olive

オリーブ

関

Olea europaea

　 　 　 　 　 　 　

WordNet

1. of a yellow-green color similar to that of an unripe olive
2. evergreen tree cultivated in the Mediterranean region since antiquity and now elsewhere; has edible shiny black fruits (同)European olive tree, Olea_europaea
3. hard yellow often variegated wood of an olive tree; used in cabinetwork
4. small ovoid fruit of the European olive tree; important food and source of oil
5. a yellow-green color of low brightness and saturation
6. one-seeded fruit of the European olive tree usually pickled and used as a relish
7. olives picked ripe and cured in brine then dried or pickled or preserved canned or in oil (同)ripe olive

PrepTutorEJDIC

1. 〈C〉『オリーブ』[の木](南欧産の常緑樹) / 〈C〉オリーブの実(ピクルスにしたり,オリーブ油を採る) / (また『olive green』)〈U〉オリーブ色,黄録色 / オリーブの;オリーブ色のの
2. オリーブの冠(古代ギリシアでオリンピア競技の優勝者に与えられた)
3. オリーブの枝(平和の象徴とされる) / 《the ~》平和(善意)のしるし

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/02/23 19:11:02」(JST)

wiki ja

[Wiki ja表示]

『オリーブ』（Olive）は、日本の女性向けファッション雑誌である。マガジンハウスより1982年（昭和57年）に創刊され、2003年8月号をもって休刊した。

沿革

当初は月2回刊。発売時のキャッチコピーは「Magazine for City Girls」。当初は女子大生向けの情報誌として、男性向け雑誌『ポパイ』の姉妹誌という位置づけであった。

1983年（昭和58年）リニューアルされて『ポパイ』より独立。「Magazine for Romantic Girls」のキャッチコピーを掲げ、「リセエンヌ」（lycéenne 仏：lycéeの女子学生）などのライフスタイルを提示、中高生を含む、ティーン向けの文化をキャッチおよび発信する雑誌となった。

2000年（平成12年）7月18日号をもって休刊し、月刊誌にリニューアルされて一時復刊されるが、2003年（平成15年）6月18日発売の8月号をもって再び休刊となった。

2014年（平成26年）マガジンハウスのファッション雑誌『GINZA』6月号の特集「ファッション雑誌を読みましょう」の一企画として復活。「17歳の私へ オリーブが教えてくれたこと」と題し、同誌を支えてきたスタイリストの大森伃佑子の協力のもと、2014年度版『オリーブ』を表現した。マガジンハウスが2015年に迎える70周年の記念事業の一つとして「Oliveプロジェクト」が発足。

2015年（平成27年）3月発売の『GINZA』の別冊付録として約100ページの特別号を発行予定。

現代文化雑誌としての『オリーブ』

『オリーブ』は、特に1980年代においては、実用的なファッション雑誌というより、のちに「ガーリー(＞girlish)」と呼ばれる、新しいタイプの都会的少女文化を提示するサブカルチャー雑誌というべき存在であった。主要読者層の想定としてミッション系、一貫教育校などの中高生や帰国子女を含み、音楽、映画、インテリア、絵本など文化記事に力を入れ、当時『オリーブ』の愛読者でリセエンヌ的なファッションやライフスタイルにこだわる若い女性はオリーブ少女といわれた。

しかし、1990年代以降、読者層としていた10代の女性の指向が以前より現実的なものになり、より実用的なファッション雑誌に読者が流れた。『オリーブ』の提示した先鋭的な美意識が拡散し一般的なものになるにつれ、それまで唯一無二のものであった『オリーブ』の立ち位置が曖昧になってしまったともいえる。1990年代の『オリーブ』は文化や生活全般を題材にするという姿勢は崩さないものの、より地に足のついた実践的な記事が増える傾向にあり、2000年代のスローライフに通じるようなコンセプトが強まっていった。

『オリーブ』的とされる事柄

• 帽子（ニット帽、ベレー帽など）
• 古着
• フランス映画
• カフェ
• アフタヌーン・ティー
• 絵本
• 北欧雑貨
• ハーブティ、アロマ、草花
• オードリー・ヘップバーン
• 手作りのお菓子
• オーガニック・フード
• 薄化粧、ナチュラルメイク
• チープ・シック
• 色鉛筆・クレヨン
• DURALEX（デュラレックス社）のグラス「ピカルディ」
• ネオアコ
• 渋谷系

登場モデル

歴代専属モデル

• 栗尾美恵子 - 初代専属モデルをつとめた。当時外国人モデルの多かった本誌の唯一の日本人専属モデルでもあった。
• ティア&ケリ - 1987年（昭和62年）より専属となった双子モデル。
• 湯沢京（現・湯沢薫） - 1990年代に専属モデルをつとめた。現在はアーティストとしても活躍
• 佐伯日菜子 - 1990年代に専属モデルをつとめた。
• 古谷美央 - 1990年代に専属モデルをつとめた。
• 市川実日子 - 1994年（平成6年）から専属モデルをつとめ、姉の市川実和子とともに誌面に登場することもあった。
• 酒井景都 - 1996年（平成8年）より専属モデルをつとめた。

その他の登場モデル

• 高橋マリ子 - 2000年代の本誌に頻繁に登場していた。

編集者・ライター

編集長

• 淀川美代子 - 1980年代に3代目編集長として、「ロマンティック・ガール」を掲げ本誌のファンタスティックなコンセプトを確立した。
• 遠山こずえ - 1990年代中期に5代目編集長を担当しており、1990年代の本誌の、ナチュラル・生活派指向のコンセプトを推進した。

