臭氧发生器产量及冷库类型与臭氧积累量关系

Relationship between the capacity of ozone generator and ozone concentration accumulated in two types of cold storage rooms

冷藏配合臭氧处理进行果蔬保鲜是一项新型的保鲜方式。掌握不同产量的臭氧发生器在不同类型冷库中应用时臭氧浓度的变化规律,对果蔬贮藏具有重要意义。该文研究了臭氧产量分别为0.2、0.49和0.94g/h的3种臭氧发生器,分别放置在两种类型、容积均为100m3、温度为(0±0.5)℃冷库中,臭氧浓度的积累规律。结果表明,臭氧发生器的产量对库内臭氧积累量有极显著影响,随发生器产量的增大积累浓度增加。装配式气调库在120～140min、砖混结构冷库在60～90min时臭氧浓度达到最高值,而后基本维持在最高值时的浓度水平上。产量为0.94、0.49和0.2g/h的3种臭氧发生器在装配式冷库中臭氧累积最高浓度分别为1.37、0.71和0.30mg/m3,臭氧浓度与时间的回归曲线相关系数分别是0.9234、0.9252和0.9689;在砖混结构冷库中,臭氧累积最高浓度分别为1.25、0.62和0.23mg/m3,臭氧浓度与时间的回归曲线相关系数分别是0.7293、0.8816和0.9105。装配式气调库内臭氧累积浓度显著高于砖混结构冷库内臭氧累积浓度。

Cold storage combined with ozone treatment is a new method used in storage of fruits and vegetables.It is important to determine the concentrations of ozone produced by ozone generators with different capacities applied in different types of cold storage rooms for fruits and vegetables.The concentrations of ozone produced by three kinds of ozone generators(ozone yield:0.2,0.49 and 0.94 g/h,respectively) applied in two different types of cold storage rooms(volume of 100 m3 and temperature of(0±0.5)℃)were inv...