释义 |
lumiflavin Chem.|l(j)uːmɪˈfleɪvɪn| [f. L. lūmi(n-, lūmen light + flavin 2.] 6,7,9-Trimethylisoalloxazine, C13H12N4O2, a crystalline compound that is formed by ultra-violet irradiation of riboflavin in alkaline solution and shows a yellow-green fluorescence.
1934Chem. Abstr. XXVIII. 2036, 1000 l. whey yields 170 mg. pure lumiflavin. 1946Jrnl. Biol. Chem. CLXII. 96 Lumiflavin can either inhibit or stimulate the use of riboflavin or FAD by Lactobacillus casei, depending upon the relative amounts of lumiflavin present. 1956Jrnl. Biochem. (Tokyo) XLIII. 643 To estimate the fluorescence of flavin separately from similar fluorescent substances in living body, the procedure of converting flavins to lumiflavin is of excellent one [sic]. 1962S. Udenfriend Fluorescence Assay in Biol. & Med. vii. 243 Riboflavin can also be converted to the more highly fluorescent derivative, lumiflavin, by photodecomposition in alkaline solution, the formation of lumiflavin involving cleavage between the ribitol and flavin ring. |