寄稿ライター

• 1980年代
  • 泉麻人 - 初期に「アボワール徳川」名でコラムを連載していた。
  • 酒井順子 - 泉麻人の後を引きつぎ、1980年代に「マーガレット酒井」の筆名でコラムを執筆していた。
  • 仲世朝子 - 1986年（昭和61年）から、イラストエッセイ「のんちゃんジャーナル」を連載。
  • 山田詠美 - 1988年（昭和63年）から、小説「放課後の音符（キイノート）」を連載。
  • 堀井和子 - 1988年（昭和63年）から、エッセイ「eating」を連載。
• 1990年代
  • 小沢健二 - 1990年代の本誌によく登場していた。1994年（平成6年）から1997年（平成9年）まで「DOOWUTHYALIKE」を連載。
  • 中島らも - 1990年年代にコラム「こちら中島らも事務所」を連載。
  • 平中悠一 - 1990年（平成2年）から、小説「Go! Go! Girls (⇔swing-out Boys)」（第1部47回）を連載。
  • 蜷川実花 - ガーリーフォトの流れを作り、1990年代の本誌によく登場していた。
• 2000年代
  • eri - 2001年（平成13年）からは連載を開始した。
  • 山崎まどか - 2001年から2002年にかけ「東京プリンセス」を連載。
  • しまおまほ - 休刊直前頃に、「ひとりオリーブ調査隊」を連載していた。

関連人物

• 高橋律子 - 1969年（昭和44年）生まれの元読者、金沢21世紀美術館のキュレーター（学芸員）。2012年（平成24年）に同館で開かれた「Olive1982-2003 雑誌『オリーブ』のクリエイティビティ」を企画。

脚注

関連項目

• POPEYE
• BRUTUS
• 森ガール
• ファースト・クラス - 雑誌社を舞台としたフジテレビのドラマ。登場人物が雑誌編集者を志したきっかけとして『Olive』の名が出ている。
• an・an

外部リンク

• Oliveプロジェクト - Facebook
• Olive1982-2003 雑誌『オリーブ』のクリエイティビティ - 金沢21世紀美術館

wiki en

[Wiki en表示]

"Olive grove" and "Olive tree" redirect here. For other uses, see Olive grove (disambiguation) and Olive tree (disambiguation).

This article is about the tree and the fruit. For other uses, see Olive (disambiguation). For olive oil, see Olive oil.

Olive
Olea europaea, Dead Sea, Jordan
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Lamiales
Family:	Oleaceae
Genus:	Olea
Species:	O. europaea
Binomial name
Olea europaea L.

The olive (ⁱ/ˈɒlɪv/ or ⁱ/ˈɑːləv/, Olea europaea, meaning "olive from/of Europe") is a species of small tree in the family Oleaceae, found in much of Africa, the Mediterranean Basin from Portugal to the Levant, the Arabian Peninsula, and southern Asia as far east as China, as well as the Canary Islands, Mauritius and Réunion. The species is cultivated in many places and considered naturalized in France, Corsica, Greece, Albania, Crimea, Egypt, Iran, Iraq, Israel, Italy, Jordan, Palestine, Syria, Lebanon, Java, Norfolk Island, California and Bermuda.

The olive's fruit, also called the olive, is of major agricultural importance in the Mediterranean region as the source of olive oil. The tree and its fruit give its name to the plant family, which also includes species such as lilacs, jasmine, Forsythia and the true ash trees (Fraxinus). The word derives from Latin ŏlīva ("olive fruit", "olive tree"; "olive oil" is ŏlĕum) which is cognate with the Greek ἐλαία (elaía, "olive fruit", "olive tree") and ἔλαιον (élaion, "olive oil"). The oldest attested forms of the latter two words in Greek are respectively the Mycenaean 𐀁𐀨𐀷, e-ra-wa, and 𐀁𐀨𐀺, e-ra-wo or 𐀁𐁉𐀺, e-rai-wo, written in the Linear B syllabic script. The word "oil" in multiple languages ultimately derives from the name of this tree and its fruit.

Description

19th-century illustrations

The olive tree, Olea europaea, is an evergreen tree or shrub native to the Mediterranean, Asia and Africa. It is short and squat, and rarely exceeds 8–15 m (26–49 ft) in height. However, the Pisciottana, a unique variety comprising 40,000 trees found only in the area around Pisciotta in the Campania region of southern Italy often exceeds this, with correspondingly large trunk diameters. The silvery green leaves are oblong, measuring 4–10 cm (1.6–3.9 in) long and 1–3 cm (0.39–1.18 in) wide. The trunk is typically gnarled and twisted.

The small white, feathery flowers, with ten-cleft calyx and corolla, two stamens and bifid stigma, are borne generally on the previous year's wood, in racemes springing from the axils of the leaves.

The fruit is a small drupe 1–2.5 cm (0.39–0.98 in) long, thinner-fleshed and smaller in wild plants than in orchard cultivars. Olives are harvested in the green to purple stage. Canned black olives may contain chemicals (usually ferrous sulfate) that artificially turn them black. Olea europaea contains a seed commonly referred to in American English as a pit or a rock, and in British English as a stone.

Taxonomy

There are six natural subspecies of Olea europaea distributed over a wide range:

• Olea europaea subsp. europaea (Mediterranean Basin)
• Olea europaea subsp. cuspidata (from South Africa throughout East Africa, Arabia to South West China)
• Olea europaea subsp. guanchica (Canaries)
• Olea europaea subsp. cerasiformis (Madeira)
• Olea europaea subsp. maroccana Morocco
• Olea europaea subsp. laperrinei (Algeria, Sudan, Niger)

The subspecies maroccana and cerasiformis are respectively hexaploid and tetraploid.

Wild growing forms of the olive are sometimes treated as the species Olea oleaster.

Cultivars

Main article: List of olive cultivars

There are hundreds of cultivars of the olive tree (Olea europaea). An olive's cultivar has a significant impact on its color, size, shape, and growth characteristics, as well as the qualities of olive oil. Olive cultivars may be used primarily for oil, eating, or both. Olives for consumption are generally referred to as "table olives".

Since many olive cultivars are self-sterile or nearly so, they are generally planted in pairs with a single primary cultivar and a secondary cultivar selected for its ability to fertilize the primary one. In recent times, efforts have been directed at producing hybrid cultivars with qualities such as resistance to disease, quick growth and larger or more consistent crops.

