Compositions for food quality preservatives, inks for food quality preservatives, food quality preservatives, methods for detecting food quality preservatives, and methods for inspecting food packaging

摘要

PROBLEM TO BE SOLVED: To efficiently perform both an inspection of metal foreign matter in a sealed food package and an inspection of omission of attachment of a food quality preserving agent, a composition for a food quality preserving agent, an ink for a food quality preserving agent, Provided are a food quality preservative containing the composition or the ink, a method for detecting a food quality preservative in a food package, and a method for inspecting the food package. SOLUTION: A step of magnetizing a magnetic material contained in a food quality preserving agent or strengthening the magnetic force of the magnetic material, detecting the magnetic material having the magnetized or magnetic force strengthened, and detecting the presence or absence of the food quality preserving agent. And a method for detecting a food quality preserving agent in a food packaging body containing a food quality preserving agent containing a magnetic substance containing the same. [Selection diagram] None