Black Walnut:Juglans nigra and Walnut Extracts Benefits.

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Some of the common walnut species.

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 The American black walnut (Juglans nigra) originally belonged to the eastern half of the US and Canada and has been prized for more than 200 years for its beautiful wood. The nut has a thick blackish-brown shell and a strong, but pleasant, flavour. This also applies to the butternut or American white walnut (J. cinerea) which also grows in the eastern half of the country. Among the South American species are the Bolivian black walnut (J. boliviana), which bears good quality nuts, as does the Ecuador walnut or "nogal" (J. honorei).

 Chinese walnut, mountain walnut, Cathay walnut (Carya cathayensis) is a tall deciduous tree that grows in China. The fruit is globular to oblong with a four-angled outer layer. Another walnut tree native to China is the Manchurian walnut of the north (J. mandshurica).

 Butternut, American white walnut (J. cinerea) is very rare, but its nuts are one of the best for flavour, although it is more oily. The tree looks like a black walnut, except that the trunk has a whitish cast in its higher regions. Another important difference is that the butternut hulls do not stain the fingers like the black walnut. The Narragansett Indians called it "wussoquat." The oil from the seeds was used for their seasoning. The nut paste was used to thicken their pottage, and the immature fruit, pickled.

 The California walnut (J. californica) is native to that state.

 Heartnut (J. sieboldiana or ailanthifolia) is a small nut with a good flavour. This species is now cultivated in the US under the name of "heartnut" because of the shape of the hulls and the kernels. The 60-foot tree, which bears its fruit in the fall, is endemic to Java, where it grows along streams an on wettish plains. The Javanese use the hulls in treating fish poisonings.

 Yellow walnut, wanga (Beilschmiedia bancroftii -- Family Lauraceae) is not a true walnut, but consists of some 200 kinds that grow in tropical Australia and New Zealand. This species produces a large seed and, after treatment, provides the most flavoured source of flour among the aborginals of the rain forest. Another species, commonly called Tola or Spicy Cedar, produces seeds that are sometimes confused with the Bitter Kola, but are readily distinguishable as they separate into two cotyledons. They are somewhat oily but used in food or ground and roasted and used to enrich native dishes.

 Queensland Walnut (Endiandra palmerstonii -- Family Lauraceae) is not a true walnut but is a member of a genus that has about eighty species found in Malaysia, Australia, and Polynesia. The kernels are ground and used as flour.

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last edit date:10th,June.2009.