REDUCING TRANSPORTATION DAMAGE TO GRAPES AND STRAWBERRIES

In-transit vibration damage to grapes and strawberries results in reduced quality for the consumer and reduced profits for the produce industry. To solve this problem, the first step is to determine which vibrational frequencies are causing the damage. In various tests, grapes and strawberries were subjected to different frequencies at constant force levels. The effects of the vibration treatments were evaluated on the basis of grading, color analysis, firmness, respiration rate and ethylene production rate. The critical frequency was found to lie between 7.5 and 10 Hertz for both commodities. Color change and respiration rate were shown to be good indicators of damage in grapes. Strawberries did not show a significant effect due to color. Firmness was not affected by vibration in either commodity.


Subject(s):
Issue Date:
1990-02
Publication Type:
Journal Article
PURL Identifier:
http://purl.umn.edu/26972
Published in:
Journal of Food Distribution Research, Volume 21, Number 1
Page range:
193-202
Total Pages:
10




 Record created 2017-04-01, last modified 2017-08-24

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