Humidifying treatment on the influence of different kinds of vegetables shelf quality

humidifying treatment on the quality of the different kinds of vegetables shelves xue-jie zhang Li Meibai shanshan Hu Hong ( Vegetable flower institute, Chinese academy of agricultural sciences, Beijing 100081 Ming: room temperature, the simulation of the supermarket shelf period of 12 h, humidifying treatment significantly reduce the weightlessness rate of the vegetables, effectively guarantee the freshness of the vegetables, among them, the best effect of preservation of relative humidity 90%; Vegetables are different weightlessness rate showed a significant difference, the clustering analysis shows that 8 kinds of vegetables, the common cabbage, broccoli for easy weightlessness vegetables, followed by carrots, cabbage lettuce, cucumber, beans for slight weightlessness vegetables, cabbage, Chinese cabbage is not easy to weightlessness vegetables; Supermarket without packing at room temperature, the common cabbage, broccoli humidification conditions for relative humidity of 90%, carrot, beans, cabbage lettuce, cucumber humidification conditions for relative humidity of 80%, cabbage, Chinese cabbage can be shelf sales without humidification conditions.

retail packaging at room temperature is the main form of the supermarket vegetables sales, advocate 'green' consumption in today, how to reduce the use of plastic packaging materials, extend the shelf life of vegetables, has become a problem urgently to be solved in the supermarket vegetables fresh. Antistaling agent and coating fund project: '11th five-year plan' national * 863 * project ( Although 2008 aa100803 preservation method has certain effect, but limited to, the supermarket without packing at room temperature, the common cabbage, broccoli humidification conditions for relative humidity of 90%, kidney beans, cucumbers, carrots and cabbage lettuce humidification conditions for relative humidity of 80%, cabbage, Chinese cabbage can be shelf sales without humidification conditions.

3 conclusion compared to 12 h shelf period, humidifying treatment significantly reduced the vegetables weightlessness rate, delayed the vegetables wilting phenomenon appears, achieve the goal of short-term fresh vegetables.

according to the result of vegetables weightlessness easy degree of clustering analysis, 8 kinds of vegetables can be divided into easy to weightlessness vegetables, broccoli, cabbage, easier to weightlessness vegetables, carrots, mild weightlessness vegetables cabbage lettuce, cucumber, bean one by one; It is not easy to weightlessness vegetables, cabbage, kale.

supermarket without packing at room temperature, the common cabbage, broccoli humidification conditions for relative humidity of 90%, kidney beans, cucumbers, carrots and cabbage lettuce humidification conditions for relative humidity of 80%, cabbage, Chinese cabbage can be without humidification conditions shelf sales.