A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus Vitis .
In botany, a berry is a fleshy fruit without a stone produced from a single flower containing one ovary. Berries so defined include grapes, currants, and tomatoes, as well as cucumbers, eggplants (aubergines) and bananas, but exclude certain fruits commonly called berries, such as strawberries and raspberries. The berry is the most common type of fleshy fruit in which the entire outer layer of the ovary wall ripens into a potentially edible "pericarp". Berries may be formed from one or more carpels from the same flower. The seeds are usually embedded in the fleshy interior of the ovary, but there are some non-fleshy exceptions, such as peppers, with air rather than pulp around their seeds.
In the fields of horticulture and botany, the term deciduous (/dɪˈsɪdʒuəs/) means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, after flowering; and to the shedding of ripe fruit.
A vine is any plant with a growth habit of trailing or scandent stems, lianas or runners. The word vine can also refer to such stems or runners themselves, for instance, when used in wicker work.
Grapes can be eaten fresh as table grapes or they can be used for making wine, jam, juice, jelly, grape seed extract, raisins, vinegar, and grape seed oil. Grapes are a non-climacteric type of fruit, generally occurring in clusters.
Table grapes are grapes intended for consumption while fresh, as opposed to grapes grown for wine production, juice production, or for drying into raisins.
The climacteric is a stage of fruit ripening associated with increased ethylene production and a rise in cellular respiration. Apples, bananas, melons, apricots, and tomatoes are climacteric fruit. Citrus, grapes, and strawberries are not climacteric. However, nonclimacteric melons and apricots exist, and grapes and strawberries harbour several active ethylene receptors. Climacteric is the final physiological process that marks the end of fruit maturation and the beginning of fruit senescence. Its defining point is the sudden rise in respiration of the fruit, and normally takes place without any external influences. After the climacteric period, respiration rates return to or dip below the pre-climacteric rates. The climacteric event also leads to other changes in the fruit, including pigment changes and sugar release. For those fruits raised as food, the climacteric event marks the peak of edible ripeness, with fruits having the best taste and texture for consumption. After the event, fruits are more susceptible to fungal invasion and begin to be degraded by cell death.
|Nutritional value per 100 g (3.5 oz)|
|Energy||288 kJ (69 kcal)|
|Dietary fiber||0.9 g|
|Pantothenic acid (B5)|
|†Percentages are roughly approximated using US recommendations for adults. |
Source: USDA Nutrient Database
The cultivation of the domesticated grape began 6,000–8,000 years ago in the Near East.Yeast, one of the earliest domesticated microorganisms, occurs naturally on the skins of grapes, leading to the discovery of alcoholic drinks such as wine. The earliest archeological evidence for a dominant position of wine-making in human culture dates from 8,000 years ago in Georgia.
The Near East is a geographical term that roughly encompasses a transcontinental region centered on Western Asia, Turkey, and Egypt. Despite having varying definitions within different academic circles, the term was originally applied to the maximum extent of the Ottoman Empire. The term has fallen into disuse in English and has been replaced by the terms Middle East, which includes Egypt, and West Asia, which includes the Transcaucasus.
A microorganism, or microbe, is a microscopic organism, which may exist in its single-celled form or in a colony of cells.
Georgia is a country in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded to the west by the Black Sea, to the north by Russia, to the south by Turkey and Armenia, and to the southeast by Azerbaijan. The capital and largest city is Tbilisi. Georgia covers a territory of 69,700 square kilometres (26,911 sq mi), and its 2017 population is about 3.718 million. Georgia is a unitary semi-presidential republic, with the government elected through a representative democracy.
The oldest known winery was found in Armenia, dating to around 4000 BC.By the 9th century AD the city of Shiraz was known to produce some of the finest wines in the Middle East. Thus it has been proposed that Syrah red wine is named after Shiraz, a city in Persia where the grape was used to make Shirazi wine.
