brown rice (GBR) was studied. Total phenolic content (TPC), total flavonoid content (TFC), 2,2'-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid (ABTS) radical cation scavenging, and ferri...