DENATURATION INHIBITOR AND METHOD FOR INHIBITING DENATURATION BY FREEZE-DRYING LOW-DENSITY LIPOPROTEINS CONTAINED IN BLOOD SERUM OR BLOOD PLASMA

摘要

Provided are a denaturation inhibitor obtained by freeze-drying low-density lipoproteins (LDL) contained in blood serum or blood plasma, a method for inhibiting denaturation by freeze-drying LDL contained in blood serum or blood plasma, and a reference standard which makes it possible to accurately measure the components of LDL. The denaturation inhibitor obtained by freeze-drying LDL contained in blood serum or blood plasma contains methionine as an active component. The method for inhibiting denaturation by freeze-drying LDL contained in blood serum or blood plasma is characterized in that the blood serum or blood plasma is freeze-dried after adding methionine thereto. The reference standard for the determination of the components of LDL contained in blood serum or blood plasma is characterized by containing LDL contained in the freeze-dried blood serum, and methionine, wherein a value is given for the content of the components of the LDL.