ISHS HortForum Episode 4: Dynamic Controlled Atmosphere Storage: A paradigm shift in postharvest science

Fecha de publicación: 20/02/2024
Fuente: ISHS (International Society for Horticultural Science)
Post date: Tuesday 20 February 2024
ISHS Secretariat

4th episode in a new ISHS Horticulture Debate series called "Hort Forum"
Dynamic Controlled Atmosphere Storage: A paradigm shift in postharvest science
Speaker: Angelo Zanella , Research Centre Laimburg, Ora, (Italy)

Organizers: Ted DeJong, UC Davis (USA), George Manganaris, Cyprus University of Technology (Cyprus) and Giancarlo Colelli, University of Foggia (Italy)
Panelists: Bart Nicolai, Katholieke Universiteit Leuven (Belgium), Chris Watkins, Cornell University (USA), Robert Prange, Agriculture and Agri-Food Canada (Canada - Retired) and Auri Brackmann, Federal University of Santa Maria (Brazil)

Wednesday, April 3, 2024, Hours: 17:00 – 19:00 Central European Time (CET)
Participating is free of charge - registration is required (see registration link down the description below)
The landscape of postharvest storage technology is experiencing a paradigm shift, marked by advancements in controlled atmosphere (CA) storage for horticultural products. Extending the postharvest lifespan of certain horticultural products, achieved through optimal cooling procedures, can be enhanced by adjusting the storage atmosphere to a 'so called' optimal composition, based on empirically determined values set consistently for the entire storage duration. Evolution has progressed from static to dynamic CA (DCA) conditions, adapting specifically to the unique requirements of different fruit. Recent developments in sensor technologies capable of monitoring physiological responses to hypoxia have paved the way for exploration beyond traditional oxygen thresholds, promising enhanced quality and extended marketing potential for horticultural products. Notably, the reduction of oxygen levels to extremes has shown efficacy in preventing physiological disorders such as superficial scald, rendering the use of postharvest treatments such as diphenylamine (DPA) obsolete. It has been critical to validate bio-sensing technologies for the determination of the Lowest Oxygen Limit (LOL) in order to enable the customization of atmosphere composition based on specific fruit requirements, including cultivar variations, pedo-climatic factors, and agronomic conditions throughout the storage phase. Ethanol sensors and the availability of fluorescence sensors have played pivotal roles in achieving DCA. The introduction of Respiratory Quotient (RO), later coupled with CO2-rate, sensing has raised expectations for further advancements, such as the fusion of sensor information, integration with artificial intelligence (AI), and the development of new sensors for monitoring chilling and carbon dioxide levels. While DCA has proven successful in many practical applications, the challenges lie in navigating the post-DCA phase, especially in reaching distant or complex markets. Overcoming these challenges necessitates the integration of comprehensive know-how and specialized equipment.

For more details and to watch the on-demand recording go to:

Posted March 4, 2024Tags: HortForumDynamic Controlled Atmosphere StorageCategories: General InterestHortForum