Olive oil in the context of "Oil"

⭐ In the context of oil, a key characteristic defining substances like olive oil is their interaction with water and other similar compounds. How are oils generally classified in terms of their miscibility?

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⭐ Core Definition: Olive oil

Olive oil is a vegetable oil obtained by pressing whole olives (the fruit of Olea europaea, a traditional tree crop of the Mediterranean Basin) and extracting the oil.

It is commonly used in cooking for frying foods, as a condiment, or as a salad dressing. It can also be found in some cosmetics, pharmaceuticals, soaps, and fuels for traditional oil lamps. It also has additional uses in some religions. The olive is one of three core food plants in Mediterranean cuisine, with wheat and grapes. Olive trees have been cultivated around the Mediterranean since the 8th millennium BC.

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👉 Olive oil in the context of Oil

Oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) and lipophilic (mixes with other oils). Oils are usually flammable and surface active. Most oils are unsaturated lipids that are liquid at room temperature.

The general definition of oil includes classes of chemical compounds that may be otherwise unrelated in structure, properties, and uses. Oils may be animal, vegetable, or petrochemical in origin, and may be volatile or non-volatile. They are used for food (e.g., olive oil), fuel (e.g., heating oil), medical purposes (e.g., mineral oil), lubrication (e.g. motor oil), and the manufacture of many types of paints, plastics, and other materials. Specially prepared oils are used in some religious ceremonies and rituals as purifying agents.

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Olive oil in the context of Olive trees

The olive (botanical name Olea europaea, "European olive") is a species of subtropical evergreen tree in the family Oleaceae. Originating in Asia Minor, it is abundant throughout the Mediterranean Basin, with wild subspecies in Africa and western Asia; modern cultivars are traced primarily to the Near East, Aegean Sea, and Strait of Gibraltar. The olive is the type species for its genus, Olea, and lends its name to the Oleaceae plant family, which includes lilac, jasmine, forsythia, and ash. The olive fruit is classed botanically as a drupe, similar in structure and function to the cherry or peach. The term oil—now used to describe any viscous water-insoluble liquid—was originally synonymous with olive oil, the liquid fat derived from olives.

The olive has deep historical, economic, and cultural significance in the Mediterranean. It is among the oldest fruit trees domesticated by humans, being first cultivated in the Eastern Mediterranean between 6,000 and 4,000 BC, most likely in the Levant. The olive gradually disseminated throughout the Mediterranean via trade and human migration starting in the 16th century BC; it took root in Crete around 3500 BC and reached Iberia by about 1050 BC. Olive cultivation was vital to the growth and prosperity of various Mediterranean civilizations, from the Minoans and Myceneans of the Bronze Age to the Greeks and Romans of classical antiquity.

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Olive oil in the context of Vegetable oil

Vegetable oils, or vegetable fats, are oils extracted from seeds or from other parts of edible plants. Like animal fats, vegetable fats are mixtures of triglycerides. Soybean oil, grape seed oil, and cocoa butter are examples of seed oils, or fats from seeds. Olive oil, palm oil, and rice bran oil are examples of fats from other parts of plants. In common usage, vegetable oil may refer exclusively to vegetable fats which are liquid at room temperature. Vegetable oils are usually edible.

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Olive oil in the context of Marseille soap

Marseille soap or Savon de Marseille (French pronunciation: [savɔ̃ maʁsɛj] ) is a traditional hard soap made from vegetable oils that has been produced around Marseille, France, for about 600 years. The first documented soapmaker was recorded from the city in about 1370. By 1688, Louis XIV introduced regulations in the Edict of Colbert limiting the use of the name Savon de Marseille to olive oil based soaps. The law has since been amended to allow other vegetable oils to be used.

By 1913, production had reached 180,000 tons. Thus, in 1924, there were 122 soapmaking companies in the Marseille and Salon-de-Provence areas combined. However as of 2023, there were only four remaining, all part of an association called Union des Professionnels du Savon de Marseille (UPSM).

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Olive oil in the context of Eternal fire

An eternal flame is a flame, lamp or torch that burns for an indefinite time. Most eternal flames are ignited and tended intentionally. However, some are natural phenomena caused by natural gas leaks, peat fires and coal seam fires, all of which can be initially ignited by lightning, piezoelectricity or human activity, some of which have burned for hundreds or thousands of years.

In ancient times, eternal flames were fueled by wood or olive oil; modern examples usually use a piped supply of propane or natural gas. Human-created eternal flames most often commemorate a person or event of national significance, serve as a symbol of an enduring nature such as a religious belief, or a reminder of commitment to a common goal, such as diplomacy.

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Olive oil in the context of Ionian Islands under Venetian rule

The Ionian Islands were an overseas possession of the Republic of Venice from the mid-14th century until the late 18th century. The conquest of the islands took place gradually. The first to be acquired was Cythera and the neighboring islet of Anticythera, indirectly in 1238 and directly after 1363. In 1386 the Council of Corfu, which was the governing body of the island, voted to make Corfu a vassal of Venice. During the Venetian period the Council remained the most powerful institution on the island. A century later, Venice captured Zante in 1485, Cephalonia in 1500 and Ithaca in 1503. These three islands modelled their administration on Corfu's model and formed their own councils. The conquest was completed in 1718 with the capture of Lefkada. Each of the islands remained part of the Venetian Stato da Màr until Napoleon Bonaparte dissolved the Republic of Venice in 1797. The Ionian Islands are situated in the Ionian Sea, off the west coast of Greece. Cythera, the southernmost, is just off the southern tip of the Peloponnese and Corfu, the northernmost, is located at the entrance of the Adriatic Sea. It is believed that the Venetian period on the Ionian Islands was generally prosperous, especially compared with the coinciding TourkokratiaTurkish rule over the remainder of present-day Greece.

The governor of the Ionian Islands during the Venetian period was the Provveditore generale da Mar, who resided on Corfu. Additionally, each island's authorities were divided into the Venetian and the domestic authorities. The economy of the islands was based on exporting local goods, primarily raisins, olive oil and wine, whereas Venetian lira, the currency of Venice, was also the currency of the islands. Some features of the culture of Venice were incorporated in the culture of the Ionian Islands, thus influencing to this day local music, cuisine and language.

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Olive oil in the context of Screw press

A screw press is a type of machine press in which the ram is driven up and down by a screw. The screw shaft can be driven by a handle or a wheel. It works by using a coarse screw to convert the rotation of the handle or drive-wheel into a small downward movement of greater force. The overhead handle usually incorporates balls as flyweights. The weights helps to maintain the momentum and thrust of the tool to make it easier to operate.

The screw press was first invented and used by the Romans in the first century AD. It was used primarily in wine and olive oil production. The screw press was also used in Gutenberg's printing press in the mid-15th century.

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