MECHANICAL BRUISING TO STRAWBERRY CAUSED BY VIBRATIONAL EQUIPMENT

Document Type : Original Article

Authors

1 Agricultural Engineering Department, Faculty of Agriculture, Ain Shams University, Egypt.

2 Horticulture Department, Faculty of Agriculture, Ain Shams University, Egypt.

Abstract

Packaged strawberry of two cultivars grown in Egypt were submitted to vibrational equipment. During test, the accelerations at three different positions of the column of crates were measured. Vibrational energy during transportation fruits was 1200 J/kg resulting bruise 7, 7.3% for the two cultivars Festival and Fortuna, resp. Bruise due to vibration stress occurred in 25 and 48.2% for Festival and Fortuna cultivars, respectively. The degree of maturity of 80-85% to less damage, where the proportion of the damage with the highest vibratory energy (2100 J/kg), while 25%. Exposed strawberries placed in the middle crate into the biggest damage where the percentage of damage to 50% at the end of the storage period.

Keywords


Barchi, G. L. A. Berardinelli, A. Guarnieri, L. Ragni, C. Totaro Fila, (2002). Damage to Loquats by Vibration-simulating Intra-state Transport. Biosystems Engineering, vol.82, p.305-312.
Bartram R K; Fountain J; Olsen K; O’Rourke D (1983). Washington State apple condition at retail (eating quality). Proceedings of Washington State Horticulture Association, 79, 36–46
Bollen A F; De La Rue B T (1990). Handling impacts for kiwifruit, Asian pears and apples. ASAE Paper No. 90-6005
Brown G K; Burton CL; Sargent S A; Schulte Pason N L; Timm E J; Marshall D E (1987). Apple packing line damage assessment. ASAE Paper No. 87-6515
Burton CL; Brown G K; Shulte Pason N L; Timm E J (1989). Apple bruising related to picking and hauling impacts. ASAE Paper No. 89-6049
Chandler, C. K., B. M. Santos, N. A. Peres, C. Joquand, A. Plotto, and C. A. Sims, 2009. ‘Florida Radiance’ Strawberry.” HortScience 44: 1769–1770.
Chandler C. K., D. E. Legard, D. D. Duningan, T. E. Crocker and C. A. Sims. (2000). ‘Strawberry Festival’ Strawberry. HortScience 35: 1366-1367.
Holt, J. E. and D. Schoorl, (1982). Strawberry bruising and energy dissipation. Journal of Texture Studies, 13 (3): 349-357.
Peleg K; and S. Hinga (1986). Simulation of vibration damage in produce transportation. Transactions of the ASAE, 29(2), 633–641
Peleg K., (1985). Produce Handling Packaging and Distribution. AVI Publishing Company, Westport
Snowdon, A. L. (1990). A color atlas of post-harvest diseases and disorders of fruits and vegetables. General introduction and fruits (vol. 1). London, England: Wolfe Publishing, p. 250.
Tou, J. T. and R. C. Gonzalez, (1974). Pattern Recognition Principles, Addison-Wesley Publishing Company, Reading, Massachusetts.