The antioxidant activity of aqueous extracts of fresh leaves of costmary (Chrysanthemum balsamita L.) was investigated. The effect of the extraction time on total phenolic compounds (TPhC) and antioxidant activity (ABTS -, CUPRACand FRAP assays) was studied. Results demonstrated highest levels of TPhC (0.60 GAE/g fresh plant weight), CUPRAC (5.93 μMTE/g FW), ABTS (10.68 μMTE/g FW), and FRAP (7....

The aim of the study was to assess whether an extra fertilization with manganese, commercial fertilizer Alkalin (N, K and Si), and combined treatment (manganese + Alkalin) affect the chemical composition of chokeberry fruits (Aronia melanocarpa (Michx) Elliot), especially sugar content and the quantity and profile of phenolics. Dry weight, soluble solids, titratable acidity, total sugar, reduci...

The phyto-constituents and antioxidant activity of the fruit pulp of Trichosanthes cucumerina L. have not been reported in literature and were therefore studied. Two identified morphotypes of this plant (Morphotype I [V1] having long fruit with deep green background and white stripes; and Morphotype II [V2] having light green coloured long fruit) were used for the studies. The dry matter conten...

A systematic survey of As, Cd, Cr, Cu, Ni, Pb and Zn concentrations in vegetables from 416 samples (involving 100 varieties) in Beijing was carried out for assessing the potential health risk to local inhabitants. The results indicated that the metal concentrations in vegetables ranged from < 0.001 to 0.479 microg/g fresh weight (fw) (As), < 0.001 to 0.101 microg/g fw (Cd), < 0.001 to 1.04 micr...

Mercury (Hg) is a toxic element distributed globally through atmospheric transport. Agattu Island, located in the western Aleutian Islands, Alaska, has no history of point-sources of Hg contamination. We provide baseline levels of total mercury (THg) concentrations in breast feathers of three birds that breed on the island. Geometric mean THg concentrations in feathers of fork-tailed storm-petr...

The objective of this work was to analyze oxidative metabolism in Mya arenaria. Total Fe content in M. arenaria collected in the German Wadden Sea was 1.9+/-0.7, 0.7+/-0.1 and 0.17+/-0.01 nmol/mg fresh weight (FW), in digestive glands (DG), mantle and gills, respectively. Labile Fe pool, assessed by electronic paramagnetic resonance (EPR), was 146+/-10 pmol/mg FW, and by the fluorescence method...

Submit Manuscript | http://medcraveonline.com Abbreviations: GAE: Gallic Acid Equivalent; TAE: Tannic Acid Equivalent; QE: Quercetin Equivalent; AAE: Ascorbic Acid Equivalent; CN: Cyanidin 3-glucoside; ABTS: 2, 2-azinobis (3-ethylbenzothiazoline-6-sulphonic acid); DPPH: 2, 2-diphenyl1-picryhydrazyl; FRAP: Ferric Reducing Antioxidant Power; TPTZ: 2,4, 6-tri-2-pyridyl-1,3,5-triazin; FW: Fresh Weight

Radiocaesium contamination of wild boar (Sus scrofa) still achieves several ten thousands Bq kg fresh weight (FW) in some areas of Germany, concurrently exhibiting an extraordinary variability. In the Bavarian Forest, for instance, activity levels ranged between 82 and 40,000 Bq kg FW in 2004, with maximum and minimum values occurring at almost the same location within one week (Fielitz, 2005)....

Human interferon alpha2b gene was transiently expressed in Nicotiana excelsior plants. Fusion with N. plumbaginifolia calreticulin signal peptide for improved apoplast targeting and carrying out the expression under optimized conditions resulted in maximal interferon activity of 3.2 x 10(3) IU/g fresh weight (FW) with an average of 2.1 +/- 0.8 x 10(3) IU/g FW. It proves that N. excelsior is a s...

‘smyrna’ type figs (zidi ‘zd’: dark fruit and thgagli ‘thg’; bidhi ‘bd’ and khedri ‘khd’: white fruit) originated from two areas of fig production in tunisia were subject to physico-chemical description and spectrophotometric analysis for their sugar (glucose, fructose and sucrose) and organic acid (citric and malic) contents. fruit weight ranged between 54 and 82 g, fruit width between 47 and ...