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:''This article is about the plant genus and its human use. For the spider genus see [[Perilla (spider)]].
{{Taxobox
| color = lightgreen
| name = Perilla
| image = green shiso perilla.jpg
| image_width = 200px
| image_caption = Green Shiso
| regnum = [[Plant]]ae
| divisio = [[Flowering plant|Magnoliophyta]]
| classis = [[Magnoliopsida]]
| ordo = [[Lamiales]]
| familia = [[Lamiaceae]]
| genus = ''Perilla''
| genus_authority = [[Carolus Linnaeus|L.]]
}}
'''''Perilla''''' is a genus of [[Annual_plant|annual]] [[herb]] that is a member of the mint family, [[Lamiaceae]]. In mild climates the plant reseeds itself. The most common species is ''Perilla frutescens var. japonica'' or '''shiso''' which is mainly grown in India and [[East Asia]]. There are both green-leafed and purple-leafed varieties which are generally recognized as separate species by botanists. The leaves resemble [[stinging nettle]] leaves, being slightly rounder in shape. It is also widely known as the '''Beefsteak plant'''. In [[North America]], it is increasingly commonly called by its Japanese name, ''shiso'', in addition to being generally referred to as ''perilla''. Its essential oils provide for a strong taste whose intensity might be compared to that of mint or [[fennel]]. It is considered rich in [[minerals]] and [[vitamins]], has anti-inflammatory properties and is thought to help preserve and sterilize other foods. In [[Nepal]] and parts of [[India]], it is called ''silam''. Its seeds are ground with chili and tomatoes to make a savoury dip/side dish.
In [[North America]] one of the purple varieties is sometimes known as '''Purple mint''', '''Chinese basil''', or '''Wild coleus''' (although it is not a [[mint]], [[basil]] or [[coleus]]).
==China==
Perilla ({{zh-tsp|t=紫蘇|s=紫苏|p=zǐ sū}}) is traditionally used in [[Chinese medicine]] and has been shown to stimulate [[interferon]] activity and thus, the body's [[immune system]].
==Korea==
[[Image:Kkk.jpg|right|thumb|Korean perilla leaves prepared for kimchi]]
The plant's Korean name is ''deulkkae'' or ''tŭlkkae'' ([[Hangul|{{lang|ko-Hang|들깨}}]]). The same word is also used when referring to its seed, which has many uses in Korean cuisine, just as the leaves (''kkaennip'', [[Hangul|{{lang|ko-Hang|깻잎}}]]) do. The literal translations of ''deulkkae'' ("wild sesame") and ''kkaennip'' ("sesame leaf") are in spite of perilla's not being closely related to [[sesame]], and Korean cookbooks translated to English sometimes use these translations. Cans of pickled ''kkaennip'' can be found in Korean shops all over the world, with some ground red pepper between every two leaves in the can. The leaves' essential oils provide for their strong taste. Fresh leaves have an aroma reminiscent of apples and mint and are eaten in salad dishes. The flavor is distinct from Japanese perilla, and the leaf appearance is different as well – larger, rounder, flatter, with a less serrate edge and often, a violet coloring on the reverse side. Perilla oil (''deulgireum'', [[Hangul|{{lang|ko-Hang|들기름}}]]) is extracted from the seeds; the cake can be used as animal food. Perilla oil has a rich taste and scent slightly resembling dark [[sesame oil]] (''chamgireum'', [[Hangul|{{lang|ko-Hang|참기름}}]]). Perilla seed can be cooked with meals, roasted, crushed to intensify its taste and/or mixed with sesame and salt. It is also an important ingredient for ''[[bosintang]]''.
==Japan==
The [[Japanese language|Japanese]] name for perilla is {{nihongo|''shiso''|紫蘇}}. The Japanese call the green type {{nihongo|''aojiso''|青紫蘇}}, ''aoba'' ("green leaf"), ''ōba'' ([[Corruption (grammar)|corruption]] of ''aoba'', often written as {{lang|ja-Hani|大葉}}, "big leaf") or ''aoshiso'' and often eat it with [[sashimi]] (sliced raw fish) or cut into thin strips in salads, spaghetti, and meat and fish dishes. It is also used as a flavorful herb in a variety of dishes, even as a [[pizza]] topping (initially it was used in place of [[basil]]). The purple type is called {{nihongo|''akajiso''|赤紫蘇 "red shiso"}} and is used to make [[umeboshi]] (pickled [[ume]]), or combined with [[ume]] paste in [[sushi]] to make ''umeshiso [[maki]]''. An inflorescence of shiso is called ''hojiso''. Its young leaves and flower buds are used for pickling in Japan and Taiwan.
