ビタミンB_2脂肪酸エステルに関する研究 : (I)リボフラビンテトラパルミチン酸エステル

概要

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To obtain fat soluble riboflavin derivatives, the authors synthesized riboflavin palmitate by esterification of riboflavin with palmityl chloride. Riboflavin palmitate thus obtained is soluble in various organic solvents and neutral fat, but not in water. The melting point is 78.5℃. The absorption and fluorescence emission spectra of its alcoholic solution were studied and its Rf values for various solvents were also obtained. Then, chemical structure of the riboflavin palmitate was studied by the estimation of riboflavin, and palmitic acid in its molecule, elemental analysis, and the test of periodate oxidation. From the above experimental results, it was found that the riboflavin palmitate is riboflavin-2', 3', 4', 5'-tetrapalmitate.
日本ビタミン学会の論文