History

Prehistory

The edible olive has been cultivated for at least 5,000 to 6,000 years, with the most ancient evidence of olive cultivation having been found in Syria, Palestine, and Crete. The olive tree is native to the Mediterranean region and Western Asia, and spread to nearby countries from there.

The immediate ancestry of the cultivated olive is unknown. It is assumed that Olea europaea may have arisen from O. chrysophylla in northern tropical Africa and that it was introduced into the countries of the Mediterranean Basin via Egypt and then Crete or the Levant, Syria, Tunisia and Asia Minor. Fossil Olea pollen has been found in Macedonia, Greece, and other places around the Mediterranean, indicating that this genus is an original element of the Mediterranean flora. Fossilized leaves of Olea were found in the palaeosols of the volcanic Greek island of Santorini (Thera) and were dated about 37,000 BP. Imprints of larvae of olive whitefly Aleurolobus (Aleurodes) olivinus were found on the leaves. The same insect is commonly found today on olive leaves, showing that the plant-animal co-evolutionary relations have not changed since that time.

As far back as 3000 BC, olives were grown commercially in Crete; they may have been the source of the wealth of the Minoan civilization.

Americas, Japan

Olives are not native to the Americas. The Spanish colonists brought the olive to the New World where its cultivation prospered in present-day Peru and Chile. The first precious seedlings from Spain were planted in Lima by Antonio de Rivera in 1560. Olive tree cultivation quickly spread along the valleys of South America's dry Pacific coast where the climate was similar to the Mediterranean. The Spanish missionaries established the tree in the 18th century in California. It was first cultivated at Mission San Diego de Alcalá in 1769 or later around 1795. Orchards were started at other missions but in 1838 an inspection found only two olive orchards in California. Oil tree cultivation gradually became a highly successful commercial venture from the 1860s onward. In Japan the first successful planting of olive trees happened in 1908 on Shodo Island which became the cradle of olive cultivation. It is estimated that there are about 865 million olive trees in the world today (as of 2005), and the vast majority of these are found in Mediterranean countries, although traditionally marginal areas account for no more than 25% of olive planted area and 10% of oil production.

Symbolic connotations

See also: Peace symbols

Olive oil has long been considered sacred. The olive branch was often a symbol of abundance, glory and peace. The leafy branches of the olive tree were ritually offered to deities and powerful figures as emblems of benediction and purification, and they were used to crown the victors of friendly games and bloody wars. Today, olive oil is still used in many religious ceremonies. Over the years, the olive has been the symbol of peace, wisdom, glory, fertility, power and purity.

Ancient Egypt

Leafy branches of the olive tree were found in Tutankhamun's tomb.

Ancient Israel and Hebrew Bible

The olive was one of the main elements in ancient Israelite cuisine. Olive oil was used for not only food and cooking, but also lighting, sacrificial offerings, ointment, and anointment for priestly or royal office.

The olive tree is one of the first plants mentioned in the Hebrew Bible and in the Christian Old Testament, and one of the most significant. It was an olive leaf that a dove brought back to Noah to demonstrate that the flood was over (Book of Genesis, 8:11). The olive is listed in Deuteronomy, 8:8 as one of the seven species that are noteworthy products of the Land of Israel.

Ancient Greece

The ancient Greeks used to smear olive oil on their bodies and hair as a matter of grooming and good health.

Olive oil was used to anoint kings and athletes in ancient Greece. It was burnt in the sacred lamps of temples as well as being the "eternal flame" of the original Olympic Games. Victors in these games were crowned with its leaves.

In Homer's Odyssey, Odysseus crawls beneath two shoots of olive that grow from a single stock, and in the Iliad, (XVII.53ff) is a metaphoric description of a lone olive tree in the mountains, by a spring; the Greeks observed that the olive rarely thrives at a distance from the sea, which in Greece invariably means up mountain slopes. Greek myth attributed to the primordial culture-hero Aristaeus the understanding of olive husbandry, along with cheese-making and bee-keeping. Olive was one of the woods used to fashion the most primitive Greek cult figures, called xoana, referring to their wooden material; they were reverently preserved for centuries. It was purely a matter of local pride that the Athenians claimed that the olive grew first in Athens. In an archaic Athenian foundation myth, Athena won the patronship of Attica from Poseidon with the gift of the olive. Though, according to the 4th-century BC father of botany, Theophrastus, olive trees ordinarily attained an age of about 200 years, he mentions that the very olive tree of Athena still grew on the Acropolis; it was still to be seen there in the 2nd century AD; and when Pausanias was shown it, c. 170 AD, he reported "Legend also says that when the Persians fired Athens the olive was burnt down, but on the very day it was burnt it grew again to the height of two cubits." Indeed, olive suckers sprout readily from the stump, and the great age of some existing olive trees shows that it was perfectly possible that the olive tree of the Acropolis dated to the Bronze Age. The olive was sacred to Athena and appeared on the Athenian coinage.

Theophrastus, in On the Nature of Plants, does not give as systematic and detailed an account of olive husbandry as he does of the vine, but he makes clear (in 1.16.10) that the cultivated olive must be vegetatively propagated; indeed, the pits give rise to thorny, wild-type olives, spread far and wide by birds. Theophrastus reports how the bearing olive can be grafted on the wild olive, for which the Greeks had a separate name, kotinos.

Ancient Rome

According to Pliny the Elder a vine, a fig and an olive tree grew in the middle of the Roman Forum, the latter was planted to provide shade (the garden plot was recreated in the 20th century). The Roman poet Horace mentions it in reference to his own diet, which he describes as very simple: "As for me, olives, endives, and smooth mallows provide sustenance." Lord Monboddo comments on the olive in 1779 as one of the foods preferred by the ancients and as one of the most perfect foods.

