OPTIMIZATION OF SPRAY DRYING CONDITION FROM TRAMETES VERSICOLOR MUSHROOM EXTRACT

Abstract

In this study, the optimal conditions for the spray drying from Trametes versicolor (V.C.) extracts were determined using response surface method/technique (RSM). One kilogram of material was extracted with 30L ethanol 65% of 70oC for 7 hours. Solids were filtered off, extract was concentrated to obtain solution containing about 20% total solid using a vacuum evaporator. Study on the effects of three independent variables, namely maltodextrin ratio (% w/v), feed flow rate (ml/min) and inlet drying temperature (oC) on the responses; total phenolic content (TPC) and moisture content (MC). The optimal conditions for spray drying process from T. versicolor extracts were found to be maltodextrin ratio of 5%w/v, inlet drying temperature of 160oC and feed flow rate of 26.05ml/min. The experimental values of TPC and MC were 35.76±0.04mg GAE/g, 4.43±0.02%