The Areni-1 winery is a 6100-year-old winery that was discovered in 2007 in the Areni-1 cave complex in the village of Areni in the Vayots Dzor province of Armenia by a team of Armenian and Irish archaeologists. The excavations were carried out by Boris Gasparyan of the Institute of Archaeology and Ethnography of the National Academy of Sciences of Armenia and Ron Pinhasi from University College Cork (Ireland), and were sponsored by the Gfoeller Foundation (USA) and University College Cork. In 2008 the University of California, Los Angeles (UCLA) also joined the project with Gregory Areshian as co-director of the Areni Project. Since then the excavations have been sponsored by UCLA and the National Geographic Society as well. The excavations of the winery were completed in 2010.
Armenia, officially the Republic of Armenia, is a country in the South Caucasus region of Eurasia. Located in Western Asia on the Armenian Highlands, it is bordered by Turkey to the west, Georgia to the north, the de facto independent Republic of Artsakh and Azerbaijan to the east, and Iran and Azerbaijan's exclave of Nakhchivan to the south.
Shiraz is the fifth-most-populous city of Iran and the capital of Fars Province. At the 2016 census, the population of the city was 1,869,001 and its built-up area with "Shahr-e Jadid-e Sadra" was home to 1,565,572 inhabitants. Shiraz is located in the southwest of Iran on the "Rudkhaneye Khoshk" seasonal river. It has a moderate climate and has been a regional trade center for over a thousand years. Shiraz is one of the oldest cities of ancient Persia.
Ancient Egyptian hieroglyphics record the cultivation of purple grapes, and history attests to the ancient Greeks, Phoenicians, and Romans growing purple grapes for both eating and wine production.The growing of grapes would later spread to other regions in Europe, as well as North Africa, and eventually in North America.
Ancient Egypt was a civilization of ancient North Africa, concentrated along the lower reaches of the Nile River in the place that is now the country Egypt. Ancient Egyptian civilization followed prehistoric Egypt and coalesced around 3100 BC with the political unification of Upper and Lower Egypt under Menes. The history of ancient Egypt occurred as a series of stable kingdoms, separated by periods of relative instability known as Intermediate Periods: the Old Kingdom of the Early Bronze Age, the Middle Kingdom of the Middle Bronze Age and the New Kingdom of the Late Bronze Age.
In North America, native grapes belonging to various species of the genus Vitis proliferate in the wild across the continent, and were a part of the diet of many Native Americans, but were considered by early European colonists to be unsuitable for wine. In the 19th century, Ephraim Bull of Concord, Massachusetts, cultivated seeds from wild Vitis labrusca vines to create the Concord grape which would become an important agricultural crop in the United States.
The indigenous peoples of the Americas are the Pre-Columbian peoples of North, Central and South America and their descendants.
Concord is a town in Middlesex County, Massachusetts, in the United States. At the 2010 census, the town population was 17,668. The United States Census Bureau considers Concord part of Greater Boston. The town center is near where the confluence of the Sudbury and Assabet rivers forms the Concord River.
Vitis labrusca, the fox grape, is a species of grapevines belonging to the Vitis genus in the flowering plant family Vitaceae. The vines are native to eastern North America and are the source of many grape cultivars, including Catawba, Concord, Delaware, Isabella, Niagara, and many hybrid grape varieties such as Agawam, Alexander and Onaka. Among the characteristics of this vine species in contrast to the European wine grape Vitis vinifera are its "slip-skin" that allows the skin of the grape berries to easily slip off when squeezed, instead of crushing the pulp, and the presence of tendrils on every node of the cane. Another contrast with European vinifera is the characteristic "foxy" musk of V. labrusca, best known to most people through the Concord grape. This musk is not related to the mammalian fox, but rather to the strong, earthy aromas characteristic of the grapes that were known by early European-American settlers in the New World. The term "foxy" became a sort of catchall for the wine tasting descriptors used for these American wines that were distinct from the familiar flavors of the European viniferous wines.
