Freshness preservative for livestock meat, fish meat and their processed products

摘要

PROBLEM TO BE SOLVED: To obtain the subject freshness-holding agent having good safety and having a high color tone-holding effect by using a specific substance among ubiquinone compounds as an active ingredient. SOLUTION: This freshness-holding agent contains ubidecarenone as an active ingredient. The agent may further contain vitamin E and/or vitamin C. A color tone-holding agent contains ubidecarenone as an active ingredient. Therein, the oxidation of hem pigments in meats or fishes can be prevented to hold the color tones of the meats or fishes. The treatment of the meats, fishes and their processed products with the ubidecarenone enables the retention of the freshness of the meats, fishes and their processed products.