Journal
FOOD AND BIOPROCESS TECHNOLOGY
Volume 7, Issue 7, Pages 1903-1916Publisher
SPRINGER
DOI: 10.1007/s11947-013-1190-9
Keywords
Fruit storage; Computational fluid dynamics; Diffusion-adsorption; Porous medium; Simulation
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Funding
- Institute for the Promotion of Innovation by Science and Technology in Flanders [IWT 060720]
- Belgian Association of Fruit and Vegetable Co-operatives (VBT)
- South African Research Chairs Initiative of the Department of Science and Technology
- National Research Foundation
- South African Postharvest Innovation Programme (PHI)
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1-Methylcyclopropene (1-MCP) is a synthetic plant growth regulator used commercially to delay ripening of fruits. 1-MCP (SmartFresh(TM)) is applied in gaseous form (as a fumigant) in the cool store room. This paper uses a porous medium computational fluid dynamics model to numerically analyze the distribution of 1-MCP in cool store rooms for apple fruit. The effects of air circulation, room shape, and bin material were investigated. Dose calculation based on filling density was explored. The 1-MCP distribution in commercial cool stores, under room cooling condition, was uniform irrespective of room shape. Rooms filled with fruit in wooden bins deplete 25 % more of the active substance than rooms filled with fruit in plastic bins. The calculated dose increases linearly with the amount of fruit in the cool store (filling density). Hence, this study suggests that dose prescription based on filling density is feasible.
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