background: the effect of curcumin as a natural safe compound with different biological activities was examined on fungal growth and aflatoxin production in aspergillus parasiticus nrrl 2999. methods: the fungus was cultured in presence of serial two-fold concentrations of curcumin (125-2000 µg/ml) in yeast extract sucrose broth for 3 days at 28°c. mycelia dry weight was determined as an index ...

The purpose of the present study was to employ two methods-square wave voltammetry (SWV) performed on screen printed sensors and ferric reducing antioxidant power (FRAP)-as suitable tools for the assay of low-molecular-weight antioxidants (LMWAs). LMWAs were assayed by both methods and the resulting data were statistically compared. Plasma samples from five Cinereous vultures accidentally intox...

BACKGROUND There is growing evidence for the role of oxidative damage in chronic diseases. Although ozone (O3) is an oxidant pollutant to which many people are exposed, few studies have examined whether O3 induces oxidative stress in humans. OBJECTIVES This study was designed to assess the effect of short-and long-term O(3) exposures on biomarkers of oxidative stress in healthy individuals. ...

It would be desirable to establish and standardize methods that can measure the total antioxidant capacity level directly from vegetable extracts containing phenolics. Antioxidant capacity assays may be broadly classified as electron transfer (ET)- and hydrogen atom transfer (HAT)-based assays. The majority of HAT assays are kinetics-based, and involve a competitive reaction scheme in which ant...

Epidemiological evidence links high intake of ascorbic acid (AA) and other antioxidant micronutrients to health promotion. It would be useful to know the overall, or 'total' antioxidant capacity of foods, to establish the contribution of AA to this, and to assess how this information may translate into dietary intakes to meet the new US daily reference intake for AA. In this study, the total an...

The aim of study was to investigate the effect of yeast cell walls (mannanoligosaccharides – MOS) supplemented to a sow’s diet on some blood parameters of sows and their piglets. The investigations were carried out in two experiments with two groups of 30 sows each. The sows of groups 1 and 3 (control) received the basal diet, groups 2 and 4 (MOS) – the same diets, supplemented with yeast cell ...

BACKGROUND Diabetes is associated with an increased generation of reactive oxygen species (ROS), which plays an important role in the development of oxidative stress and anemia. OBJECTIVES The main purpose of this study was to investigate whether patients with diabetes undergoing hemodialysis (HD) were susceptible to oxidative stress and whether resulting damages affect the structure of hemog...

BACKGROUND There is no available information on physicochemical and antioxidant properties on Bangladeshi honey. We investigated five different monofloral and three different multifloral honey samples collected from different parts of Bangladesh. METHODS The levels of phenolics, flavonoids, ascorbic acid, ascorbic acid equivalent antioxidant content (AEAC), proline, protein and antioxidants w...

0308-8146/$ see front matter Published by Elsevier doi:10.1016/j.foodchem.2011.04.105 ⇑ Corresponding author. Tel.: +1 509 335 1858; fax E-mail address: [email protected] (B.A. Rasco). Total phenolic content (TPC) and total antioxidant capacity (TAC) of four onion varieties (red, white, yellow and sweet) and shallot from selected locations (Washington, Idaho, Oregon, Texas and Georgia) were determi...