The data presented show the ability of subinhibitory concentrations of plant essential oils to influence the production of enterotoxins A and B and alpha-toxin by Staphylococcus aureus. Subinhibitory concentrations of the oils of bay, clove, cinnamon, nutmeg and thyme had no significant effect on the overall quantity of extracellular protein produced. Haemolysis due to alpha-toxin was significa...

BACKGROUND The paper looks at the levels of canolol, tocopherols and antioxidant activity in cold-pressed and hot-pressed rapeseed oils produced from seeds of various moisture levels (5%, 7.5%, and 10%). The paper also considers the effects of seed roasting on the levels of these compounds. METHODS The material used for the tests was rapeseed cv. Adrianna. The quality of the oils obtained is ...

The beneficial health effects of inclusion of n-3 PUFA from fish and fish oils in the human diet have been extensively investigated in the past three decades beginning with the initial reports on the reduced prevalence of IHD in Greenland Inuit. Extensive nutritional and clinical studies continue to indicate that higher intakes of EPA and DHA derived from marine sources can reduce the risk of c...

The banning in 2006 of the use of antibiotics as animal growth promoters in the European Union has increased demand from producers for alternative feed additives that can be used to improve animal production. This review gives an overview of the most common non-antibiotic feed additives already being used or that could potentially be used in ruminant nutrition. Probiotics, dicarboxylic acids, e...

The synthesis of biodiesel fuel from lipids (vegetable oils and animal fats) has gained in importance as a possible source of renewable non-fossil energy in an attempt to reduce our dependence on petroleum-based fuels. The catalytic processes commonly used for the production of biodiesel fuel present a series of limitations and drawbacks, among them the high energy consumption required for comp...

Hippophae rhamnoides, also known as sea buckthorn is an ancient plant with modern virtues, due to its nutritional and medicinal value. Sea buckthorn is a spiny bush with long and narrow leaves, and orange-yellow berries. It is cold resistant, and native to Europe and Asia. All parts of Hippophae e.g. berries, leaves, and seed or pulp oils contain many bioactive compounds. They are a rich source...

This paper is a review of literature concerning using vegetable oils as a replacement for diesel fuel. The term vegetable oils as used in this paper refers to vegetable oils which have not been modified by transesterification or similar processes to form what is called biodiesel. The oils studied include virgin and used oils of various types including soy, rapeseed, canola, sunflower, cottonsee...

Acetylcholinesterase inhibition, antioxidant and cytotoxic activities of Hedychium gardnerianum leaf essential oils from S. Miguel Island were determined. All the oils inhibited acetylcholinesterase, with IC(50) values of approximately 1 mg/mL, showing no statistical differences between collection sites. Three oils presented mixed inhibition, whilst one was almost truly competitive. This activi...

Antimicrobial activity of the essential oils obtained from leaves, root and the seeds of Diplotaenia damavandica Mozaffarian, Hedge & Lamond, an endemic plant to Iran, was determined against 10 microorganisms using the disk susceptibility test as well as measuring minimum inhibitory concentrations. The results showed that all three oils had antibacterial activity against Bacillus subtilis, Stap...

As a result of antibiotic resistance in human pathogenic bacteria, alternatives for Antibiotic Growth Promoters (AGP) have been developed in recent years. Herbs and botanicals can be seen as such an alternative (WENK, 2003). Essential oils derived from different plants have been tested over the years to identify their effects on animal performance. Essential oil extracts from Oregano, with its ...