[[Image:Shiso detail.jpg|left|thumb|Shiso plant with forming leaves, stem and leaf detail]]
==Vietnam==
[[Cuisine of Vietnam|Vietnamese cuisine]] uses a variety similar to the Japanese ''hojiso'' but with greenish bronze on the top face and purple on the opposite face. The leaves are smaller and have a much stronger fragrance than ''hojiso''. In Vietnamese, it is called ''{{lang|vi|tía tô}}'', derived from the characters ({{lang|vi-Hant|紫蘇}}) whose standard pronunciation in Vietnamese is ''{{lang|vi|tử tô}}''. It is usually eaten as a garnish in rice vermicelli dishes called ''{{lang|vi|[[bún]]}}'' and a number of stews and simmered dishes.
==Indonesia==
In Indonesia, Perilla is known as "Kemangi." The variety is similar to the one used in Thailand. The seeds collected from the flowers are known as "Selasih" and are often added to drinks.
==Chemistry==
The essential oil extracted from the leaves of perilla by steam distillation consists of a variety of chemical compounds, which may vary depending on species. The most abundant, comprising about 50–60% of the oil, is [[perillaldehyde]] which is most responsible for the aroma and taste of perilla. Other [[terpene]]s such as [[limonene]], [[caryophyllene]], and [[farnesene]] are common as well.
Of the known [[chemotype]]s of perilla, PA (main component: perillaldehyd) is the only one used for culinary purposes. Other chemotypes are PK ([[perilla ketone]]), EK ([[elsholzia ketone]]), PL ([[perillene]]), PP ([[phenylpropanoids]]: [[myristicin]], [[dillapiole]], [[elemicin]]), C ([[citral]]) and a type rich in [[rosefuran]].
Perilla ketone is toxic to some animals. When cattle and horses consume purple mint (of the PK chemotype) while grazing in fields in which it grows, the perilla ketone causes [[pulmonary edema]] leading to a condition sometimes called perilla mint toxicosis.
[[Perilla oil]] is obtained by pressing the seeds of perilla, which contain 35 to 45 percent oil. In parts of Asia, perilla oil is used as an edible oil that is valued more for its medicinal benefit than its flavor. Perilla oil is a very rich source of the [[omega-3 fatty acid]] [[alpha-linolenic acid]]. As a [[drying oil]] similar to [[tung oil]] or [[linseed oil]], perilla oil has been used for [[paints]], [[varnishes]], [[linoleum]], [[ink|printing ink]], [[lacquer]]s, and for protective [[Durable Water Repellent|waterproof coatings]] on cloth. Perilla oil can also be used for fuel.
The [[oxime]] of perillaldehyde ([[perillartin]]) is used as an [[artificial sweetener]] in Japan as it is about 2000 times sweeter than [[sucrose]].
==References==
* {{cite book
| chapter=Perilla: The Genus Perilla
| title=Medicinal & Aromatic Plants, Industrial Profiles
| author=He-ci Yu
| id=ISBN 90-5702-171-4
}}
* {{cite book
| title=Invasive Plants of Asian Origin Established in the US and Their Natural Enemies
| chapter=Perilla frutescens (Perilla)
| url=http://www.invasive.org/weeds/asian/bischofia.pdf
| pages=129-130
| accessdate=2006-11-17
| author=Hao Zheng, Yun Wu, Jianqing Ding, Denise Binion, Weidong Fu and Richard Reardon
| publisher=USDA Forest Service
| date=September [[2004]]
}}
* {{cite web
| url=http://www.hort.purdue.edu/newcrop/cropfactsheets/perilla.html
| work=Purdue University NewCrop Fact Sheet
| title=Perilla
| author=David Brenner
| date=[[1995]]
| accessdate=2006-11-17
}}
* {{cite web
| url=http://www.uni-graz.at/~katzer/engl/Peri_fru.html
| author=Gernot Katzer
| title=Perilla (Perilla frutescens) L. Britton
| work=Spice Pages
| date=[[September 19]] [[2006]]
| accessdate=2006-11-17
}}
* {{cite web
| url=http://evergreenseeds.stores.yahoo.net/perjapshis.html
| publisher=Evergreen Seeds
| accessdate=2006-11-17
| title=Perilla (Japanese, Vietnamese and Korean Shi-So, Zi Su, Beefsteak)
}} Commercial seed house with pictures of different perilla varieties
[[Category:Herbs]]
[[Category:Japanese ingredients]]
[[Category:Korean cuisine]]
[[Category:Lamiaceae]]
[[Category:Medicinal plants]]
{{Herbs & spices}}