quercetin

[kwur-si-tin]

noun

Chemistry.

1. a yellow, crystalline, slightly water-soluble powder, C 1 5 H 1 0 O 7 , obtained from the bark of the quercitron and other vegetable substances, used as a yellow dye; flavin.

quercetin

/ ˈkwɜːsɪtɪn, kwɜːˈsɛtɪk, -ˈsiː- /

noun

1. Also called: flavin. a yellow crystalline pigment found naturally in the rind and bark of many plants. It is used in medicine to treat fragile capillaries. Formula: C 15 H 10 O 7 ; melting pt: 316–7°C

Other Word Forms

• quercetic adjective

Word History and Origins

Origin of quercetin¹

1855–60; < New Latin quercēt ( um ) an oak grove ( Latin querc ( us ) oak ( quercine ) + -ētum suffix of places where a given plant grows) + -in ²

Word History and Origins

Origin of quercetin¹

C19: from Latin quercētum an oak forest (from quercus an oak) + _-in

Example Sentences

For example, the skin of an apple contains quercetin, a powerful antioxidant, along with much of the fruit’s dietary fiber.

From Salon

We spied a paper showing that quercetin is a good inhibitor of ALDH.

From Salon

Quercetin is a phenolic compound found in the skins of grapes, so it's much more abundant in red than white wines because red grape skins are left in longer during the fermentation process than white grape skins.

From Salon

Then, we added the suspected inhibitors – quercetin, as well as some other phenolics we wanted to test – to see whether they slowed the process.

From Salon

These tests confirmed that quercetin was a good inhibitor.

From Salon