Shelf-Life Estimation from Temperature-Accelerated Studies

Shelf-Life Estimation from Temperature-Accelerated Studies 

In temperature-accelerated studies, shelf life at a storage temperature 7 , is estimated from the shelf life at an elevated temperature T2, according to 

Shelf life is referred to as /Mm) when the lower specification limit of content is 90%. Shelf life exhibits a log-linear relationship versus 1/7 in a given temperature range when the activation energy is constant (Fig. 193). The latter condition usually is only met when the degradation mechanism is the same across the temperature range of exposure. For example, a shelf life of 6 months at 40°C corresponds to a shelf life of 3 years at 25°C when an activation energy of 22.1 kcal/mol is assumed. 

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