. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture. IMPROVED METHODS FOR FAT ANALYSIS. 97 sixty minutes. The reaction is quadrimolecular with triglycerides. The flask is then placed in a water bath at 60° C, and the solution, after cool- ing to that temperature, titrated with N/2 hydrochloric acid, using 1 cubic centimeter of phenolphthalein as indicator, to the complete elim- ination of the pink color. The cooUng and dilution of the solution, due to the addition of the acid, occasionally give rise to small colored parti- cles; this can be obviated by a slight increase in
. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture. IMPROVED METHODS FOR FAT ANALYSIS. 97 sixty minutes. The reaction is quadrimolecular with triglycerides. The flask is then placed in a water bath at 60° C, and the solution, after cool- ing to that temperature, titrated with N/2 hydrochloric acid, using 1 cubic centimeter of phenolphthalein as indicator, to the complete elim- ination of the pink color. The cooUng and dilution of the solution, due to the addition of the acid, occasionally give rise to small colored parti- cles; this can be obviated by a slight increase in temperature. The end point is difficult to determine in the presence of aldehydes, which impart a dark reddish-brown color to the solution. Fish oils behave. cr> <z:^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Agricultural Experiment Station. Amherst, : Massachusetts Agricultural Experiment Station, 1907-1974
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