BIOACTIVE PEPTIDE-CONTAINING POWDER

摘要

PROBLEM TO BE SOLVED: To improve the stability of a bioactive peptide in a powdering step, and to provide a bioactive peptide-containing powder especially suitable for allowing the bioactive peptide to be absorbed by inhalation, and a preparation for the inhalation. SOLUTION: This method for stabilizing the bioactive peptide when producing the bioactive peptide-containing powder by drying an aqueous liquid containing the bioactive peptide is characterized in that at least one kind selected from the group consisting of a nonionic surfactant, a water-soluble nonionic organic binder, a hydrogenated lecithin and mannitol is included in the aqueous liquid.