Black Walnut:Juglans nigra and Walnut Extracts Benefits.

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Countries of origin:Walnut.

Walnut Extract INCI Name Juglans Nigra Extract CAS:96690-56-1 EINECS ELINCS No 306-252-0 Green Black Walnut Extract Persian Walnut Extract Semen Juglandis Carya Alba Extract mockernut hickory Walnut kernel Semen Juglandis Hu Tao Ren photo picture image Africa
 Asia:China, India
 America:Chile, USA (California)
 Australia
 Europe:Italy, France, former Yugoslavia, Turkey, Romania, Bulgaria

 This food-herb is the dried ripe seed of Juglans regia L., any of about 20 species of deciduous trees of the family Juglandaceae. Native to Persia, the growth of walnut prefers a northerly aspect in the west but a southerly or westerly aspect in the east of the habitat range. Used since ancient times, the versatile walnut is grown throughout the world. Its name is derived from the Old English word wealh, meaning "strange" or "foreign."

 The trees have long leaves with 5 to 23 short-stalked leaflets; male and female reproductive organs are borne in different, petalless flower clusters on the same tree. The twigs contain a many-chambered pith; and the fruit is a woody nut enclosed in a thick husk.

 There are about 15 edible varieties of walnuts, foremost among them is the Persian or English variety. This flavorful and popular variety originated in the Middle East and does not grow in England. They were called "English" because it was the English merchants who transported the nuts to the colonies. Today, this variety is produced mostly in California. English walnuts have a thin shell that is easily cracked, and the curly nutmeat halves have a sweet flavor with a touch of the bitterness and astringency of the golden to dark-brown edible skin.

 Other varieties include the black or American walnut, Chinese walnut, and the butternut or white walnut. Black walnuts were a Native American staple, with a sweet flavor and a hard, sticky shell that protects dark-skinned white nutmeats.

 A black walnut tree usually is between 20 and 30 m tall and has a trunk about 60 to 90 cm in diameter, with a deeply furrowed, dark brown or grayish black bark. The leaves, about 30 to 60 cm long, consist of 15 to 23 leaflets borne on very short stalks.

 The nut contains a sweet, oily seed and is enclosed in a yellow-green, hairy husk. Black walnut trees are also planted for ornament and are cultivated for the wood and for a dye found in the fruit husks. Black walnut grows slowly, maturing on good soils in about 150 years; it may have a life span of more than 250 years.

 The English walnut, cultivated for many years in England, is now grown in parts of North and South America, both as an ornamental and for commercial nut production. A tree produces fine-quality nuts only on fertile, well-drained soils of medium-heavy texture.

 The dark, fine-grained wood of English and black walnuts is used for furniture, panelling, and gunstocks.

 Walnuts are available year-round. Over 98% of the total U.S. commercial crop and two-thirds of world's commercial walnuts are produced in California. Walnuts are harvested in California beginning in August.

 Walnut is grown in every part of China. The fruit is collected in September and October when it is fully ripe, and dried in the sun after getting rid of the seed skin. The kernel is taken out, used unprepared or stir-baked.

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citations1.Black Walnut:Juglans nigra and Walnut Extracts Benefits.

last edit date:10th,June.2009.