![Raisins 2](https://upload.wikimedia.org/wikipedia/commons/2/2b/Raisins_2.jpg)
A raisin is a dried
grape
A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus ''Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters.
The cultivation of grapes began perhaps 8,000 years ago, ...
. Raisins are produced in many regions of the world and may be eaten raw or used in
cooking
Cooking, cookery, or culinary arts is the art, science and craft of using heat to Outline of food preparation, prepare food for consumption. Cooking techniques and ingredients vary widely, from grilling food over an open fire to using electric ...
,
baking
Baking is a method of preparing food that uses dry heat, typically in an oven, but can also be done in hot ashes, or on hot stones. The most common baked item is bread but many other types of foods can be baked. Heat is gradually transferred " ...
, and
brewing
Brewing is the production of beer by steeping a starch source (commonly cereal grains, the most popular of which is barley) in water and #Fermenting, fermenting the resulting sweet liquid with Yeast#Beer, yeast. It may be done in a brewery ...
. In the
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
,
Ireland
Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...
,
New Zealand
New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...
,
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
and
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...
, 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
Zante currants, Corinth raisins, Corinthian raisins or outside the United States simply currants, are raisins of the small, sweet, seedless grape cultivar Black Corinth (''Vitis vinifera''). The name comes from the Anglo-Norman language, Anglo- ...
seedless grape.
[
]
Etymology
The word "raisin" dates back to Middle English
Middle English (abbreviated to ME) is a form of the English language that was spoken after the Norman conquest of 1066, until the late 15th century. The English language underwent distinct variations and developments following the Old English p ...
and is a loanword
A loanword (also loan word or loan-word) is a word at least partly assimilated from one language (the donor language) into another language. This is in contrast to cognates, which are words in two or more languages that are similar because th ...
from Old French
Old French (, , ; Modern French: ) was the language spoken in most of the northern half of France from approximately the 8th to the 14th centuries. Rather than a unified language, Old French was a linkage of Romance dialects, mutually intelligib ...
; in modern French
French (french: français(e), link=no) may refer to:
* Something of, from, or related to France
** French language, which originated in France, and its various dialects and accents
** French people, a nation and ethnic group identified with Franc ...
, ''raisin'' means "grape", while a dried grape is a ''raisin sec'', or "dry grape". The Old French word, in turn, developed from the Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
word '' racemus'', "a bunch of grapes."
Varieties
Raisin varieties depend on the type of grape and appear in a variety of sizes and colors including green, black, brown, purple, blue, and yellow. Seedless varieties include the sultana (the common American type is known as Thompson Seedless
The sultana is a "white" (pale green), oval seedless grape variety also called the sultanina, Thompson Seedless (United States), Lady de Coverly (England), and oval-fruited Kishmish (Iraq, Iran, Israel, Palestine, Pakistan, Afghanistan, India). ...
in the United States), the Zante currants (black Corinthian raisins, ''Vitis vinifera'' L. var. Apyrena)[ and Flame grapes. Raisins are traditionally ]sun-dried
Food drying is a method of food preservation in which food is dried (dehydrated or desiccated). Drying inhibits the growth of bacteria, yeasts, and mold through the removal of water. Dehydration has been used widely for this purpose since a ...
, but may also be artificially dehydrated.
"Golden raisins" are generally dried in dehydrators with controlled temperature and humidity, which allows them to retain a lighter color and more moisture. They are often treated with sulfur dioxide
Sulfur dioxide (IUPAC-recommended spelling) or sulphur dioxide (traditional Commonwealth English) is the chemical compound with the formula . It is a toxic gas responsible for the odor of burnt matches. It is released naturally by volcanic activ ...
after drying.
Black Corinth
Zante currants, Corinth raisins, Corinthian raisins or outside the United States simply currants, are raisins of the small, sweet, seedless grape cultivar Black Corinth (''Vitis vinifera''). The name comes from the Anglo-Norman language, Anglo- ...
or Zante currants
Zante currants, Corinth raisins, Corinthian raisins or outside the United States simply currants, are raisins of the small, sweet, seedless grape cultivar Black Corinth (''Vitis vinifera''). The name comes from the Anglo-French phrase "raisins ...
are small, sometimes seedless raisins that are much darker and have a tart, tangy flavor. They are usually called currants.[ ]Muscat
Muscat ( ar, مَسْقَط, ) is the capital and most populated city in Oman
Oman ( ; ar, عُمَان ' ), officially the Sultanate of Oman ( ar, سلْطنةُ عُمان ), is an Arabian country located in southwestern Asia. It is s ...
raisins are large compared to other varieties, and also sweeter.
Grapes used to produce raisins in the Middle East and Asia include the large black monukka (or manucca) grapes that produce large raisins.
Processing
Raisins are produced commercially by drying harvested grape berries
A berry is a small, pulpy, and often edible fruit. Typically, berries are juicy, rounded, brightly colored, sweet, sour or tart, and do not have a stone or pit, although many pips or seeds may be present. Common examples are strawberries, raspb ...
