The corrugated trays allow fruit and vegetables to extend shelf life when compared with reusable plastic crates (RPCs), according to a research by Italy's University of Bologna.
The research found that corrugated trays reduce the risk of foodborne illnesses and allows stay fresher and safer, thus facilitating in increased freshness.
Additionally, the trays also reduce microbiological contamination, the study revealed.
The research focused on the exchange of microbes between produce and packaging and how different packaging materials can influence cross contamination.
European Federation of Corrugated Board Manufacturers (FEFCO) market and environment director Jan Gramsma said: "When it comes to preventing microbiological contamination, the science is in no doubt: corrugated board is far superior to RPC.
"Both the European Food Safety Agency and the US Centre for Disease Control and Prevention say fresh produce can be a source of contamination leading to foodborne Illnesses."
As part of the study, the researchers packed peaches in deliberately contaminated corrugated trays and RPCs, with the same number of Escherichia coli, Saccharomyces cerevisiae and Pseudomonas spp.
The researchers then measured microorganisms transfer rate of to packaged fruit.
The results found that the fruits in plastic crates reached contamination levels in 48 to 72 hours earlier than those in corrugated trays.
The tests also revealed that in some conditions, such as high storage temperatures of up to 95%, the peaches packed in RPCs were contaminated with E. coli after 48 hours when packaged in deliberately contaminated plastic crates.
However, contamination of E. coli levels did not pass 25% for the peaches packed that were packaged in corrugated trays, and under the same levels of microorganisms.
Gramsma added: "Until now, we did not have undeniable proof that packaging was a factor. Our message to retailers is simple and clear: corrugated keeps produce fresh and safe."
