May 3, 2017

Phenolic compound in olive oils

Phenolic compounds are often described as effective antioxidants. These compounds have a great importance for several characteristics of the olive oil, such as flavor, shelf-life and resistance against oxidation.

The class of phenols present in olive oils encompasses a large number of different substances such as vanillic acid, caffeic acid, hydroxytyrosol, tyrosol, oleuropein, ligstroside, gallic acid, coumaric acid and flavonoids. In olive oils the bitter taste is due to phenolic compounds and cinnamic acid, while the pungency is due to oleuropein.
The amount of phenolic compounds in olive oils cultivars varies from 150 to 700 ppm and is affected by various factors such as cultivar, degree of maturation, climatic conditions and pest damage to fruit. Green olives oil in phenolic content and with a more aromatic and fruity flavor.

Oleuropein is the major phenolic in olive fruits. Oleuropein underwent significant changes in its concentration during fruit development.

Oleuropein has been shown to be responsible for the high resistance, robustness and good immune function of the olive tree. In it original, unaltered form, this substance lowers, blood pressure, dilates blood vessels, and protects against heart rhythm disturbances.
Phenolic compound in olive oils
at 3:06 AM
Labels: , , , ,

The Most Popular Posts

  • Crude Fiber
    Crude fiber is a measure of the quantity of indigestible cellulose, pentosans, lignin, and other components of this type in present foods. ...
  • Sources of meat
    Of the many foods obtained from the land, humans tend to prefer animal foods, mainly beef, pork, poultry and mutton as well as their by-pr...
  • Crude Fat
    Crude fat is the term used to refer to the crude mixture of fat-soluble material present in a sample. Crude fat also known as the ether ext...
  • The process of gelatinization
    Gelatinization occurs when starch granules are heated in a liquid. It is responsible for the thickening of food systems. The process is an i...
  • Ash content in food
    Ash or mineral content is the portion of the food or any organic material that remains after it is burned at very high temperatures. The a...
  • Soft drinks
    Soft drinks have become an integral part of the American lifestyle, constituting over a quarter of all beverages consumed in the United States. This ubiqui...
  • Instant Noodles
    Instant noodles have emerged as a significant segment within the global noodle industry, experiencing rapid growth and widespread consumption. Noodles, cra...
  • Healthy Diet
    Most American today are overfed yet undernourished, which eventually leads to obesity and poor health. The answer to those pervasive problem is simply to ...