1.1 Agricultural and Biological Sciences 

Application of New Freezing Technologies for Introduced, Repaired Raspberry (Rubus idaeus) in Western Georgia

raspberry (Rubus ideaus L.) fluidized bed blast freezer HACCP

Authors

June 30, 2025

In almost every region of Georgia there are agricultural areas with favorable agro-climatic conditions for growing raspberries (Rubus idaeus). Although raspberries are not currently grown in large quantities in Georgia, there is great potential for expanding the production of this crop. Those farmers who can ensure a stable supply of high-quality raspberries have good sales opportunities both within the country and abroad. Raspberries are a perishable fruit, therefore it is necessary to use a new freezing technology for its storage, which is implemented by fluidized bed quick-freezing machines. These devices are characterized by minimal drying, preservation of product quality and fast freezing. The aim of the study is to determine the advantages of these devices over other refrigeration equipment. The product frozen in this way is well priced and can be stored without spoilage. We have stored raspberries in such devices, where the optimal temperature for raspberry storage is -1 - 0 °C (30 - 32 °F), and > 90% humidity conditions. The following air regulation regime is acceptable for raspberries: 10-20% CO2 + 5-10%O2. In this way, the original quantitative content of biologically active substances, appearance and taste properties are preserved in frozen raspberries. As Georgia strives to join the European Union, the production of safe and standardized, controlled products becomes more relevant.

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