This research was performed to evaluate the effect of light intensity (310 and 630 μmol ms) on production and antioxidant activity of flavonoids and phenolic compounds from the leaves, stems and roots in three varieties of Labisia pumila Benth. The experiment was carried out base on randomized complete block design with a factorial arrangement. The results revealed that total phenolic and flavo...

The aim of this study was to prepare the freeze dried powder noni (Morinda citrifolia) pulp and determine contents bioactive antioxidant capacity. Seed, peel, lyophilized were characterized in terms physico-chemical, carotenoids, chlorophyll, sugars, ascorbic acid, phenolics, flavonoids antioxidants contents. Phenolic compounds determined by LC-MS. showed high levels phenolics (7486.38 µg GAE/g...

The objective was to evaluate the effect of visible spectrum LED lighting during shelf-life on physicochemical quality and main bioactive compounds Kumato® cherry tomatoes. Tomatoes were stored 13 days at 5 °C under white (W), blue (B), + red (B R), green (G far-red FR) lights. Darkness (D) used as control. illumination showed higher weight losses firmness decreases (30–35%). No chilling injury...

The effect of increasing concentration of ethanol (0, 4, 7.5 and 13 %) and contact time (respectively 1, 4, 7 and 10 days) on the extraction of phenolics from berry skins and seeds of the grape, Vitis vinifera 'Aglianico' and 'Uva di Troia', were examined. Two assays of post-fermentative maceration in two hydroalcoholic solutions at 11 and 13 % ethanol, were also performed. Chromatic properties...

BACKGROUND Canadian prairies are a habitat for unique wild plants. The main object of the present study was to investigate phytochemicals content and antioxidant activity in seven wild Canadian prairie fruits. METHODS The presence of total phenolics, flavonoids, anthocyanins and antioxidant activity were identified in the extracts according to standard procedure. RESULTS Wild rose had the h...

herbal medicines can be used as the potential sources of anti-oxidative compounds to help the treatment of diseases associated to oxidative stress. in this paper, the ferric reducing antioxidant power (frap) activity of four lamiaceae herbal extracts, which traditionally applied in oxidative stress related diseases, has been evaluated and total phenolics contents of these extracts determined by...

background & aim: osmotic stress in plants lead to increase free radicals and plants use different mechanisms to scavenge these radicals. so, researchers apply stresses especially drought stress to increase secondary metabolites such as phenolics, and antioxidants. one of the valuable medicinal plants is yarrow (achillea tenuifolia) which is a perennial plant with different medicinal applic...

Seasonal variations may influence the quality and quantity of biologically active ingredients in medicinal plants. Rosemary (Rosmarinus officinalis L.) a member of the Lamiaceae family, contains valuable antioxidant, anticancer and antibacterial substances, including Carnosic acid (CA). Here, the fluctuations of important active compounds present in rosemary leaf extracts collected in Golestan,...

Abstract Background: Binjai leaves (Mangifera caesia Jack. ex. Wall) or M. contain phenolic and flavonoid compounds important in medicinal plants development. The solvent difference fractionation will give various active substance concentrations. Objective: To evaluate the content qualitatively quantitatively from n-hexane fraction of binjai methanol extract. Methods: soxhletation method with w...

A small Chilean variety of pears growing in the town of Toconao, an oasis located at the northeastern edge of the Salar de Atacama, northern Chile, was studied by means of modern PDA and high resolution mass spectral data (UHPLC-PDA-HESI-orbitrap-MS/MS). In addition, the antioxidant features of the fruits were compared with the varieties Packhman's Triumph and Abate Fetel and correlated with th...