COMPARATIVE-STUDIES OF PHOSVITIN FROM CHICKEN AND SALMON EGG-YOLK

1. A method developed for the isolation of phosvitin from chicken egg yolk was successfully applied to the isolation of phosvitin from salmo n eggs. 2. Salmon roe phosvitin is smaller in molecular size than chic ken egg phosvitin. 3. Circular dichroism spectra of all phosvitins inv estigated displayed good similarities with spectra showing characteris tics of unordered and beta-sheet secondary structure. 4. The main comp onent in the Fourier transform infrared spectra of chicken egg phosvit in is indicative of unordered conformation, whereas the Fourier infrar ed data of the salmon egg phosvitin are consistent with more of beta-s heet structure compared to the chicken egg phosvitin.