. For a grape berry to dry, water inside the grape must be removed completely from the interior of the cells onto the surface of the grape where the water droplets can evaporate. However, this diffusion process is very difficult because the grape skin contains wax in its cuticle, which prevents the water from passing through. In addition to this, the physical and chemical mechanisms located on the outer layers of the grape are adapted to prevent water loss.[Christensen, L.P., and Peacock, W.L. (20 April 2013]
"The Raisin Drying Process"
. ''Raisin Production Manual'', University of California
The University of California (UC) is a public land-grant research university system in the U.S. state of California. The system is composed of the campuses at Berkeley, Davis, Irvine, Los Angeles, Merced, Riverside, San Diego, San Francisco, ...
at Davis
Davis may refer to:
Places Antarctica
* Mount Davis (Antarctica)
* Davis Island (Palmer Archipelago)
* Davis Valley, Queen Elizabeth Land
Canada
* Davis, Saskatchewan, an unincorporated community
* Davis Strait, between Nunavut and Gre ...
. The three steps to commercial raisin production include pre-treatment, drying, and post-drying processes.
Pre-treatment
Pre-treatment is a necessary step in raisin production to ensure the increased rate of water removal during the drying process. A faster water removal rate decreases the rate of browning and helps to produce more desirable raisins. The historical method of completing this process was developed in the Mediterranean and Asia Minor areas by using a dry emulsion cold dip made of potassium carbonate
Potassium carbonate is the inorganic compound with the formula K2 CO3. It is a white salt, which is soluble in water. It is deliquescent, often appearing as a damp or wet solid. Potassium carbonate is mainly used in the production of soap and gl ...
and ethyl esters of fatty acids. This dip was shown to increase the rate of water loss by two- to three-fold.
Recently, new methods have been developed such as exposing the grapes to oil emulsions or dilute alkaline solutions. These methods can encourage water transfer to the outer surface of grapes which helps to increase the efficiency of the drying process.
Drying
The three types of drying methods are: sun drying, shade drying, and mechanical drying. Sun drying is an inexpensive process; however, environmental contamination, insect infections, and microbial deterioration can occur and the resulting raisins are often of low quality. Additionally, sun drying is a slow process and may not produce the most desirable raisins.
Mechanical drying can be done in a safer and more controlled environment where rapid drying is guaranteed. One type of mechanical drying is to use microwave
Microwave is a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter corresponding to frequencies between 300 MHz and 300 GHz respectively. Different sources define different frequency ran ...
drying. Water molecules in the grapes absorb microwave energy resulting in rapid evaporation. Microwave drying produces puffed raisins.
Post-drying processes
After the drying process is complete, raisins are sent to processing plants where they are cleaned with water to remove any foreign objects that may have become embedded during the drying process. Stems and off-grade raisins are also removed. The washing process may cause rehydration, so another drying step is completed after washing to ensure that the added moisture has been removed.
All steps in the production of raisins are very important in determining the quality of raisins. Sometimes, sulfur dioxide is applied to raisins after the pre-treatment step and before drying to decrease the rate of browning caused by the reaction between polyphenol oxidase and phenolic compounds. Sulfur dioxide also helps to preserve flavor and prevent the loss of certain vitamins during the drying process.
Production
Global production of raisins in 2020–21 was 1.2 million tonne
The tonne ( or ; symbol: t) is a unit of mass equal to 1000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton to distinguish it from the non-metric units of the short ton ( United State ...
s, led by Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
, the United States, Iran
Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
, and India as the largest producers.
Nutrition
Raisins are 15% water, 79% carbohydrate
In organic chemistry, a carbohydrate () is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water) and thus with the empirical formula (where ''m'' may or ma ...
s (including 4% fiber
Fiber or fibre (from la, fibra, links=no) is a natural or artificial substance that is significantly longer than it is wide. Fibers are often used in the manufacture of other materials. The strongest engineering materials often incorporate ...
), 3% protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, respo ...
, and contain negligible fat
In nutrition science, nutrition, biology, and chemistry, fat usually means any ester of fatty acids, or a mixture of such chemical compound, compounds, most commonly those that occur in living beings or in food.
The term often refers spec ...
. In a reference amount of , raisins supply 299 kilocalorie
The calorie is a unit of energy. For historical reasons, two main definitions of "calorie" are in wide use. The large calorie, food calorie, or kilogram calorie was originally defined as the amount of heat needed to raise the temperature of on ...
s and moderate amounts (10–19% DV) of the Daily Value
The Reference Daily Intake (RDI) used in nutrition labeling on food and dietary supplement products in the U.S. and Canada is the daily intake level of a nutrient that is considered to be sufficient to meet the requirements of 97–98% of health ...
for several dietary mineral
In the context of nutrition, a mineral is a chemical element required as an essential nutrient by organisms to perform functions necessary for life. However, the four major structural elements in the human body by weight (oxygen, hydrogen, carbon ...
s, riboflavin
Riboflavin, also known as vitamin B2, is a vitamin found in food and sold as a dietary supplement. It is essential to the formation of two major coenzymes, flavin mononucleotide and flavin adenine dinucleotide. These coenzymes are involved in ...