Storing olives on Dere Street; Tacuinum Sanitatis, 14th century,

Vitruvius describes of the use of charred olive wood in tying together walls and foundations in his De Architectura:

The thickness of the wall should, in my opinion, be such that armed men meeting on top of it may pass one another without interference. In the thickness there should be set a very close succession of ties made of charred olive wood, binding the two faces of the wall together like pins, to give it lasting endurance. For that is a material which neither decay, nor the weather, nor time can harm, but even though buried in the earth or set in the water it keeps sound and useful forever. And so not only city walls but substructures in general and all walls that require a thickness like that of a city wall, will be long in falling to decay if tied in this manner.

New Testament

The Mount of Olives east of Jerusalem is mentioned several times in the New Testament. The Allegory of the Olive Tree in St. Paul's Epistle to the Romans (which reappears in greatly expanded form in the Book of Jacob in the Book of Mormon) refers to the scattering and gathering of Israel. It compares the Israelites to a tame olive tree and the Gentiles to a wild olive branch. The olive tree itself, as well as olive oil and olives, play an important role in the Bible.

Islam

The olive tree and olive oil are mentioned seven times in the Quran, and the olive is praised as a precious fruit. Most notably, it is mentioned in one of the most famous verses of the Quran, Ayat an-Nur: "Allah is The Light of the heavens and the earth; the similitude of His Light is as a niche wherein is a lamp, the lamp in a glass, the glass as it were a glittering star-kindled from a Blessed Tree, an olive that is neither eastern nor western, whose oil would illuminate, even if no fire touched it, Light upon Light; Allah guides to His Light whomever He decides, and Allah strikes similitudes for mankind, and Allah is Ever-Knowing of everything." (Quran, 24:35). Olive tree and olive-oil health benefits have been propounded in Prophetic medicine. Muhammad is reported to have said: "Take oil of olive and massage with it – it is a blessed tree" (Sunan al-Darimi, 69:103).

Olives are substitutes for dates (if not available) during Ramadan fasting, and olive tree leaves are used as incense in some Muslim Mediterranean countries.

Uses

See also: Olive oil

The olive tree, Olea europaea, has been cultivated for olive oil, fine wood, olive leaf, and the olive fruit. 90% of all harvested olives are turned in to oil, while about 10% are used as table olives.

Table Olives

Table olives are classified by the IOC into 3 groups according to the degree of ripeness achieved before harvesting:

1. Green Olives. Picked when they have obtained full size, but before the ripening cycle has begun. Usually shades of green to yellow.

2. Semi-ripe or Turning Colour Olives. Picked at the beginning of the ripening cycle, when the colour has begun to change from green to multi-colour shades of red to brown. Only the skin is coloured as the flesh of the fruit lacks pigmentation at this stage, unlike that of ripe olives.

3. Black Olives or Ripe Olives. Picked at full maturity when fully ripe. Found in assorted shades of purple to brown to black.

Traditional fermentation and curing

An olive vat room used for curing.

Raw or fresh olives are naturally very bitter; to make them palatable, olives must be cured and fermented, thereby removing oleuropein, a bitter phenolic compound that can reach levels of 14% of dry matter in young olives. In addition to oleuropein, other phenolic compounds render freshly picked olives unpalatable and must also be removed or lowered in quantity through curing and fermentation. Generally speaking, phenolics reach their peak in young fruit and are converted as the fruit matures. (One exception is the throubes olive, which can be eaten fresh.) Once ripening occurs the levels of phenolics sharply decline through their conversion to other organic products which renders some cultivars edible immediately.

The curing process may take from a few days, with lye, to a few months with brine or salt packing. With the exception of California style and salt cured olives, all methods of curing involve a major fermentation involving bacteria and yeast that is of equal importance to the final table olive product. Traditional cures, using the natural microflora on the fruit to induce fermentation, lead to two important outcomes: the leaching out and breakdown of oleuropein and other unpalatable phenolic compounds, and the generation of favourable metabolites from bacteria and yeast, such as organic acids, probiotics, glycerol and esters, which affect the sensorial properties of the final table olives. The probiotic qualities of mixed bacterial/yeast olive fermentations are only recently being explored. Of all the metabolites lactic acid is the most important as it acts as a natural preservative lowering the pH of the solution to make the final product more stable against the growth of unwanted pathogenic species. The result is table olives which will store with or without refrigeration, and thus lactic acid bacteria (LAB) dominated fermentations are generally considered the most suitable method of curing olives. Yeast dominated fermentations produce a different suite of metabolites which have less self-preservation characteristics and therefore acid corrected, often with citric acid, in the final processing stage to achieve microbial stability.

There are many types of preparations for table olives depending on local tastes and traditions. The most important commercial examples are:

Spanish or Sevillian type (Olives with fermentation). Most commonly applied to green olive preparation. Around 60% of all the worlds table olives are produced with this method. Olives are soaked in lye (Dilute NaOH, 2-4%) for 8–10 hours to hydrolyse the oleuropein. They are usually considered "treated" when the lye has penetrated two-thirds of the way into the fruit. They are then washed once or several times in water to remove the caustic solution and transferred to fermenting vessels full of brine at typical concentrations of 8-12% NaCl. The brine is changed on a regular basis to help remove the phenolic compounds. Fermentation is carried out by the natural microbiota present on the olives that survive the lye treatment process. Many organisms are involved, usually reflecting the local conditions or "Terroir" of the olives. During a typical fermentation gram-negative enterobacteria flourish in small numbers at first, but are rapidly outgrown by Lactic acid bacteria species such as Leuconostoc mesenteroides, Lactobacillus plantarum, Lactobacillus brevis and Pediococcus damnosus. These bacteria produce lactic acid to help lower the acidity of the brine and therefore stabilize the product against unwanted pathogenic species. A diversity of yeasts then accumulate in sufficient numbers to help complete the fermentation alongside the lactic acid bacteria. Yeast commonly mentioned include the teleomorphs Pichia anomala, Pichia membranifaciens, Debaryomyces hansenii and Kluyveromyces marxianus. Once fermented, the olives are placed in fresh brine and acid corrected ready for market.

