Abstract
The effects of maltodextrin concentration,inlet air temperature and outlet air temperature on the anthocyanins extraction from blueberry pomace by spray-drying technology were studied by response surface methodology. Based on single factor experiment, the quadratic regression model of the powder yield and loss rate of anthocyanins were deduced, then variables were analyzed with response surface methodology (RSM) by Box - Benhnken experiment. Results showed that the optimal technological conditions for spray drying the anthocyanins extraction from blueberry pomace were obtained as follows: maltodextrin concentration was 25.15% , inlet air temperature was 183.03°Cand outlet air temperature was 60.00°C.
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