Grapes are a type of fruit that grow in clusters of 15 to 300, and can be crimson, black, dark blue, yellow, green, orange, and pink. "White" grapes are actually green in color, and are evolutionarily derived from the purple grape. Mutations in two regulatory genes of white grapes turn off production of anthocyanins, which are responsible for the color of purple grapes.Anthocyanins and other pigment chemicals of the larger family of polyphenols in purple grapes are responsible for the varying shades of purple in red wines. Grapes are typically an ellipsoid shape resembling a prolate spheroid.
Most grapes come from cultivars of Vitis vinifera , the European grapevine native to the Mediterranean and Central Asia. Minor amounts of fruit and wine come from American and Asian species such as:
According to the Food and Agriculture Organization (FAO), 75,866 square kilometers of the world are dedicated to grapes. Approximately 71% of world grape production is used for wine, 27% as fresh fruit, and 2% as dried fruit. A portion of grape production goes to producing grape juice to be reconstituted for fruits canned "with no added sugar" and "100% natural". The area dedicated to vineyards is increasing by about 2% per year.
There are no reliable statistics that break down grape production by variety. It is believed that the most widely planted variety is Sultana, also known as Thompson Seedless, with at least 3,600 km2 (880,000 acres) dedicated to it. The second most common variety is Airén. Other popular varieties include Cabernet Sauvignon, Sauvignon blanc, Cabernet Franc, Merlot, Grenache, Tempranillo, Riesling, and Chardonnay.
Commercially cultivated grapes can usually be classified as either table or wine grapes, based on their intended method of consumption: eaten raw (table grapes) or used to make wine (wine grapes). While almost all of them belong to the same species, Vitis vinifera , table and wine grapes have significant differences, brought about through selective breeding. Table grape cultivars tend to have large, seedless fruit (see below) with relatively thin skin. Wine grapes are smaller, usually seeded, and have relatively thick skins (a desirable characteristic in winemaking, since much of the aroma in wine comes from the skin). Wine grapes also tend to be very sweet: they are harvested at the time when their juice is approximately 24% sugar by weight. By comparison, commercially produced "100% grape juice", made from table grapes, is usually around 15% sugar by weight.
Seedless cultivars now make up the overwhelming majority of table grape plantings. Because grapevines are vegetatively propagated by cuttings, the lack of seeds does not present a problem for reproduction. It is an issue for breeders, who must either use a seeded variety as the female parent or rescue embryos early in development using tissue culture techniques.
There are several sources of the seedlessness trait, and essentially all commercial cultivators get it from one of three sources: Thompson Seedless, Russian Seedless, and Black Monukka, all being cultivars of Vitis vinifera . There are currently more than a dozen varieties of seedless grapes. Several, such as Einset Seedless, Benjamin Gunnels's Prime seedless grapes, Reliance, and Venus, have been specifically cultivated for hardiness and quality in the relatively cold climates of northeastern United States and southern Ontario.
An offset to the improved eating quality of seedlessness is the loss of potential health benefits provided by the enriched phytochemical content of grape seeds (see Health claims, below).
In most of Europe and North America, dried grapes are referred to as "raisins" or the local equivalent. In the UK, three different varieties are recognized, forcing the EU to use the term "dried vine fruit" in official documents.
A raisin is any dried grape. While raisin is a French loanword, the word in French refers to the fresh fruit; grappe (from which the English grape is derived) refers to the bunch (as in une grappe de raisins).
A currant is a dried Zante Black Corinth grape, the name being a corruption of the French raisin de Corinthe (Corinth grape). Currant has also come to refer to the blackcurrant and redcurrant, two berries unrelated to grapes.
A sultana was originally a raisin made from Sultana grapes of Turkish origin (known as Thompson Seedless in the United States), but the word is now applied to raisins made from either white grapes or red grapes that are bleached to resemble the traditional sultana.
Grape juice is obtained from crushing and blending grapes into a liquid. The juice is often sold in stores or fermented and made into wine, brandy, or vinegar. Grape juice that has been pasteurized, removing any naturally occurring yeast, will not ferment if kept sterile, and thus contains no alcohol. In the wine industry, grape juice that contains 7–23% of pulp, skins, stems and seeds is often referred to as "must". In North America, the most common grape juice is purple and made from Concord grapes, while white grape juice is commonly made from Niagara grapes, both of which are varieties of native American grapes, a different species from European wine grapes. In California, Sultana (known there as Thompson Seedless) grapes are sometimes diverted from the raisin or table market to produce white juice.
