Establishment of shelf-life prediction model for power bar with color as the deterioration index
Establishment of shelf life prediction model for power bar was studied.The shelf life of power bar in room temperature(25 ℃) was determined based on sensory experiments.Sensory experiment was used to determine the acceptable end point with chromatic aberration as the index.The kinetic models and shelf life prediction models were established based on L* according ASLT at 37,45,50,55,60,65 ℃.The result showed that changes in L* fi t in second-order model.The suitable shelf life prediction model based on L* was lnt=ln(1/m)-(lnK)·C,and the fi tting equation was lnt=9.9354-0.1519C.The predicted shelf life was 298 d with 8.7% prediction error.