Abstract
The total lipids extracted from market pressed ham were separated into phospholipid and neutral lipid fractions, and the fatty acid compositions of these lipid fractions were determined by gas-liquid chromatgraphy. Then, the fatty acid distribution in triglycerides of the lipids were studied by means of pancreatic lipase hydrolysis, and the triglyceride composition of the lipids were calculated according to the 1, 3-random-2-random distribution theory.
The fatty acid compositions of tested samples differed among the grades of commercial products in each lipid fraction and such differences were most remarkable in the fatty acid composition of neutral lipid fractions.
The structure and the composition of triglyceride of the lipids, extracted from some samples, were remarkably resemble to that of the pork lipid, and the lipids from the others had properties approximately closed to that of the mutton lipid. Thus, the properties of the lipids tested were considerably differed in the structure and composition of triglycerides among the grades of market pressed ham.
And, it was considered that the examination of fatty acid and triglyceride composition of the commercial products was applicable for the judgment of raw materials which may be used in the manufacture of pressed ham.