Comparing diets among Western countries, researchers have discovered that although the French tend to eat higher levels of animal fat, the incidence of heart disease remains low in France. This phenomenon has been termed the French paradox, and is thought to occur from protective benefits of regularly consuming red wine. Apart from potential benefits of alcohol itself, including reduced platelet aggregation and vasodilation,polyphenols (e.g., resveratrol) mainly in the grape skin provide other suspected health benefits, such as:
Although adoption of wine consumption is not recommended by some health authorities,a significant volume of research indicates moderate consumption, such as one glass of red wine a day for women and two for men, may confer health benefits. Emerging evidence is that wine polyphenols such as resveratrol provide physiological benefit, whereas alcohol itself may have protective effects on the cardiovascular system. More may be seen in the article Long-term effects of alcohol.
Resveratrol is found in widely varying amounts among grape varieties, primarily in their skins and seeds, which, in muscadine grapes, have about one hundred times higher concentration than pulp.Fresh grape skin contains about 50 to 100 micrograms of resveratrol per gram.
Anthocyanins tend to be the main polyphenolics in purple grapes whereas flavan-3-ols (i.e. catechins) are the more abundant phenolic in white varieties.Total phenolic content, a laboratory index of antioxidant strength, is higher in purple varieties due almost entirely to anthocyanin density in purple grape skin compared to absence of anthocyanins in white grape skin. It is these anthocyanins that are attracting the efforts of scientists to define their properties for human health. Phenolic content of grape skin varies with cultivar, soil composition, climate, geographic origin, and cultivation practices or exposure to diseases, such as fungal infections.
Red wine may offer health benefits more so than white because potentially beneficial compounds are present in grape skin, and only red wine is fermented with skins. The amount of fermentation time a wine spends in contact with grape skins is an important determinant of its resveratrol content. mg/L, depending on the grape variety, because it is fermented with the skins, allowing the wine to absorb the resveratrol. By contrast, a white wine contains lower phenolic contents because it is fermented after removal of skins.Ordinary non-muscadine red wine contains between 0.2 and 5.8
Wines produced from muscadine grapes may contain more than 40 mg/L, an exceptional phenolic content. In muscadine skins, ellagic acid, myricetin, quercetin, kaempferol, and trans-resveratrol are major phenolics. Contrary to previous results, ellagic acid and not resveratrol is the major phenolic in muscadine grapes.
The flavonols syringetin, syringetin 3-O-galactoside, laricitrin and laricitrin 3-O-galactoside are also found in purple grape but absent in white grape.
Biochemical and preliminary clinical studies have demonstrated potential biological properties of grape seed oligomeric procyanidins.For example, laboratory tests indicated a potential anticancer effect from grape seed extract. According to the American Cancer Society, "there is very little reliable scientific evidence available at this time that drinking red wine, eating grapes, or following the grape diet can prevent or treat cancer in people".
Grape seed oil from crushed seeds is used in cosmeceuticals and skincare products for perceived health benefits. Grape seed oil contains tocopherols (vitamin E) and high contents of phytosterols and polyunsaturated fatty acids such as linoleic acid, oleic acid, and alpha-linolenic acid.
The consumption of grapes and raisins presents a potential health threat to dogs. Their toxicity to dogs can cause the animal to develop acute renal failure (the sudden development of kidney failure) with anuria (a lack of urine production) and may be fatal.
