抄録
It was found that in the determination of thiamine of high lipid samples, such as egg yolk, the recovery of added thiamine is very low as about 40%. Therefore, the authors have attempted to improve the determination procedure of thiamine in egg yolk and it was proved that 98-102% recovery rates were obtained by removing the lipids by benzene extraction. By this improved procedure, the incorporation of thiamine supplemented in diet into egg was studied with thiamine hydrochloride and O, O'-isobutyrylthiamine disulfide administration.