The remaining shelf life for frozen strawberry halves canbe found based on a pre-defined acceptability limit for thecolour change using the same kinetic approach that has been analyzed above for vitamin C retention. The limit wasset at the level of 50% “chroma” retention (expressed by“(DCmax− DC)/(DCmax− DC0)” parameter) where the productp roductwas judged of unacceptable colour by the sensory panel. Basedon this level, the shelf life of strawberries, untreated, andosmo-dehydrated with glucose, HDM, and oligofructose wascalculated (Eqs. (2) and (3)) (Table 2). As it is clearly shown,colour was well retained in osmotically pre-treated samples,when compared to untreated ones. Furthermore, the use ofnon-conventional carbohydrates extended products’ shelf lifeat very low freezing temperatures (−12◦C) (Table 2), proving the improved qual-ity retention obtained when using alternative agents in theosmotic solution.