flavyliowy

Flavyliowy is an adjective used in Polish chemistry and pigment literature to describe substances, reactions, or phenomena related to flavylium compounds. A flavylium compound is a cationic heterocycle derived from flavonoid systems, typically formed by protonation of an oxygen in a flavonoid-like skeleton.

Flavylium species are color-rich and exhibit pronounced pH-dependent equilibria. In plant pigments such as anthocyanins, the flavylium cation form is associated with red hues under acidic conditions, while other forms contribute to yellow to colorless species at higher pH. The term flavyliowy appears particularly in discussions of reactions involving flavylium cations or the color chemistry of flavonoid-derived pigments, including hydration, tautomerism, and interconversion among different flavylium forms.

In research contexts, the concept helps explain pigment stability, color changes, and dye behavior in food, plant biology, and materials science. While common in Polish-language literature, the direct English equivalent is typically "flavylium" or "flavylium-based," and the specific adjective "flavyliowy" is most often encountered in Polish summaries and reviews.

Related terms include flavylium salt, flavylium cation, and flavylium reactions, which describe the interconversions among flavylium species and their hydrated or closed forms. See also flavonoids, anthocyanins, and the color chemistry of plant pigments.