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Effects of mechanical vibration on the storage quality of strawberry during road transportation.

[In Chinese. / En chinois.]

Author(s) : TIAN J., LI L., ZHANG Z., et al.

Type of article: Article

Summary

The road transport process was simulated in the vibration bench, the natural frequency of selected strawberry package was found to be 20.5 Hz by scanning frequency experiment. Fifteen same strawberry packages have been tested in the fixed frequency experiment under 17 Hz,19 Hz, 20.51 Hz, 22 Hz and 24 Hz, respectively. After the fixed frequency experiment, strawberries in the fifteen packages were divided into three groups to be stored at 0°C, 5°C and 10°C respectively. The effects of mechanical vibration on the hardness and SSC, titratable acid, vitamin C and MDA contents of each group of strawberries have been analyzed. The results showed that the storage qualities of strawberry were determined by both mechanical vibration frequencies in the transport process and storage temperature. At the same storage temperature, the qualities of the strawberries suffered natural frequency vibration test are the worst. After 9 days of 0°C storage, the strawberry's hardness has been reduced by 15.5%, while the strawberry MDA content has been increased by 30%. 0°C is the best storage temperature for strawberries suffered same frequency vibration test.

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Pages: 87-94

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