(n.) The coloring matter of Chinese yellow pods, the fruit of Gardenia grandiflora.
(n.) A red powder (called also polychroite), which is made from the saffron (Crocus sativus). See Polychroite.
Example Sentences:
(1) This suggested that the crocin dyes possessed chemopreventive effects on the early acute hepatic damage induced by AFB1 or DMN.
(2) Systems with and without the polyene glycoside crocin were compared.
(3) Feeding experiments demonstrated that crocin dyes at 0.1% in the diet could suppress partially the chronic hepatic damage induced by multiple dosages of AFB1 or DMN, but at a higher concentration of 1% crocin dye failed to do so because of their host toxicity.
(4) The monophenol p-hydroxyacetophenone stimulates oxygen uptake, cysteine oxidation and crocin bleaching, whereas its concentration does not change.
(5) The system with crocin reacted with higher velocity with oxygen than did the control experiment without polyene.
(6) Crocin dyes are extracted from the fruits of Gardenia jasminoides and consist of carotenoids and geniposides as active principles.
(7) The sulfite radical anion (SO.3-) was found to react rapidly with the flavonoid quercetin (k = 2.5 x 10(8) dm3mol-1s-1) and the carotenoids crocin (k = 1.0 x 10(9) dm3mol-1s-1) and crocetin (k = 1.5 x 10(9) dm3mol-1s-1).
(8) Some of the commercially available carminic acid and crocin were also toxic.
(9) The effects of dietary administration of crocin dyes on the hepatic damage induced by aflatoxin B1 (AFB1) and dimethylnitrosamine (DMN) in rats were investigated.
(10) As a competitor, the carotenoid crocin was used, which was found to be bleached very efficiently by SO3.- (k = 1.0 x 10(9) dm3mol-1 s-1).
(11) Furthermore, the model carotenoid crocin is bleached and thiobarbituric-acid-reactive material (malondialdehyde) is produced from linolenic acid.
(12) The amino acid cysteine is oxidized by horseradish peroxidase, and the water-soluble carotenoid crocin is bleached by cooxidation.
(13) In the presence of crocin about 40% more linoleic acid hydroperoxides was formed than without the polyene but the linoleic acid break-down was equal in both experiments.
(14) The protective mechanisms of crocin dyes may be attributed to their carotenoids which are converted metabolically to retinoids in rats.
(15) In the presence of crocin the ratio of the isomers changed to 64:11:11:14.
(16) The antioxidant effects of manganese and other transition metals were studied as the inhibition of microsomal lipid peroxidation and crocin bleaching by peroxyl radicals.
Polychroite
Definition:
(n.) The coloring matter of saffron; -- formerly so called because of the change of color on treatment with certain acids; -- called also crocin, and safranin.