Sicilian or Greek type. (Olives with fermentation). Applied to green, semi-ripe and ripe olives. Almost identical the Spanish type fermentation process, however the lye treatment process is skipped and the olives are placed directly in fermentation vessels full of brine (8-12% NaCl). The brine is changed on a regular basis to help remove the phenolic compounds. As the caustic treatment is avoided, Lactic acid bacteria are only present in similar numbers to yeast and appear to be outcompeted by the abundant yeasts found on untreated olives. As there is very little acid produced by the yeast fermentation, lactic, acetic, or citric acid is often added to the fermentation stage to stabilize the process.

Picholine or directly-brined type. (Olives with fermentation). Can be applied to green, semi-ripe or ripe preparations. Olives are soaked in lye typically for longer periods than Spanish style (e.g. 10–72 hours) until the solution has penetrated three-quarters of the way into the fruit. They are then washed and immediately brined and acid corrected with citric acid to achieve microbial stability. Fermentation still occurs carried out by acidogenic yeast and bacteria, but is more subdued than other methods. The brine is changed on a regular basis to help remove the phenolic compounds and a series of progressively stronger concentrations of NaCl are added until the product is fully stabilized and ready to be eaten.

Water-cured type. (Olives with fermentation). Can be applied to green, semi-ripe or ripe preparations. Olives are soaked in water or weak brine and this solution is changed on a daily basis for 10–14 days. The oleuropein in naturally dissolved and leached into the water and removed during a continual soak-wash cycle. Fermentation takes place during the water treatment stage and involves a mixed yeast/bacteria ecosystem. Sometimes, the olives are lightly cracked with a hammer or a stone to trigger fermentation and speed up the fermentation process. Once debittered the olives are brined to concentrations of 8-12% NaCl, acid corrected and ready to eat.

Salt-cured type. (Olives with minor fermentation). Applied only to ripe olives and usually produced in Morocco or Turkey and other eastern Mediterranean countries. Once picked, the olives are vigorously washed and packed in alternating layers with salt. The high concentrations of salt draw the moisture out of olives, dehydrating and shrivelling them until they look somewhat analogous to a raisin. Once packed in salt fermentation is minimal and only initiated by the most halophilic yeast species such as Debaryomyces hansenii. Once cured, they are sold in their natural state without any additives.

California or "artificial ripening" type. (Olives without fermentation). Applied to green and semi-ripe olives. Olives are placed in lye and soaked. Upon their removal they are washed in water injected with compressed air. This process is repeated several times until both oxygen and lye have soaked through to the pit. The repeated, saturated exposure to air oxidises the skin and flesh of the fruit, turning it black in an artificial process that mimics natural ripening. Once fully oxidised or "blackened", they are brined and acid corrected ready for eating.

Olive wood

Olive wood is very hard and is prized for its durability, colour, high combustion temperature and interesting grain patterns. Because of the commercial importance of the fruit, and the relatively small size of the tree, olive wood and its products are relatively expensive. Common uses of the wood include: kitchen utensils, carved wooden bowls, cutting boards, fine furniture, and decorative items.

Cultivation

An example of ripe black olives

The earliest evidence for the domestication of olives comes from the Chalcolithic Period archaeological site of Teleilat Ghassul in what is today modern Jordan. Farmers in ancient times believed that olive trees would not grow well if planted more than a certain distance from the sea; Theophrastus gives 300 stadia (55.6 km or 34.5 mi) as the limit. Modern experience does not always confirm this, and, though showing a preference for the coast, they have long been grown further inland in some areas with suitable climates, particularly in the southwestern Mediterranean (Iberia, northwest Africa) where winters are mild.

Olive plantation in Andalucía, Spain

Olives are now cultivated in many regions of the world with Mediterranean climates, such as South Africa, Chile, Peru, Australia, and California and in areas with temperate climates such as New Zealand, under irrigation in the Cuyo region in Argentina which has a desert climate. They are also grown in the Córdoba Province, Argentina, which has a temperate climate with rainy summers and dry winters (Cwa). The climate in Argentina changes the external characteristics of the plant but the fruit keeps its original features. The northernmost olive grove is placed in Anglesey, an island off the north west coast of Wales, in the United Kingdom: but it is too early to say if the growing will be successful, having been planted in 2006.

Olives at a market in Toulon, France

Growth and propagation

Olive trees on Thassos, Greece

Olive trees, Olea europaea, show a marked preference for calcareous soils, flourishing best on limestone slopes and crags, and coastal climate conditions. They grow in any light soil, even on clay if well drained, but in rich soils they are predisposed to disease and produce poorer oil than in poorer soil. (This was noted by Pliny the Elder.) Olives like hot weather and sunny positions without any shade while temperatures below −10 °C (14 °F) may injure even a mature tree. They tolerate drought well, thanks to their sturdy and extensive root system. Olive trees can live for several centuries and can remain productive for as long if they are pruned correctly and regularly.

In situations where extreme cold has damaged or killed the olive tree the rootstock can survive and produce new shoots which in turn become new trees. In this way olive trees can regenerate themselves. In Tuscany in 1985 a very severe frost destroyed many productive, and aged, olive trees and ruined many farmers' livelihoods. However new shoots appeared in the spring and, once the dead wood was removed, became the basis for new fruit-producing trees. In this way an olive tree can 'live' for centuries or even millennia.

Olives grow very slowly, and over many years the trunk can attain a considerable diameter. A. P. de Candolle recorded one exceeding 10 m (33 ft) in girth. The trees rarely exceed 15 m (49 ft) in height, and are generally confined to much more limited dimensions by frequent pruning. The yellow or light greenish-brown wood is often finely veined with a darker tint; being very hard and close-grained, it is valued by woodworkers. There are only a handlful of olive varieties that can be used to cross-pollinate. Pendolino olive trees are partially self-fertile, but pollenizers are needed for a large fruit crop. Other compatible olive tree pollenizers include Leccino and Maurino. Pendolino olive trees are used extensively as pollenizers in large olive tree groves.

