Comparitive Study on Optimization of Spray Drying Parameters for Beetroot Juice Powder using Box-Behenken Design and Central Composite Method
Journal Title: BEST : International Journal of Humanities , Arts, Medicine and Sciences ( BEST : IJHAMS ) - Year 2017, Vol 5, Issue 12
Abstract
Comparison on the optimization of beetroot juice powder were done using Box-Behnken design and central composite method, to optimize the spray drying parameters of inlet air temperature (160-180), maltodextrin addition rate (5-15%), and feed flow rate (400-600 ml/h). The experimental results were done for (p<0.05), fitted in the second order polynomial model, to describe and predict the responses, in terms of the powder yield, redness value and beta lain retention. Studies done with box-benken design showed the responses as redness value and betalain retention increased with an increase in maltodextrin concentration, and the optimum conditions were found as inlet air temperature:160 deg, feed flow rate:400ml/h, maltodextrin concentration:15%. Optimization, done with central composite method showed an increase in powder yield alone, with corresponding decrease in redness value, betalain retention and the optimizing conditions were inlet air temperature:170 deg, maltodextrin concentration:10% and feed flow rate:500ml/h. Redness value, along with powder yield plays an important factor, in the optimization of spray drying parameters, hence box behnken design is the most desirable operation.
Authors and Affiliations
Litty Mary Abraham, Anjali Krishna T. U, S. Elizabeth Amudhini Stephen
Keywords
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