| 释义 |
vitellin Chem.|vɪˈtɛlɪn, vaɪ-|
Also -ine.
[f. vitell-us + -in1.]
1. The albuminoidal substance in the yolk of egg, a mixture of albumin and casein.
1857Miller Elem. Chem., Org. 647 These bodies of minor importance, such as globulin and vitellin. 1867Bloxam Chem. 614 Yolk of egg contains a modification of albumen termed vitelline. 1886Buck's Handbk. Med. Sci. II. 640/1 The yolk..is a bright yellow mixture of about sixteen per cent. of vitellin, a substance resembling albumen.
2. A related substance found in the seeds of plants. Also attrib.
1882Bentley Man. Bot. (ed. 4) 35 The proteids exist in these grains as globulins, which hitherto have been known only to occur in animals, that is, as myosin-globulin and vitellin-globulin. 1885G. L. Goodale Physiol. Bot. (1892) 364 Weyl..holds that legumin is a mixture of vegetable vitellin and casein. |