Olives are propagated by various methods. The preferred ways are cuttings and layers; the tree roots easily in favourable soil and throws up suckers from the stump when cut down. However, yields from trees grown from suckers or seeds are poor; they must be budded or grafted onto other specimens to do well (Lewington and Parker, 114). Branches of various thickness cut into lengths of about 1 m (3.3 ft) planted deeply in manured ground soon vegetate. Shorter pieces are sometimes laid horizontally in shallow trenches and, when covered with a few centimetres of soil, rapidly throw up sucker-like shoots. In Greece, grafting the cultivated tree on the wild tree is a common practice. In Italy, embryonic buds, which form small swellings on the stems, are carefully excised and planted under the soil surface, where they soon form a vigorous shoot.

The olive is also sometimes grown from seed. To facilitate germination, the oily pericarp is first softened by slight rotting, or soaked in hot water or in an alkaline solution.

Where the olive is carefully cultivated, as in Languedoc and Provence, the trees are regularly pruned. The pruning preserves the flower-bearing shoots of the preceding year, while keeping the tree low enough to allow the easy gathering of the fruit. The spaces between the trees are regularly fertilized. The crop from old trees is sometimes enormous, but they seldom bear well two years in succession, and in many cases a large harvest occurs every sixth or seventh season.

Old olive trees

Olive tree older than 1,500 years, Kaštela, Croatia Olive tree in Bar, Montenegro that is over 2,000 years old Olive tree, Karystos, Euboia, Greece An ancient olive tree in Pelion, Greece

The olive tree, Olea europaea, is very hardy: drought-, disease- and fire-resistant, it can live to a great age. Its root system is robust and capable of regenerating the tree even if the above-ground structure is destroyed. The older the olive tree, the broader and more gnarled the trunk becomes. Many olive trees in the groves around the Mediterranean are said to be hundreds of years old, while an age of 2,000 years is claimed for a number of individual trees; in some cases, this has been scientifically verified.

Pliny the Elder told about a sacred Greek olive tree that was 1,600 years old. An olive tree in west Athens, named "Plato's Olive Tree", was said to be a remnant of the grove within which Plato's Academy was situated, which would make it approximately 2,400 years old. The tree comprised a cavernous trunk from which a few branches were still sprouting in 1975, when a traffic accident caused a bus to fall on and uproot it. Since then, the trunk has been preserved and displayed in the nearby Agricultural University of Athens. A supposedly older tree, the "Peisistratos Tree", is located by the banks of the Cephisus River, in the municipality of Agioi Anargyroi, and is said to be a remnant of an olive grove that was planted by Athenian tyrant Peisistratos in the 6th century BC. Numerous ancient olive trees also exist near Pelion in Greece. The age of an olive tree in Crete, the Finix Olive is claimed to be over 2,000 years old; this estimate is based on archaeological evidence around the tree.

An olive tree in Algarve, Portugal, is 2000 years old, according to radiocarbon dating.

An olive tree in Bar, Montenegro, is claimed to be over 2,000 years old.

An olive tree on the island of Brijuni (Brioni), Istria in Croatia, has been calculated to be about 1,600 years old. It still gives fruit (about 30 kg or 66 lb per year), which is made into top quality olive oil.

The town of Bshaale, Lebanon claims to have the oldest olive trees in the world (4000 BC for the oldest), but no scientific study supports these claims. Other trees in the towns of Amioun appear to be at least 1,500 years old.

There are dozens of ancient olive trees throughout Israel and Palestine whose age has earlier been estimated to be 1,600–2,000 years old; however, these estimates could not be supported by current scientific practices. Ancient trees include two giant olive trees in Arraba and five trees in Deir Hanna, both in the Galilee region, which have been determined to be over 3,000 years old, although there is no available data to support the credibility of the study that produced these age estimates and as such the 3000 years age estimate can not be considered valid. All seven trees continue to produce olives. Several trees in the Garden of Gethsemane (from the Hebrew words "gat shemanim" or olive press) in Jerusalem are claimed to date back to the purported time of Jesus.

Some Italian olive trees are believed to date back to Roman times, although identifying progenitor trees in ancient sources is difficult. A tree located in Santu Baltolu di Carana (municipality of Luras) in Sardinia, Italy, named with respect as the Ozzastru by the inhabitants of the region, is claimed to be 3,000 to 4,000 years old according to different studies. There are several other trees of about 1,000 years old within the same garden. The 15th-century trees of Olivo della Linza located in Alliste province of Lecce in Puglia were noted by Bishop Ludovico de Pennis during his pastoral visit to the Roman Catholic Diocese of Nardò-Gallipoli in 1452.

Pests, diseases, and weather

There are various pathologies that can affect olives. The most serious pest is the olive fruit fly (Dacus oleae or Bactrocera oleae) which lays its eggs in the olive most commonly just before it becomes ripe in the autumn. The region surrounding the puncture rots, becomes brown and takes a bitter taste making the olive unfit for eating or for oil. For controlling the pest the practice has been to spray with insecticides (organophosphates, e.g. dimethoate). Classic organic methods have now been applied such as trapping, applying the bacterium Bacillus thuringiensis and spraying with kaolin. Such methods are obligatory for organic olives.

A fungus, Cycloconium oleaginum, can infect the trees for several successive seasons, causing great damage to plantations. A species of bacterium, Pseudomonas savastanoi pv. oleae, induces tumour growth in the shoots. Certain lepidopterous caterpillars feed on the leaves and flowers.

A pest which spreads through olive trees is the black scale bug, a small black scale insect that resembles a small black spot. They attach themselves firmly to olive trees and reduce the quality of the fruit; their main predators are wasps. The curculio beetle eats the edges of leaves, leaving sawtooth damage.

