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radicchio
Radicchio ( or ; (:raˈdikkjo)) is a leaf chicory (''Cichorium intybus'', Asteraceae), sometimes known as Italian chicory, and is a perennial. It is grown as a leaf vegetable which usually has white-veined red leaves. It has a bitter and spicy taste, which mellows when it is grilled or roasted.
== History ==
Pliny the Elder claimed radicchio was useful as a blood purifier and an aid for insomniacs in ''Naturalis Historia''. In fact, radicchio contains intybin, a sedative/analgesic, as well as a type of flavonoid called anthocyanin which is used for making dye-sensitized solar cells.
Modern cultivation of the plant began in the fifteenth century, in the Veneto and Trentino regions of Italy, but the deep-red radicchio of today was engineered in 1860 by the Belgian agronomist Francesco Van den Borre, who used a technique called ''imbianchimento'' (whitening), ''preforcing'', or blanching to create the dark red, white-veined leaves: radicchio plants are taken from the ground and placed in water in darkened sheds, where lack of light and ensuing inhibition of chlorophyll production cause the plants to lose their green pigmentation.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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