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首页> 外文期刊>International Journal of Refrigeration >Humidification of chilled fruit and vegetables on retail display using an ultrasonic fogging system with water/air ozonation
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Humidification of chilled fruit and vegetables on retail display using an ultrasonic fogging system with water/air ozonation

机译：使用带水/空气臭氧化作用的超声雾化系统对零售展示中的冷藏水果和蔬菜进行加湿

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摘要

The effects of an ultrasonic humidification system were assessed during retail display of unwrapped chilled fruit and vegetable produce. Produce and equipment factors were compared during two consecutive 7-day trials, one with fogging (termed 'wet') and one without (termed 'dry'). No appreciable differences in mean product temperatures were found (4.6℃ for wet, 4.3℃ for dry), but there were slight differences in cabinet performance in terms of air temperatures and refrigeration effect. Despite a considerable increase in drainage water from the cabinet (53 1 per day for wet, 30 for dry), no change to the cabinet's defrost schedule was required. Humidification reduced weight loss with all products. After 7 days of display the highest reduction, almost 50%, was achieved with mushrooms. Humidification also reduced the rate of deterioration in the appearance of the produce on display No adverse effects on the microbial quality of samples of produce were found, Slightly higher numbers of airborne microbes were sampled from the air circulating in the cabinet during the wet trial, but there was no significant increase in numbers of microbes landing on settle plates on the display shelves. Numbers of bacteria in the water sterilisation system were low and no Legionella species were isolated from either the wet or the dry trial water samples.
机译：在未包装的冷藏水果和蔬菜产品的零售展示期间，评估了超声波加湿系统的效果。在连续两个为期7天的试验中比较了产品和设备因素，一种是起雾（称为“湿”），另一种是不起雾（称为“干”）。在平均产品温度上没有发现明显的差异（湿的为4.6℃，干的为4.3℃），但柜内性能在空气温度和制冷效果方面略有差异。尽管橱柜的排水量大大增加（潮湿的每天53 1，干燥的每天30），但无需更改橱柜的除霜时间表。加湿减少了所有产品的重量减轻。展示7天后，蘑菇的降幅最高，达到近50％。加湿还可以减少所展示产品外观的恶化速度。未发现对产品样品微生物质量的不利影响。在潮湿试验期间，从柜内循环空气中取样的空气传播微生物的数量略多，但降落在展示架上沉降板上的微生物数量没有显着增加。水消毒系统中的细菌数量很低，从潮湿或干燥的试验水样品中都没有分离到军团菌。

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