13 巻 (1987) 4 号 p. 211-215
The stability of vitamin C (VC) in hyperalimentation fluids with a fat emulsion combination was studied. The total VC content when dehydroascorbic acid was reduced to ascorbic acid and the ascorbic acid content without the reduction process were determined by high-performance liquid chromatography.
Measurements were performed serially while the samples were stored with or without light shielding under a 500 lux fluorescent light or in a cool, dark place. The total VC residue was more than 90% after 12 hours without light shielding and after 24 hours with light shielding. The stability was adequate even after 7 days when the samples were stored in a cool, dark place.