用液氮改善水果的冷藏,在国外也是近年来才发展起来的,如西德1972年有二座采用液氮贮藏有核水果的气调冷藏库投产。高温冷藏库中利用液氮与冷风机混合使用,其优点有:1．可以利用氮气来进行气体贮藏水果,由于氮气充入冷库内降低了氧气的浓度,促使水果呼吸强度减 The use of liquid nitrogen to improve the refrigeration of fruits is also developed in foreign countries in recent years. For example, in 1972, there were two air-conditioned refrigerators in West Germany that used liquid nitrogen to store nuclear fruits. High temperature cold storage tank using liquid nitrogen mixed with the chiller, the advantages are: 1. Nitrogen can be used for gas storage of fruits, as a result of nitrogen into the cold storage to reduce the concentration of oxygen, prompting the fruit to reduce the respiratory intensity