Fatty emulsing contg. reducing sugar and method for sterilizing same

A fatty emulsion containing a reducing sugar, being an oil-in-water emulsion prepared by emulsifying fat or oil with an emulsifying agent wherein the aqueous phase contains both a reducing sugar and a buffer consisting of an organic acid exhibiting an acid dissociation constant of 5.0 to 7.5 in water or a salt thereof and the pH is adjusted to 5.0 to 7.5; a packaged fatty emulsion containing a reducing sugar, wherein a liquid medicine that contains a reducing sugar and fat or oil and that is sterilized in a state containing carbon dioxide dissolved therein is held in a plastic container for infusion fluid and the plastic container is held together with a carbon dioxide absorbent in a substantially oxygen-impermeable outer container; a process for the production of them; and a method for sterilizing the same. These fatty emulsions are suppressed in formation of free fatty acids and in composition of the sugar, thus being high-quality stable ones little causing discoloration.