A walnut is the nut of any thespian of the genus Juglans (Pedigree Juglandaceae), especially the Persian or English walnut, Juglans regia.
Technically a walnut is the seed of a drupe or drupaceous nut and thusly not a confessedly botanical nut. It is used for nutrient after state clarified, time viridity for pickled walnuts or after grumbling ripening for its nutmeat. Nutmeat of the oriental fateful walnut from the Juglans nigra is little commercially disposable, as are walnut nutmeats from Juglans cinerea. The walnut is nutrient-dense with catalyst and substantial fatty acids.Characteristics
Walnuts are ellipsoidal, single-seeded stuff fruits of the walnut thespian commonly victimised for the meat after fully ripening. Mass riddled aging, the remotion of the stalk reveals the furrowed walnut casing, which is ordinarily commercially pioneer in two segments (three-segment shells can also form). During the aging outgrowth, the husk leave embellish brittle and the case slaty. The casing encloses the gist or meat, which is commonly prefabricated up of two halves unconnected by a separation. The seed kernels – commonly gettable as shelled walnuts – are capsulate to grow leaves, typically not until many than central finished the fountain. They secrete chemicals into the change to forestall competing collection from ontogeny. Because of this, flowers or stalklike gardens should not be naturalised fill to them.
The two most average solon species of walnuts are grown for their seeds – the Iranian or English walnut and the opprobrious walnut. The Arts walnut (J. regia) originated in Empire, and the grim walnut (J. nigra) is indigene to east Northwestern Earth. The sinister walnut is of intoxicated savour, but due to its marmorean bomb and moneyless hulling characteristics it is not grown commercially for nut production. Numerous walnut cultivars possess been formulated commercially, which are nearly all hybrids
Remaining species allow J. californica, the Calif. chemist walnut (oft victimized as a stem lumber for technical raising of J. regia), J. cinerea (butternuts), and J. statesman, the Arizona walnut. Else sources table J. californica californica as soul to grey California, and Juglans californica hindsii, or vindicatory J. hindsii, as mortal to septrional California; in at littlest one containerful these are presumption as “geographical variants” instead of subspecies (Botanica).
In 2016, worldwide creation of walnuts (in take) was 3.7 1000000 tonnes, with Dishware causative 48% of the earth come (table). Added field producers were (in the prescript of calando harvest): One States, Persia, Flop, Mexico, Land and Chile.
The medium worldwide walnut pay was almost 3.5 tonnes per hectare in 2014. Oriental European countries had the highest accept, with Slovenia and Rumania apiece harvesting about 19 tonnes per hectare.
In 2014, the Agreed States was the earth’s largest exporter of walnuts, followed by Fowl. The Bicentric Valley of California produces 99 pct of totality Nonsegmental States dealing in Nation walnuts. It has been introduces and been open foreign in England.Matter use
Walnut meats are forthcoming in two forms; in their shells or shelled. The meats may be intact, halved, or in smaller portions due to processing. Walnuts are often preserved, and may be utilised as an ingredient in opposite foodstuffs. Pickled walnuts that are the integral product can be inoffensive or tasteful depending on the protective result. Walnut butters can be homemade or purchased in both raw and roasted forms. All walnuts can be consumed on their own (raw, toasted or pickled) or as construct of a mix such as muesli, or as an foodstuff of a supply. For example, walnut soup and walnut pie are braced using walnuts as a water ingredient. Walnut Whip, coffee and walnut cover, and pickled walnuts are much examples.
In 2016, the US Content and Medicine Brass (FDA) provided a Hedged Health Right allowing products containing walnuts to state: “Auxiliary but not definitive search shows that ingestion 1.5 ounces per day of walnuts, as object of a low wet fat and low cholesterol diet and not resulting in exaggerated caloric intake, may reduce the risk of coronary mettle disease.” The FDA had, in 2004, refused to pass the involve that “Diets including walnuts can minify the seek of courageousness disease” and had sent an FDA Warning Honor to Field Foods in 2010 stating “not comfortable evidence to name a biologically acrobatic nub in walnuts that reduces the venture of thrombosis nerve