Grape therapy, also known as ampelotherapy (from Ancient Greek ἄμπελος (ampelos), meaning ' vine '), is a form of naturopathic medicine or alternative medicine that involves heavy consumption of grapes, including seeds, and parts of the vine, including leaves. Although there is some limited evidence of positive benefits from the consumption of grapes for health purposes, extreme claims, such as its ability to cure cancer, have been widely derided as "quackery".[ medical citation needed ]
In the Bible, grapes are first mentioned when Noah grows them on his farm.Instructions concerning wine are given in the book of Proverbs and in the book of Isaiah. Deuteronomy tells of the use of wine during Jewish feasts. Grapes were also significant to both the Greeks and Romans, and their god of agriculture, Dionysus, was linked to grapes and wine, being frequently portrayed with grape leaves on his head. Grapes are especially significant for Christians, who since the Early Church have used wine in their celebration of the Eucharist. Views on the significance of the wine vary between denominations. In Christian art, grapes often represent the blood of Christ, such as the grape leaves in Caravaggio's John the Baptist.
Christians have traditionally used wine during worship services as a means of remembering the blood of Jesus Christ which was shed for the remission of sins. Christians who oppose the partaking of alcoholic beverages sometimes use grape juice or water as the "cup" or "wine" in the Lord's Supper.
The Catholic Church continues to use wine in the celebration of the Eucharist because it is part of the tradition passed down through the ages starting with Jesus Christ at the Last Supper, where Catholics believe the consecrated bread and wine literally become the body and blood of Jesus Christ, a dogma known as transubstantiation.Wine is used (not grape juice) both due to its strong Scriptural roots, and also to follow the tradition set by the early Christian Church. The Code of Canon Law of the Catholic Church (1983), Canon 924 says that the wine used must be natural, made from grapes of the vine, and not corrupt. In some circumstances, a priest may obtain special permission to use grape juice for the consecration; however, this is extremely rare and typically requires sufficient impetus to warrant such a dispensation, such as personal health of the priest.
Although alcohol is permitted in Judaism, grape juice is sometimes used as an alternative for kiddush on Shabbat and Jewish holidays, and has the same blessing as wine. Many authorities maintain that grape juice must be capable of turning into wine naturally in order to be used for kiddush. Common practice, however, is to use any kosher grape juice for kiddush.
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A raisin is a dried grape. Raisins are produced in many regions of the world and may be eaten raw or used in cooking, baking, and brewing. In the United Kingdom, Ireland, New Zealand, and Australia, the word "raisin" is reserved for the dark-colored dried large grape, with "sultana" being a golden-colored dried grape, and "currant" being a dried small Black Corinth seedless grape.
The Concord grape is a cultivar derived from the grape species Vitis labrusca that are used as table grapes, wine grapes and juice grapes. They are often used to make grape jelly, grape juice, grape pies, grape-flavored soft drinks, and candy. The grape is sometimes used to make wine, particularly kosher wine. Traditionally, most commercially produced Concord wines have been finished sweet, but dry versions are possible if adequate fruit ripeness is achieved. It is named after the town in Massachusetts where it was developed.
Grape seed oil is pressed from the seeds of grapes, and is thus an abundant by-product of winemaking.
Vitis vinifera, the common grape vine, is a species of Vitis, native to the Mediterranean region, central Europe, and southwestern Asia, from Morocco and Portugal north to southern Germany and east to northern Iran. There are currently between 5,000 and 10,000 varieties of Vitis vinifera grapes though only a few are of commercial significance for wine and table grape production.
Vitis rotundifolia, or muscadine, is a grapevine species native to the southeastern and south-central United States from Florida to Delaware, west to eastern Texas and Oklahoma. It has been extensively cultivated since the 16th century. The plants are well adapted to their native warm and humid climate; they need fewer chilling hours than better known varieties and they thrive on summer heat.
Aronia is a genus of deciduous shrubs, the chokeberries, in the family Rosaceae native to eastern North America and most commonly found in wet woods and swamps. The genus is usually considered to contain two or three species, one of which is naturalized in Europe. A fourth form that has long been cultivated under the name Aronia is now considered to be an intergeneric hybrid, Sorbaronia mitschurinii.
