Crossword clues for ionone
ionone
Wiktionary
n. (context chemistry English) Any of a series of closely related aromatic chemical substances that are part of a group of compounds known as rose ketones, including damascones and damascenones, found in a variety of essential oils.
Wikipedia
The ionones are a series of closely related chemical substances that are part of a group of compounds known as rose ketones, which also includes damascones and damascenones. Ionones are aroma compounds found in a variety of essential oils, including rose oil. β-Ionone is a significant contributor to the aroma of roses, despite its relatively low concentration, and is an important fragrance chemical used in perfumery. The ionones are derived from the degradation of carotenoids.
The combination of α-ionone and β-ionone is characteristic of the scent of violets and used with other components in perfumery and flavouring to recreate their scent.
The carotenes α-carotene, β-carotene, γ-carotene, and the xanthophyll, and β- cryptoxanthin, can all be metabolized to β-ionone, and thus have vitamin A activity because they can be converted by plant-eating animals to retinol and retinal. Carotenoids that do not contain the β-ionone moiety cannot be converted to retinol, and thus have no vitamin A activity.
Usage examples of "ionone".
It was first isolated by the eminent chemist Tiemann and formed the basis of his researches on artificial Violet perfume, and in 1893 he succeeded in preparing an allied body, which was termed Ionone and which had an odour even more like that of Violets than had Irone, and is now largely manufactured for the perfumery trade in making toilet waters and handkerchief extracts.