Produce drying system utilizing multiple energy sources

Details Produce drying system utilizing multiple energy sources Produce drying system utilizing multiple energy sources

A - Human Necessities

23

B

A23B 7/00 (2006.01) A23B 7/005 (2006.01) A23B 7/01 (2006.01) A23B 7/015 (2006.01) A23B 7/02 (2006.01) A23B 7/16 (2006.01) A23L 3/00 (2006.01) A23L 3/005 (2006.01) A23L 3/26 (2006.01) A23L 3/30 (2006.01) A23L 3/32 (2006.01) A23L 3/40 (2006.01) A23L 3/42 (2006.01) A23L 3/54 (2006.01) F26B 3/28 (2006.01) F26B 3/34 (2006.01) F26B 17/04 (2006.01) F26B 21/06 (2006.01)

Patent

CA 2382841

Methods and systems for extending the shelf life of produce are disclosed which provide an accelerated drying process for washed produce in order to further clean and fully crystallize a layer of solute-laden slurry that has been applied on the external surface of an item of produce (20). The drying process typical comprises three basic steps. The first step (10) is to mechanically remove excess moisture from the solute-laden slurry to form a moisture-reduced slurry layer (22) on the external surface of the item of produce (20). The second step (12) is to employ heat and/or light energy to accelerate the in-situ moisture removal process to create a protective stratum (24) on the external surface of the item of produce (20). The third step (14) is to further remove remaining moisture to permit the formation of crystalline structures (26) on the external surface of the item of produce (20).

L'invention concerne des procédés et des systèmes servant à prolonger la durée de conservation de produits de consommation et faisant intervenir un processus de séchage accéléré de produits nettoyés permettant de mieux nettoyer et de cristalliser intégralement une couche de suspension chargée de soluté appliquée à la surface extérieure d'un produit (20). Le processus de séchage classique comprend trois étapes de base. La première étape (10) consiste à supprimer mécaniquement l'humidité excessive de la suspension chargée de soluté de manière à former une couche de suspension à humidité réduite (22) à la surface extérieure de ce produit (20). La seconde étape (12) consiste à utiliser de la chaleur et/ou de la lumière pour accélérer le processus de suppression d'humidité in situ, d'où la formation d'une couche protectrice (24) à la surface extérieure dudit produit (20). La troisième étape (14) consiste à supprimer l'humidité restante de manière à permettre la formation de structures cristallines (26) à la surface extérieure de ce produit (20).

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