Extra Oil Oil Olive Olive Virgin Vs
Extra Oil Oil Olive Olive Virgin Vs
Olive oil is a fruit oil obtained from the olive ( Olea europaea ; family Oleaceae), a traditional tree crop of the Mediterranean Basin. It is commonly used in cooking, cosmetics, pharmaceuticals, and soaps and as a fuel for traditional oil lamps. Olive oil is used throughout the world, but especially in the Mediterranean.
Producers
Over 750 million olive trees are cultivated worldwide, 95% of which are in the Mediterranean region. Most of global production comes from Southern Europe, North Africa and the Near East.
World olive oil production in 2006-2007 was 2.767 million tonnes, of which Spain contributed 40% to 45%. Of the European production, 93% comes from Spain, Italy, Portugal and Greece.
Greece devotes 60% of its cultivated land to olive growing. It is the world's top producer of black olives and has more varieties of olives than any other country. Greece holds third place in world olive production with more than 132 million trees, which produce approximately 350,000 tons of olive oil annually, of which 82% is extra-virgin (see below for an explanation of terms). About half of the annual Greek olive oil production is exported, but only some 5% of this reflects the origin of the bottled product. Greece exports mainly to European Union (EU) countries, principally Italy, which receives about three-quarters of total exports. Olives are grown for oil in Greece, with Peloponnese being the source of 65% of Greek production, as well as in Crete, the Aegean Islands and Ionian Islands. The most prized Greek olive variety for oil production is the Korōnéiki , originating from the area of Korōnē in Messenia. This variety grows well on mountain slopes and produces very small fruit; the high ratio of skin to flesh giving the oil its coveted aromatic qualities. The variety is also suited to the production of agourélaio , oil from olives that are slightly unripe. When crushed in presses that are not capable of grinding the stone, this oil is entirely free of acidity and possesses top-tier organoleptic characteristics. Because not crushing the stones reduces oil yield, production of agourélaio is limited to "boutique" presses run by entrepreneurs and small cooperatives.
Among the many different olive varieties or cultivars in Italy are Frantoio, Leccino Pendolino, and Moraiolo; in Spain the most important varieties are the Picual, Alberquina, Hojiblanca, and Manzanilla de Jaén; in Greece, Koroneiki; in France, Picholine; in California, Mission; in Portugal, Galega; in Croatia, Oblica and Leccino. The oil from the varieties varies in flavour and stability (shelf life).
Australia now produces much olive oil. Many Australian producers only make premium oils, whilst a number of corporate growers operate groves of a million trees or more and produce oils for the general market. Australian olive oil is exported to Asia and Europe.
In North America, Italian and Spanish olive oils are the best-known, and top-quality extra-virgin oils from Italy, Spain, and Greece are sold at high prices, often in "prestige" packaging. A large part of U.S. olive oil imports come from Italy, Spain, and Turkey. The U.S. imported 47,800,000 US gallons (181,000 m 3 ) of olive oil in 1998, of which 34,600,000 US gallons (131,000 m 3 ) came from Italy.
The Republic of South Africa also produces extra virgin olive oil, with production increasing to meet demand.
Regulation and adulteration
Main article: Olive oil regulation and adulterationThe International Olive Oil Council (IOOC) is an intergovernmental organization based in Madrid, Spain, with 23 member states. It promotes olive oil around the world by tracking production, defining quality standards, and monitoring authenticity. More than 85% of the world's olives are grown in IOOC member nations. The United States is not a member of the IOOC, and the U.S. Department of Agriculture does not legally recognize its classifications (such as extra-virgin olive oil). The USDA uses a different system, which it defined in 1948 before the IOOC existed. The California Olive Oil Council, a private trade group, is petitioning the USDA to adopt IOOC rules.
