No abstract

In this study, bioactive compounds were extracted from liquorice (Glycyrrhiza glabra) and converted to instant form by the spray dryer. The four different feed emulsions were prepared with liquorice extract as core material, 12% maltodextrin (DE 18-20)/gum Arabic (MD/GA) combination as the coating material. The ratio of core to wall was 1:3. The MD and GA ratio significantly (p<0.05) affected on some parameters of final products. The encapsulation yield and efficiency were observed to vary between range of 46.30-64.11% and 98.15-98.62%, respectively. The encapsulation yield of the feed emulsion of FE4 (MD/GA: 2.25/0.75) was the highest in comparison to the values for other feed emulsions. However, there were not find any significant differences between encapsulation entrapment of the feed emulsions (p>0.05). The highest total phenolic substances (7.02 mg GAE per g of sample) and antioxidant activity (60.15 mg TEAC per g of sample) were found in FE1 (MD/GA: 0.75/2.25). This study proves the success of instant liquorice production using a spray drying technique.