Abstract
The choline content in oilseeds used for the oil industry was determined from the standpoint of food chemistry. Several conditions for reineckate method were investigated previously to the choline determination. Results are as follows;
1) The crystals of choline reineckate grow larger, when the concentration of ammonium reineckate methanol solution lessens.
2) The decomposition of choline reineckate in water or acetone has been found to be affected by light, and the decomposition in acetone is much larger than that in water.
3) Rape seed and oil-meal of the same were found to be considerably better sources of choline than any of the oilseeds and oil-meals examined.
4) The choline loss ranged from 3 to 27% while solvent extracting and expelling. The loss in solvent extracting is generally more than in expelling.
