目前食品的保存方法在烹饪加工、包装材料及保存环境等方面进行了诸多改良,为了符合实际需求,当前的重点是保持食品各自的鲜度及风味,使之适合消费者的口味。此外,随着超级市场和零售小店的崛起,跨地区流通的商品迅速增多,因此,保持食品的鲜度变得日益重要。 At present, the methods for preserving food have been greatly improved in terms of cooking, packaging materials and preservation of the environment. In order to meet the actual demand, the current emphasis is on keeping the freshness and flavor of the food products suitable for consumers’ tastes. In addition, with the rapid rise of supermarkets and retail shops, the number of goods flowing across regions has increased rapidly. Therefore, maintaining the freshness of foods has become increasingly important.