Postharvest hygiene management in the litchi export chain

 

 

Karen de Reuck, Karin Zeeman and Lise Korsten*

Department of Microbiology and Plant Pathology, University of Pretoria, Pretoria, South Africa

 

 

 

Abstract

Purpose of the review: This review discusses the influence of i) postharvest handling, ii) fruit treatments, and iii) storage and distribution on litchi microflora dynamics, with specific reference to decay-causing and foodborne pathogens. It also addresses the importance of good hygiene practices to ensure safe and high-quality litchis for marketing and human consumption.

Main findings: Hygiene management starts in the orchard and should be maintained throughout the supply chain. Harvesting practices, postharvest handling and sanitation are the most essential factors contributing to the prevention of litchi infection by decay-causing organisms and contamination by foodborne pathogens.

Directions for future research: Controlled atmosphere (CA) storage or modified atmosphere packaging (MAP) in combination with protectants (biocontrol or antimicrobial compounds) are effective methods for preventing decay and contamination. Therefore, further research should be aimed at developing “smart-intelligent consumer units” for the litchi industry in order to retain overall fruit quality during marketing and distribution. Furthermore, CA storage and MAP technology can potentially replace or reduce the currently used sulphur dioxide fumigation.

 

Keywords: postharvest decay; contamination sources; hygiene control; sanitation

 

Stewart Postharvest Review 2008, 3:1

Published online 01 June 2008

doi: 10.2212/spr.2008.3.1