Abstract
This work aimed to show heterogeneities in shelf life of table grapes from a same batch during road refrigerated transportation. The monitoring of temperature and relative humidity of air was done with a wireless sensor network strategically distributed among grapes boxes and pallets. The ambient conditions and time of exposure were associated with a linear predictive model of water loss in order to estimate fruits shelf life. Results showed that the loss of dynamic life of grapes varied according to the box position on different pallets within the refrigerated transport vehicle, due to differences in the conditions that fruits were exposed to. It was observed high heterogeneity in shelf life of the evaluated batch of grapes during transportation, with differences of 71 days between grape boxes. With that, one can conclude that these differences must be taken into account in the following stages of grapes cold chain.
Highlights
Transport is one of the stages of production and distribution chains with significant losses and damages to perishable products (Derens-Bertheau et al, 2015; Jedermann et al, 2011; RuizGarcia & Lunadei, 2010)
The objective of this work was to show the effect of ambient actual ambient air conditions, including temperature and relative humidity, in which table grapes were exposed during their refrigerated transportation from the factory to the distribution center, relating it to the fruits actual predicted shelf life
In no time was there any interferences in the management routine performed by the evaluated company, in order to have a realistic history of the entire logistics process and its impact on the fruits shelf life
Summary
Transport is one of the stages of production and distribution chains with significant losses and damages to perishable products (Derens-Bertheau et al, 2015; Jedermann et al, 2011; RuizGarcia & Lunadei, 2010) It happens mainly because the food remains for long periods exposed to high variable ambient conditions, due to the thermal amplitude. Due to its location and the high territorial extension, Brazil has different types of climate, which makes the accommodation of perishable products in adequate climate conditions a fundamental step. It serves both to maintain the quality of the product until the stage in the distribution chain and to be accessible to different locations. It might happen due to the lack of infrastructure and knowledge of how environmental conditions affect product quality
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