Comparison of physicai and chemical parameters of three market available median/long chain fat emulsions / 中华临床营养杂志

ABSTRACT

Objective To compale the physical and chemical parameters of three market available medi-an/long chain fat emulsions.Methods The quality properties were determined and compared according to the fat emulsion injection quality standards in the Chinese Pharmacopeia Convention,the United States Pharmacopeia Con-vention,and the National Standard.Results Products Athe pH value was between 8.2-8.3;the particles with a size larger than 1 μm were 1.23%-1.53% and no particles were larger than 5 μm;the mean particle size was 0.246-0.256μm;the acid value was 0.2;the peroxide and methoxyl aniline values were 0 and 0.9-1.4;the he-molysis phosphatide was 0.6-0.9 g/L. The contents of fat,glycerin,and triglycerides were more than 97% of the labeled amounts;the content of phosphorus was 0.46-0.49 g/L. Products Bthe pH value was between 8.2;the partocles with a size larger than 1 μm were 0.81%-1.62% and no particles were larger than 5 μm;the mean parti-cle size was 0.239-0.241 μm;the acid value was 0.4-0.5;the peroxide and methoxyl aniline values were 0 and 0.8-1.4;the hemolysis phosphatide was 0.2-0.6 g/L. The contents of fat,glycerin,and triglycerides were more than 94% of the labeled amounts;the content of phosphorus was 0.42 g/L. Products Cthe pH value was between 7.7-8.1;the particles with a size larger than 1 μm were 0.42%-0.86% and no particles were larger than 5 μm;the mean particle size was 0.249-0.262 μm;the acid value was 0.3-0.4;the peroxide and methoxyl aniline values were 0 and 1.8-2.9;the hemolysis phosphatide was 0.5-0.8 g/L. The contents of fat,glycerin,and triglycerides were mole than 96% of the labeled amounts;the content of phosphoms was 0.44-0.46 g/L. Conclusion All properties of the median/long chain fat emulsions produced by the three manufacturers met the National Standard.