Rabbits eat the bark of olive trees and can do considerable damage, especially to young trees. If the bark is removed around the entire circumference of a tree it is likely to die. Voles and mice also do damage by eating the roots of olives.

At the northern edge of their cultivation zone, for instance in Southern France and north-central Italy, olive trees suffer occasionally from frost. Gales and long-continued rains during the gathering season also cause damage.

As an invasive species

Olives as invasive weeds, Adelaide Hills, Australia

Since its first domestication, Olea europaea has been spreading back to the wild from planted groves. Its original wild populations in southern Europe have been largely swamped by feral plants.

In some other parts of the world where it has been introduced, most notably South Australia, the olive has become a major woody weed that displaces native vegetation. In South Australia, its seeds are spread by the introduced red fox and by many bird species, including the European starling and the native emu, into woodlands, where they germinate and eventually form a dense canopy that prevents regeneration of native trees. As the climate of South Australia is very dry and bushfire prone, the oil rich feral olive tree substantially increases the fire hazard of native sclerophyll woodlands.

Fruit harvest and processing

Ripening Black Olives.

Olives are harvested in the autumn and winter. More specifically in the Northern hemisphere, green olives are picked at the end of September to about the middle of November. Blond olives are picked from the middle of October to the end of November, and black olives are collected from the middle of November to the end of January or early February. In southern Europe, harvesting is done for several weeks in winter, but the time varies in each country, and with the season and the cultivar.

Most olives today are harvested by shaking the boughs or the whole tree. Using olives found lying on the ground can result in poor quality oil, due to damage. Another method involves standing on a ladder and "milking" the olives into a sack tied around the harvester's waist. This method produces high quality oil. A third method uses a device called an oli-net that wraps around the tree trunk and opens to form an umbrella-like catcher from which workers collect the fruit. Another method uses an electric tool, 'the oliviera', that has large tongs that spin around quickly, removing fruit from the tree. Olives harvested by this method are used for oil.

Table olive varieties are more difficult to harvest, as workers must take care not to damage the fruit; baskets that hang around the worker's neck are used. In some places in Italy, Croatia, and Greece, olives are harvested by hand because the terrain is too mountainous for machines. As a result, the fruit is not bruised, which leads to a superior finished product. The method also involves sawing off branches, which is healthy for future production.

The amount of oil contained in the fruit differs greatly by cultivar; the pericarp is usually 60–70% oil. Typical yields are 1.5–2.2 kg (3.3–4.9 lb) of oil per tree per year.

Production

Olives are one of the most extensively cultivated fruit crops in the world. In 2011 there were about 9.6 million hectares planted with olive trees, which is more than twice the amount of land devoted to apples, bananas or mangoes. Only coconut trees and oil palms command more space. Cultivation area tripled from 2,600,000 to 7,950,000 hectares (6,400,000 to 19,600,000 acres) between 1960 and 1998 and reached a 10 million ha peak in 2008. The ten largest producing countries, according to the Food and Agriculture Organization, are all located in the Mediterranean region and produce 95% of the world's olives.

Main countries of production (Year 2011 per FAOSTAT) Rank Country/Region Production (in tons) Cultivated area (in hectares) Yield (q/Ha) — World 19,845,300 9,634,576 20.598 01 Spain 7,820,060 2,330,400 29.781 02 Italy 3,182,204 1,144,420 27.806 03 Greece 2,000,000 850,000 23.529 04 Turkey 1,750,000 798,493 21.916 05 Morocco 1,415,902 597,513 22.839 06 Syria 1,095,043 684,490 15.997 07 Algeria 610,776 295,000 14.237 08 Tunisia 562,000 1,779,950 4.848 09 Egypt 459,650 52,668 87.273 10 Portugal 443,800 343,200 12.931

Nutrition

Olives, green

Marinated green olives
Nutritional value per 100 g (3.5 oz)
Energy	609 kJ (146 kcal)
Carbohydrates	3.84 g
Sugars	0.54 g
Dietary fiber	3.3 g
Fat	15.32 g
Saturated	2.029 g
Monounsaturated	11.314 g
Polyunsaturated	1.307 g
Protein	1.03 g
Vitamins
Vitamin A equiv. beta-carotene lutein zeaxanthin	(3%) 20 μg (2%) 231 μg 510 μg
Thiamine (B1)	(2%) 0.021 mg
Riboflavin (B2)	(1%) 0.007 mg
Niacin (B3)	(2%) 0.237 mg
Vitamin B6	(2%) 0.031 mg
Folate (B9)	(1%) 3 μg
Choline	(3%) 14.2 mg
Vitamin E	(25%) 3.81 mg
Vitamin K	(1%) 1.4 μg
Trace metals
Calcium	(5%) 52 mg
Iron	(4%) 0.49 mg
Magnesium	(3%) 11 mg
Phosphorus	(1%) 4 mg
Potassium	(1%) 42 mg
Sodium	(104%) 1556 mg
Link to USDA Database entry
Units μg = micrograms • mg = milligrams IU = International units
Percentages are roughly approximated using US recommendations for adults. Source: USDA Nutrient Database

Olive tree parts, and olive oil, have a number of common phenolic compounds that might possess positive health effect to the human body, as well as a good source of Vitamin E. The processing of olives (fruit) especially affects their phenolic content, but other parts of the plant also contain phenolics, such as leaves and bark.

The addition of iron salts such as Iron(II) gluconate, as commonly in canned olives, drastically reduces phenolic content, especially hydroxytyrosol. Total polyphenol contents, as measured by the Folin method, are 117 mg/100 g in black olives and 161 mg/100 g in green olives, as compared to 55 and 21 mg/100 g for extra virgin and virgin olive oil respectively. Olive fruit contain several types of polyphenols, mainly tyrosols, phenolic acids, flavonols and flavones, and for black olives, anthocyanins. During the crushing, kneading and extraction of olive fruit to obtain olive oil, the glycosidic oleuropein, demethyloleuropein and ligstroside are hydrolyzed by endogenous Beta-glucosidases, to form aldehydic aglycones. The aglycones become soluble in the oil phase, whereas the glycosides remain in the water phase, fresh cloudy olive oil contains has the added benefit of these water phase phenolics. Lignans are also found in olive fruit and oils.

