Increased production of reactive oxygen species (ROS) in the vascular wall is a characteristic feature of disease states, including atherosclerosis, diabetes and hypertension. ROS, such as superoxide, reduce nitric oxide bioactivity by scavenging and cause oxidation of lipids and target proteins. In addition, recent work has revealed that ROS mediate a wide range of pathological processes in th...

Carotenoids are pigments naturally occurring in a various number of fruits and vegetables. There are two main classes of these compounds, carotenes, which are hydrocarbons, and xanthophylls, which are derivatives of carotenes. Zeaxanthin belongs to the second class and is the main pigment of yellow corn (Zea mays L.). This compound plays a critical role in the prevention of age-related macular ...

0308-8146/$ see front matter Published by Elsevier doi:10.1016/j.foodchem.2010.01.057 * Tel.: +1 808 959 4343. E-mail address: [email protected] Phytochemical compounds (tocopherols, tocotrienols, and squalene) were measured in seven macadamia cultivars harvested from four locations on Hawaii island to establish whether these compounds enhance the oxidative stability of roasted kernels. ...

Aim of the present study was to investigate the impact of atomization and drying on the functionality of emulsions with an oil/water-interface (o/w-interface) consisting of beta-lactoglobulin (single layer emulsion) and sequentially adsorbed pectins with varying degree of methylation at pH<pI (bilayer emulsions). Thus, the emulsion systems were characterized with respect to their behavior durin...

A new regulatory pathway involved in plant response to oxidative stress was revealed using the iron-induced Arabidopsis ferritin AtFER1 as a model. Using pharmacological and genetic approaches, the DownSTream (DST) cis-acting element in the 3'-untranslated region of the AtFER1 mRNA was shown to be involved in the degradation of this transcript, and oxidative stress triggers this destabilization...

The effect of different stages chemical refining process on the oxidative stability Bene kernel oil during intense and long thermal

Chemical interactions between proteins and phenols affect the overall oxidative stability of a given biological system. To investigate the effect of protein-phenol adduct formation on the oxidative stability of β-lactoglobulin (β-LG), the protein was left to react with an equimolar concentration of 4-methylcatechol (4MC), catechin (Cat), or their respective quinone forms, 4-methylbenzoquinone (...

Infant formula has a fatty acid composition that meets the needs of the neonates for unsaturated fatty acids.These fatty acids are of major importance during this period of life in which the brain and retina are developing, and will therefore have an influence upon visual acuity and learning abilities. Oxygen reacts readily with unsaturated fatty acids, so that every time these compounds are ha...

Infant formula has a fatty acid composition that meets the needs of the neonates for unsaturated fatty acids.These fatty acids are of major importance during this period of life in which the brain and retina are developing, and will therefore have an influence upon visual acuity and learning abilities. Oxygen reacts readily with unsaturated fatty acids, so that every time these compounds are ha...