单词 | cryptoxanthin |
释义 | cryptoxanthinn. Chemistry. A yellow carotenoid pigment which is a metabolic precursor of vitamin A and is commonly found in plants and in other sources such as egg yolk.Systematic name: 4-hydroxy-β-carotene; C40H56O. ΘΚΠ the world > life > biology > substance > pigment > [noun] > unspecified pigments > yellow safranine1868 lipochrome1887 carotenoid1913 phthiocol1933 cryptoxanthin1934 1934 Chem. Abstr. 28 1043 Cryptoxanthin... This new xanthophyll..constitutes almost ⅓ of the total pigment of the calyxes and berries of Physalis franchetti. 1972 Materials & Technol. V. xix. 671 α- and γ-carotene and cryptoxanthin are fairly common and probably, apart from β-carotene, the most active biologically. 1999 Newsweek 6 Dec. 92/1 The cryptoxanthin in mangoes, oranges and papayas seems to decrease the risk of cervical cancer. This entry has been updated (OED Third Edition, June 2011; most recently modified version published online March 2022). < |
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