Among the phenolics are:

• tyrosols (most abundant)
  • oleuropein 72 mg/100g (black) and 56 mg/100g (green)
  • free hydroxytyrosol （3,4-DHPEA）82 mg/100g (black) and 59 mg/100g (green)
  • demethyloleuropein 23 mg/100g (black) and 13 mg/100g (green)
  • oleoside (young fruit)
  • Hydroxytyrosol-elenolate
  • Hydroxytyrosol-1-glucoside
  • Hydroxytyrosol-4-glucoside
  • oleoside-methylester
  • 3,4-DHPEA-EDA in fruit but more in olive oils.
• Coumaric acids, all 3 types o, m, and p.
• anthocyanins -fruit only
  • 3-O-rutinoside
  • cyanidin 3-O-glucoside
• flavonols—fruit only
  • Quercetin 3-O-rutinoside
  • Quercetin 3-O-rhamnoside
• Flavones
  • Luteolin 7-O-glucoside - major
  • Luteolin
  • luteolin 6-C-glucoside
  • apigenin 7-O-glucoside
  • apigenin 7-O-rutinoside
• methyl acetal of the aglycone of ligstroside
• ß-hydroxytyrosol ester of methyl malate
• Verbascoside
• sinapic acid
• syringic acid
• protocatechuic acid
• 4-hydroxybenzoic acid
• p-hydroxyphenylpropanoic acid
• 4-hydroxyphenylacetic acid
• 3-methoxy-4-hydroxyphenylacetic acid
• ferulic acid
• caffeic acid

Gallery

• Olive in Paiania, Greece.

• Centuries old olive tree, Portugal

• Olive tree leaves

• Olive tree, Israel

• Olive tree trunk

• Olive flowers

• Olivo della Linza. 15th century

• A young olive plant, germinated from a seed

• Cailletier cultivar, with an olive harvest net on the ground, Contes, France

• Olive tree, Sithonia, Greece,

• Olive fruits, Sardinia

• Olive tree, Nepal

• Olive trees on Shōdo Island, Japan

• Olive trees in the famous Turkish oil region of Edremit District

See also

• Battle of the Olive Grove of Koundouros
• Candida tropicalis
• Moria (tree)
• Oil-tree
• Olive oil
• Phytochemical
• Polyphenol antioxidant
• Zeitoun (disambiguation)

References

External links

Wikimedia Commons has media related to: Olea europaea or Olives

• Blue planet biomes: Olive trees — Olea europaea — cultivation history + horticulture.
• Agricultural Research Service (ARS); Germplasm Resources Information Network (GRIN): Olea europaea — species treatment, native range, + links.
• USDA Plants Profile for Olea europaea ssp. europaea (European olive)
• USDA Plants Profile for Olea europaea ssp. cuspidata (African olive)
• Olive trees (Olea europaea) — U.C. Photo gallery
• Olives at DMOZ
•  "Olive". Encyclopedia Americana. 1920. 

UpToDate Contents

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English Journal

• Determination of volatile compounds by GC-IMS to assign the quality of virgin olive oil.

• Garrido-Delgado R1, Dobao-Prieto Mdel M1, Arce L1, Valcárcel M2.
• Food chemistry.Food Chem.2015 Nov 15;187:572-9. doi: 10.1016/j.foodchem.2015.04.082. Epub 2015 Apr 24.
• The characterisation of different olive oil categories (extra virgin, virgin and lampante) using Ion Mobility Spectrometry (IMS) was improved by replacing the multicapillary column (MCC) with a capillary column (CC). The data obtained with MCC-IMS and CC-IMS were evaluated, studying both the global
• PMID 25977065

• Near and mid infrared spectroscopy and multivariate data analysis in studies of oxidation of edible oils.

• Wójcicki K1, Khmelinskii I2, Sikorski M3, Sikorska E4.
• Food chemistry.Food Chem.2015 Nov 15;187:416-23. doi: 10.1016/j.foodchem.2015.04.046. Epub 2015 Apr 21.
• Infrared spectroscopic techniques and chemometric methods were used to study oxidation of olive, sunflower and rapeseed oils. Accelerated oxidative degradation of oils at 60°C was monitored using peroxide values and FT-MIR ATR and FT-NIR transmittance spectroscopy. Principal component analysis (PCA
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• Identification of olive oil sensory defects by multivariate analysis of mid infrared spectra.

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• Rubio-Senent F1, Martos S2, Lama-Muñoz A1, Fernández-Bolaños JG2, Rodríguez-Gutiérrez G1, Fernández-Bolaños J3.
• Food chemistry.Food Chem.2015 Nov 15;187:166-73. doi: 10.1016/j.foodchem.2015.04.022. Epub 2015 Apr 14.
• The application of an industrial process based on the hydrothermal treatment of 160°C/60min of alperujo, a by-product of olive oil extraction, allows the formation of a liquid phase containing a high concentration of phenolic and secoiridoid compounds. Ethyl acetate was used to extract these phenol
• PMID 25977012

Japanese Journal

• アンダルシアの風 : スペインの裏と表の食事情(第33回)日本で流行のオリーブオイルとスペイン伝統的市場の変化

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★リンクテーブル★

リンク元	「オリーブ」「Olea europaea」
拡張検索	「olive oil」

「オリーブ」

　　[★]

英

olive

ラ

oliva

同

橄欖 かんらん

• オリーブ核
• 背側オリーブ核
• 内側副オリーブ核
• オリーブ核は錐体外路系に所属する
• オリーブ核はオリーブ脊髄路、オリーブ小脳路の起始
• オリーブ核は中心被蓋路が終止

「Olea europaea」

　　[★]

オリーブ

関

olive

「olive oil」

　　[★]

• オリーブ油、オリブ油