, and vitamin B6
Vitamin B6 is one of the B vitamins, and thus an essential nutrient. The term refers to a group of six chemically similar compounds, i.e., "vitamers", which can be interconverted in biological systems. Its active form, pyridoxal 5′-phosphat ...
.
Toxicity in animals
Raisins can cause kidney failure
Kidney failure, also known as end-stage kidney disease, is a medical condition in which the kidneys can no longer adequately filter waste products from the blood, functioning at less than 15% of normal levels. Kidney failure is classified as eit ...
in both cats and dogs. The cause of this is not known.
Gallery
File:Sunmaid-Raisin-Pile.jpg, Common commercial raisins
File:Chunche.jpg, Chunche
Chunche ( Uyghur:چۈنچە, Чунчә; Chinese: 晾房, 阴房) is a Uyghur word that refers to a kind of building used to make raisins in Turpan, Xinjiang Uyghur Autonomous Region, China. The building has a dark interior, and the walls are c ...
, ventilated sheds for drying grapes into raisins in Xinjiang
Xinjiang, SASM/GNC: ''Xinjang''; zh, c=, p=Xīnjiāng; formerly romanized as Sinkiang (, ), officially the Xinjiang Uygur Autonomous Region (XUAR), is an autonomous region of the People's Republic of China (PRC), located in the northwest ...
File:Taliparamba grocery.jpg, Raisins offered for sale at a market in Taliparamba
Taliparamba (also known as Perinchelloor and Lakshmipuram) is a Municipalities of Kerala, Municipality in Taliparamba taluk of Kannur district, Kerala, India. The municipal town spreads over an area of and is inhabited by 44,247 number ...
, India
See also
* Dried fruit
Dried fruit is fruit from which the majority of the original water content has been removed either naturally, through sun drying, or through the use of specialized dryers or dehydrators. Dried fruit has a long tradition of use dating back to th ...
* Raisin cake
Raisin cake is a type of cake that is prepared using raisins as a main ingredient. Additional ingredients are sometimes used, such as chocolate and rum. Raisin cake dates back to at least the time of the reign of David, circa 1010–970 BCE. Boile ...
* Snap-dragon, a Victorian
Victorian or Victorians may refer to:
19th century
* Victorian era, British history during Queen Victoria's 19th-century reign
** Victorian architecture
** Victorian house
** Victorian decorative arts
** Victorian fashion
** Victorian literature ...
parlour game
A parlour or parlor game is a group game played indoors using speech (from French Parler). They were often played in a parlour. These games were extremely popular among the upper and middle classes in the United Kingdom and in the United States d ...
that involved raisins being plucked from a bowl of burning brandy
Brandy is a liquor produced by distilling wine. Brandy generally contains 35–60% alcohol by volume (70–120 US proof) and is typically consumed as an after-dinner digestif. Some brandies are aged in wooden casks. Others are coloured with ...
.
* Sun-Maid
Sun-Maid Growers of California is an American privately owned cooperative of raisin growers headquartered in Fresno, California. Sun-Maid is one of the largest raisin and dried fruit processors in the world. As a cooperative, Sun-Maid is made up ...
, a popular brand of raisins available in North America and the United Kingdom.
* The California Raisins
The California Raisins were a fictional rhythm and blues animated musical group as well as advertising and merchandising characters composed of anthropomorphized raisins. Lead vocals were sung by musician Buddy Miles. The California Raisins w ...
, a fictional music group of anthropomorphized raisins created by CalRAB
The California Raisin Advisory Board (or CALRAB) was a California state marketing commission based in Fresno, California that was created in the mid-1900s to coordinate the regulation and promotion of the state's raisin crop. The group became most ...
to promote the food on TV
* The chocolate-covered raisin
Chocolate-covered raisins are a candy consisting of individual raisins coated in a shell of milk, dark or white chocolate.
Varieties and brands
In some countries, they are also known as Raisinets, which is the earliest and one of the most p ...
, a candy made by coating the dried fruit in chocolate
Chocolate is a food made from roasted and ground cacao seed kernels that is available as a liquid, solid, or paste, either on its own or as a flavoring agent in other foods. Cacao has been consumed in some form since at least the Olmec civ ...
.
* Oatmeal raisin cookie
An oatmeal raisin cookie is a type of drop cookie made from an oatmeal-based dough with raisins. Its ingredients also typically include flour, sugar, eggs, salt, and spices. A descendant of the Scottish oatcake, the oatmeal raisin cookie has bec ...
References
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Berries