Freshner of plant Characteristic perishable food and paint null for freshness containment

摘要

PROBLEM TO BE SOLVED: To obtain a quality preserver and a coating material for quality preservation with which freshness of fresh foods can be maintained by using cinnamic acid and/or a cinnamic acid deriv. as the main component. SOLUTION: This quality preserver is obtd. by mixing cinnamic acid and/or a cinnamic acid deriv. (e.g. p-coumaric acid, caffeic acid, ferulic acid and conifenyl alcohol) in a mixture solvent of water and alcohol (preferably ethyl alcohol in preferably 100: (25 to 400) mixing ratio). The coating material for quality preservation in total 100 pts.wt. is obtd. by mixing 0.001 to 10 pts.wt. of cinnamic acid and/or the cinnamic acid deriv., 0 to 0.3 pt.wt. of polyamine, 0 to 1 pt.wt. of a surfactant (preferably sodium oleate), and 0.01 to 10 pts.wt. of a binder (preferably spermine) in the mixture solvent of water and alcohol above described.