The IOOC officially governs 95% of international production and holds great influence over the rest. IOOC terminology is precise, but it can lead to confusion between the words that describe production and the words used on retail labels. Olive oil is classified by how it was produced, by its chemistry, and by its flavor. All production begins by transforming the olive fruit into olive paste. This paste is then malaxed to allow the microscopic oil droplets to concentrate. The oil is extracted by means of pressure (traditional method) or centrifugation (modern method). After extraction the remnant solid substance, called pomace, still contains a small quantity of oil.
The EU regulates the use of different protected designation of origin labels for olive oils.
U.S. Customs regulations on "country of origin" state that if a non-origin nation is shown on the label, then the real origin must be shown on the same side of the label and in comparable size letters so as not to mislead the consumer. Yet most major U.S. brands continue to put “imported from Italy” on the front label in large letters and other origins on the back in very small print. These products are a mixture of olive oil from more than one nation and it is not clear what percentage of the olive oil is really of Italian origin. This practice makes it difficult for high quality, lower cost producers outside of Italy to enter the U.S. market, and for genuine Italian producers to compete.
An article by Tom Mueller in the August 13, 2007 issue of the The New Yorker alleges that regulation, particularly in Italy, is extremely lax and corrupt. Mueller states that major Italian shippers routinely adulterate olive oil and that only about 40% of olive oil sold as "extra virgin" actually meets the specification. In some cases, colza oil with added color and flavor has been labeled and sold as olive oil. This extensive fraud prompted the Italian government to mandate a new labeling law in 2007 for companies selling olive oil, under which every bottle of Italian olive oil would have to declare the farm and press on which it was produced, as well as display a precise breakdown of the oils used, for blended oils. In February 2008, however, EU officials took issue with the new law, stating that under EU rules such labeling should be voluntary rather than compulsory. Under EU rules, olive oil may be sold as Italian even if it only contains a small amount of Italian oil.
In March 2008, 400 Italian police officers conducted "Operation Golden Oil," arresting 23 people and confiscating 85 farms after an investigation revealed a large-scale scheme to relabel oils from other Mediterranean nations as Italian. In April 2008, another operation impounded seven olive oil plants and arrested 40 people in nine provinces of northern and southern Italy for adding chlorophyll to sunflower and soybean oil and selling it as extra virgin olive oil, both in Italy and abroad. 25,000 liters of the fake oil were seized and prevented from being exported.
Adulterated oil is usually no more serious than passing off inferior, but safe, product as superior olive oil, but there are no guarantees. Almost 700 people died, it is believed, as a consequence of consuming rapeseed (canola) oil adulterated with aniline intended for use as an industrial lubricant, but sold in 1981 as olive oil in Spain (see toxic oil syndrome).
Commercial grades
The grades of oil extracted from the olive fruit can be classified as:
- Virgin means the oil was produced by the use of physical means and no chemical treatment. The term virgin oil referring to production is different from Virgin Oil on a retail label (see next section).
- Refined means that the oil has been chemically treated to neutralize strong tastes (characterized as defects) and neutralize the acid content (free fatty acids). Refined oil is commonly regarded as lower quality than virgin oil; the retail labels extra-virgin olive oil and virgin olive oil cannot contain any refined oil.
- Pomace olive oil means oil extracted from the pomace using chemical solvents, mostly hexane, and by heat.
Quantitative analysis can determine the oil's acidity, defined as the percent, measured by weight, of free oleic acid it contains. This is a measure of the oil's chemical degradation; as the oil degrades, more fatty acids are freed from the glycerides, increasing the level of free acidity and thereby increasing rancidity. Another measure of the oil's chemical degradation is the organic peroxide level, which measures the degree to which the oil is oxidized, another cause of rancidity.
In order to classify it by taste, olive oil is subjectively judged by a panel of professional tasters in a blind taste test. This is also called its organoleptic quality.
Retail grades in IOOC member nations
In countries that adhere to the standards of the IOOC the labels in stores show an oil's grade. The U.S. is not a member.
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