Effects Of Vibration On Respiration And Modified Atmosphere Package Quality Of Cherry-tomato

Recently, more and more researches are focused on protection of fruits during transport. It is clear that vibration has great effect on respiration of fruits. In condition of slight vibration leading to no damage, the bigger the vibration acceleration is, the bigger the respiration is when the acceleration is big enough.The research mainly contains 5 contents:To prove whether damage has effects on respiration of cherry-tomato, tests were taken to analyze the relationship between damage and respiration by dropping the cherry-tomatoes at different heights. It is proved that damage could accelerate respiration of cherry-tomato. Short-vibration tests were taken to confirm the critical vibration intension at different extents and accelerations compared to static ones and parameters of long-vibration tests were made certain.Long-time-vibration tests were taken at different extents and accelerations. During the tests O2 and CO2 concentrations were recorded to calculate respiratory rates and analyze the effects of vibration parameters on the respiratory rates of cherry-tomatoes in order to provide attestation for discussing and establishing of the model of respiration rates of cherry-tomatoes.Compares of respiration rates were made between static cherry-tomatoes and vibrated ones and effects of vibration were analyzed. Moreover changes of physiological parameters, such as weight-loss rates, rigidity, acidity, were measured in order to confirm the decline of quality and loss of weight that vibration brought to cherry-tomatoes. Temperatures and humidity in packages with static and vibrated cherry-tomatoes were measured through temperatures and humidity sensors and supervising instruments to analyze respiration of cherry-tomatoes in different condition in order to provide more theory for modified atmosphere.According to tests results, parameters of models of cherry-tomatoes were worked out using SAS analysis software. On the basis of parameters, respirations of static cherry-tomato were calculated. And ratio between static cherry-tomato and vibrated ones were worked out. Models including M-M model, multinomial model and exponential model were established and adjustfied according to test results.