The sultana is a "white", oval seedless grape variety also called the sultanina, Thompson Seedless, Lady de Coverly (England), and oval-fruited Kishmish. It is also known as İzmir üzümü in Turkey since this variety has been extensively grown region around İzmir. It is assumed to originate from the Levant, which later became part of the Ottoman Empire. In some countries, especially Commonwealth countries, it is also the name given to the raisin made from it or from larger seedless grapes; such sultana raisins are often called simply sultanas or sultanis. These are typically larger than Zante currants, and the Thompson variety is smaller than many seeded raisins. In the US and Canada, the name "raisin" is applied to all dried grapes, so that the breakfast cereal known as "sultana bran" in Australia, New Zealand and the United Kingdom is called raisin bran in the United States and Canada.
Norton, a grape cultivar believed to be largely derived from Vitis aestivalis, is grown in the Midwestern United States, Mid-Atlantic States, northeastern Georgia and, most recently, in California. Norton was first cultivated in Richmond, Virginia and is the official grape of the State of Missouri and is considered the cornerstone of the Missouri wine industry. Strong evidence indicates that Dr. Daniel Norton first purveyed the Norton cultivar during the early 19th century from his vineyards in Virginia, USA. Further evidence has been reported that Dr. Norton developed the cultivar from seeds from a now extinct variety with unconfirmed parentage, Bland, pollinated by a Vitis Aestivalis grapevine. In 2009 Riedel designed stemware specifically for wine made from the Norton grape. The glass was unveiled at Les Bourgeois Winery near Columbia, Missouri.
The açaí palm, Euterpe oleracea, is a species of palm tree (Arecaceae) cultivated for its fruit, hearts of palm, leaves, and trunk wood. Global demand for the fruit expanded rapidly in the 21st century and so the tree is cultivated for that purpose primarily.
Grape juice is obtained from crushing and blending grapes into a liquid. In the wine industry, grape juice that contains 7–23 percent of pulp, skins, stems and seeds is often referred to as "must". The sugars in grape juice allow it to be used as a sweetener, and fermented and made into wine, brandy, or vinegar.
The health effects of wine are mainly determined by its active ingredient alcohol. Some studies found that, when comparing people that consume alcohol, drinking small quantities of alcohol is associated with a decreased risk of heart disease, stroke, diabetes mellitus, metabolic syndrome and early death. However, other studies found no such effect.
The following outline is provided as an overview of and topical guide to wine:
Anthocyanins are water-soluble vacuolar pigments that, depending on their pH, may appear red, purple, blue or black. Food plants rich in anthocyanins include the blueberry, raspberry, black rice, and black soybean, among many others that are red, blue, purple, or black. Some of the colors of autumn leaves are derived from anthocyanins.
The phenolic content in wine refers to the phenolic compounds—natural phenol and polyphenols—in wine, which include a large group of several hundred chemical compounds that affect the taste, color and mouthfeel of wine. These compounds include phenolic acids, stilbenoids, flavonols, dihydroflavonols, anthocyanins, flavanol monomers (catechins) and flavanol polymers (proanthocyanidins). This large group of natural phenols can be broadly separated into two categories, flavonoids and non-flavonoids. Flavonoids include the anthocyanins and tannins which contribute to the color and mouthfeel of the wine. The non-flavonoids include the stilbenoids such as resveratrol and phenolic acids such as benzoic, caffeic and cinnamic acids.
The color of wine is one of the most easily recognizable characteristics of wines. Color is also an element in wine tasting since heavy wines generally have a deeper color. The accessory traditionally used to judge the wine color was the tastevin, a shallow cup allowing one to see the color of the liquid in the dim light of a cellar. The color is an element in the classification of wines.
Caftaric acid is a non-flavanoid phenolic compound.
ε-Viniferin is a naturally occurring phenol, belonging to the stilbenoids family. It is a resveratrol dimer.
Laricitrin is an O-methylated flavonol, a type of flavonoid. It is found in red grape and in Vaccinium uliginosum. It is one of the phenolic compounds present in wine.
δ-Viniferin is a resveratrol dehydrodimer. It is an isomer of epsilon-viniferin. It can be isolated from stressed grapevine leaves. It is also found in plant cell cultures. or in wine. It can also be found in Rheum maximowiczii.
Callistephin is an anthocyanin. It is the 3-O-glucoside of pelargonidin.