opal® is the brand name for

apple An apple is an edible fruit produced by an apple tree (''Malus domestica''). Apple trees are cultivated worldwide and are the most widely grown species in the genus ''Malus''. The tree originated in Central Asia, where its wild ancestor, ' ...

cultivar A cultivar is a type of cultivated plant that people have selected for desired traits and when propagated retain those traits. Methods used to propagate cultivars include: division, root and stem cuttings, offsets, grafting, tissue culture ...

'UEB 32642'. The variety originates from a natural crossing of ' Golden Delicious' with 'Topaz'. Developed by the Institute of Experimental Botany in

Prague Prague ( ; cs, Praha ; german: Prag, ; la, Praga) is the capital and List of cities in the Czech Republic, largest city in the Czech Republic, and the historical capital of Bohemia. On the Vltava river, Prague is home to about 1.3 milli ...

, it is grown by FirstFruits Farms LLC in

Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...

and marketed by FirstFruits Marketing. It is also cultivated in Austria, Italy, Spain, Germany, Slovenja, France and the United Kingdom. 'UEB 32642' is a

variety Variety may refer to: Arts and entertainment Entertainment formats * Variety (radio) * Variety show, in theater and television Films * ''Variety'' (1925 film), a German silent film directed by Ewald Andre Dupont * ''Variety'' (1935 film), ...

registered at the

Community Plant Variety Office The Community Plant Variety Office (CPVO) is an agency of the European Union, located in Angers, France. It was established in 1994. Its task is to administer a system of plant variety rights, also known as plant breeders' rights, a form of in ...

of the

European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been de ...

under EU N°: 16749. This variety of apple is naturally low in

polyphenol oxidase Polyphenol oxidase (PPO; also polyphenol oxidase i, chloroplastic), an enzyme involved in fruit browning, is a tetramer that contains four atoms of copper per molecule. PPO may accept monophenols and/or ''o''-diphenols as substrates. The ...

and is often sold pre-sliced.

References

External links

Opal Brand Page

Opal Information Page

Institute of Experimental Botany
Academy of Sciences, Czech Republic Czech apples Apple cultivars {{apple-fruit-stub